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Publisher: Elsevier   (Total: 3183 journals)

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Showing 1 - 200 of 3183 Journals sorted alphabetically
Academic Pediatrics     Hybrid Journal   (Followers: 37, SJR: 1.655, CiteScore: 2)
Academic Radiology     Hybrid Journal   (Followers: 25, SJR: 1.015, CiteScore: 2)
Accident Analysis & Prevention     Partially Free   (Followers: 101, SJR: 1.462, CiteScore: 3)
Accounting Forum     Hybrid Journal   (Followers: 27, SJR: 0.932, CiteScore: 2)
Accounting, Organizations and Society     Hybrid Journal   (Followers: 38, SJR: 1.771, CiteScore: 3)
Achievements in the Life Sciences     Open Access   (Followers: 5)
Acta Anaesthesiologica Taiwanica     Open Access   (Followers: 7)
Acta Astronautica     Hybrid Journal   (Followers: 434, SJR: 0.758, CiteScore: 2)
Acta Automatica Sinica     Full-text available via subscription   (Followers: 2)
Acta Biomaterialia     Hybrid Journal   (Followers: 27, SJR: 1.967, CiteScore: 7)
Acta Colombiana de Cuidado Intensivo     Full-text available via subscription   (Followers: 3)
Acta de Investigación Psicológica     Open Access   (Followers: 3)
Acta Ecologica Sinica     Open Access   (Followers: 11, SJR: 0.18, CiteScore: 1)
Acta Histochemica     Hybrid Journal   (Followers: 3, SJR: 0.661, CiteScore: 2)
Acta Materialia     Hybrid Journal   (Followers: 297, SJR: 3.263, CiteScore: 6)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 5, SJR: 0.504, CiteScore: 1)
Acta Mechanica Solida Sinica     Full-text available via subscription   (Followers: 9, SJR: 0.542, CiteScore: 1)
Acta Oecologica     Hybrid Journal   (Followers: 12, SJR: 0.834, CiteScore: 2)
Acta Otorrinolaringologica (English Edition)     Full-text available via subscription  
Acta Otorrinolaringológica Española     Full-text available via subscription   (Followers: 2, SJR: 0.307, CiteScore: 0)
Acta Pharmaceutica Sinica B     Open Access   (Followers: 1, SJR: 1.793, CiteScore: 6)
Acta Poética     Open Access   (Followers: 4, SJR: 0.101, CiteScore: 0)
Acta Psychologica     Hybrid Journal   (Followers: 25, SJR: 1.331, CiteScore: 2)
Acta Sociológica     Open Access   (Followers: 1)
Acta Tropica     Hybrid Journal   (Followers: 6, SJR: 1.052, CiteScore: 2)
Acta Urológica Portuguesa     Open Access  
Actas Dermo-Sifiliograficas     Full-text available via subscription   (Followers: 3, SJR: 0.374, CiteScore: 1)
Actas Dermo-Sifiliográficas (English Edition)     Full-text available via subscription   (Followers: 2)
Actas Urológicas Españolas     Full-text available via subscription   (Followers: 3, SJR: 0.344, CiteScore: 1)
Actas Urológicas Españolas (English Edition)     Full-text available via subscription   (Followers: 1)
Actualites Pharmaceutiques     Full-text available via subscription   (Followers: 7, SJR: 0.19, CiteScore: 0)
Actualites Pharmaceutiques Hospitalieres     Full-text available via subscription   (Followers: 3)
Acupuncture and Related Therapies     Hybrid Journal   (Followers: 8)
Acute Pain     Full-text available via subscription   (Followers: 15, SJR: 2.671, CiteScore: 5)
Ad Hoc Networks     Hybrid Journal   (Followers: 11, SJR: 0.53, CiteScore: 4)
Addictive Behaviors     Hybrid Journal   (Followers: 17, SJR: 1.29, CiteScore: 3)
Addictive Behaviors Reports     Open Access   (Followers: 9, SJR: 0.755, CiteScore: 2)
Additive Manufacturing     Hybrid Journal   (Followers: 11, SJR: 2.611, CiteScore: 8)
Additives for Polymers     Full-text available via subscription   (Followers: 23)
Advanced Drug Delivery Reviews     Hybrid Journal   (Followers: 177, SJR: 4.09, CiteScore: 13)
Advanced Engineering Informatics     Hybrid Journal   (Followers: 12, SJR: 1.167, CiteScore: 4)
Advanced Powder Technology     Hybrid Journal   (Followers: 17, SJR: 0.694, CiteScore: 3)
Advances in Accounting     Hybrid Journal   (Followers: 9, SJR: 0.277, CiteScore: 1)
Advances in Agronomy     Full-text available via subscription   (Followers: 16, SJR: 2.384, CiteScore: 5)
Advances in Anesthesia     Full-text available via subscription   (Followers: 29, SJR: 0.126, CiteScore: 0)
Advances in Antiviral Drug Design     Full-text available via subscription   (Followers: 2)
Advances in Applied Mathematics     Full-text available via subscription   (Followers: 11, SJR: 0.992, CiteScore: 1)
Advances in Applied Mechanics     Full-text available via subscription   (Followers: 11, SJR: 1.551, CiteScore: 4)
Advances in Applied Microbiology     Full-text available via subscription   (Followers: 24, SJR: 2.089, CiteScore: 5)
Advances In Atomic, Molecular, and Optical Physics     Full-text available via subscription   (Followers: 15, SJR: 0.572, CiteScore: 2)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4, SJR: 2.61, CiteScore: 7)
Advances in Botanical Research     Full-text available via subscription   (Followers: 2, SJR: 0.686, CiteScore: 2)
Advances in Cancer Research     Full-text available via subscription   (Followers: 33, SJR: 3.043, CiteScore: 6)
Advances in Carbohydrate Chemistry and Biochemistry     Full-text available via subscription   (Followers: 9, SJR: 1.453, CiteScore: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5, SJR: 1.992, CiteScore: 5)
Advances in Cell Aging and Gerontology     Full-text available via subscription   (Followers: 5)
Advances in Cellular and Molecular Biology of Membranes and Organelles     Full-text available via subscription   (Followers: 14)
Advances in Chemical Engineering     Full-text available via subscription   (Followers: 28, SJR: 0.156, CiteScore: 1)
Advances in Child Development and Behavior     Full-text available via subscription   (Followers: 10, SJR: 0.713, CiteScore: 1)
Advances in Chronic Kidney Disease     Full-text available via subscription   (Followers: 10, SJR: 1.316, CiteScore: 2)
Advances in Clinical Chemistry     Full-text available via subscription   (Followers: 26, SJR: 1.562, CiteScore: 3)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 20, SJR: 1.977, CiteScore: 8)
Advances in Computers     Full-text available via subscription   (Followers: 14, SJR: 0.205, CiteScore: 1)
Advances in Dermatology     Full-text available via subscription   (Followers: 15)
Advances in Developmental Biology     Full-text available via subscription   (Followers: 13)
Advances in Digestive Medicine     Open Access   (Followers: 12)
Advances in DNA Sequence-Specific Agents     Full-text available via subscription   (Followers: 7)
Advances in Drug Research     Full-text available via subscription   (Followers: 26)
Advances in Ecological Research     Full-text available via subscription   (Followers: 44, SJR: 2.524, CiteScore: 4)
Advances in Engineering Software     Hybrid Journal   (Followers: 29, SJR: 1.159, CiteScore: 4)
Advances in Experimental Biology     Full-text available via subscription   (Followers: 8)
Advances in Experimental Social Psychology     Full-text available via subscription   (Followers: 49, SJR: 5.39, CiteScore: 8)
Advances in Exploration Geophysics     Full-text available via subscription   (Followers: 1)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 9)
Advances in Food and Nutrition Research     Full-text available via subscription   (Followers: 65, SJR: 0.591, CiteScore: 2)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 17)
Advances in Genetics     Full-text available via subscription   (Followers: 20, SJR: 1.354, CiteScore: 4)
Advances in Genome Biology     Full-text available via subscription   (Followers: 10, SJR: 12.74, CiteScore: 13)
Advances in Geophysics     Full-text available via subscription   (Followers: 6, SJR: 1.193, CiteScore: 3)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 25, SJR: 0.368, CiteScore: 1)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 11, SJR: 0.749, CiteScore: 3)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 23)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 3, SJR: 0.193, CiteScore: 0)
Advances in Immunology     Full-text available via subscription   (Followers: 36, SJR: 4.433, CiteScore: 6)
Advances in Inorganic Chemistry     Full-text available via subscription   (Followers: 10, SJR: 1.163, CiteScore: 2)
Advances in Insect Physiology     Full-text available via subscription   (Followers: 2, SJR: 1.938, CiteScore: 3)
Advances in Integrative Medicine     Hybrid Journal   (Followers: 6, SJR: 0.176, CiteScore: 0)
Advances in Intl. Accounting     Full-text available via subscription   (Followers: 3)
Advances in Life Course Research     Hybrid Journal   (Followers: 8, SJR: 0.682, CiteScore: 2)
Advances in Lipobiology     Full-text available via subscription   (Followers: 1)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Marine Biology     Full-text available via subscription   (Followers: 20, SJR: 0.88, CiteScore: 2)
Advances in Mathematics     Full-text available via subscription   (Followers: 12, SJR: 3.027, CiteScore: 2)
Advances in Medical Sciences     Hybrid Journal   (Followers: 7, SJR: 0.694, CiteScore: 2)
Advances in Medicinal Chemistry     Full-text available via subscription   (Followers: 6)
Advances in Microbial Physiology     Full-text available via subscription   (Followers: 4, SJR: 1.158, CiteScore: 3)
Advances in Molecular and Cell Biology     Full-text available via subscription   (Followers: 23)
Advances in Molecular and Cellular Endocrinology     Full-text available via subscription   (Followers: 8)
Advances in Molecular Toxicology     Full-text available via subscription   (Followers: 7, SJR: 0.182, CiteScore: 0)
Advances in Nanoporous Materials     Full-text available via subscription   (Followers: 4)
Advances in Oncobiology     Full-text available via subscription   (Followers: 2)
Advances in Organ Biology     Full-text available via subscription   (Followers: 2)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 18, SJR: 1.875, CiteScore: 4)
Advances in Parallel Computing     Full-text available via subscription   (Followers: 7, SJR: 0.174, CiteScore: 0)
Advances in Parasitology     Full-text available via subscription   (Followers: 5, SJR: 1.579, CiteScore: 4)
Advances in Pediatrics     Full-text available via subscription   (Followers: 25, SJR: 0.461, CiteScore: 1)
Advances in Pharmaceutical Sciences     Full-text available via subscription   (Followers: 17)
Advances in Pharmacology     Full-text available via subscription   (Followers: 16, SJR: 1.536, CiteScore: 3)
Advances in Physical Organic Chemistry     Full-text available via subscription   (Followers: 9, SJR: 0.574, CiteScore: 1)
Advances in Phytomedicine     Full-text available via subscription  
Advances in Planar Lipid Bilayers and Liposomes     Full-text available via subscription   (Followers: 3, SJR: 0.109, CiteScore: 1)
Advances in Plant Biochemistry and Molecular Biology     Full-text available via subscription   (Followers: 10)
Advances in Plant Pathology     Full-text available via subscription   (Followers: 5)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 19)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 20, SJR: 0.791, CiteScore: 2)
Advances in Psychology     Full-text available via subscription   (Followers: 65)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 6, SJR: 0.371, CiteScore: 1)
Advances in Radiation Oncology     Open Access   (Followers: 1, SJR: 0.263, CiteScore: 1)
Advances in Small Animal Medicine and Surgery     Hybrid Journal   (Followers: 3, SJR: 0.101, CiteScore: 0)
Advances in Space Biology and Medicine     Full-text available via subscription   (Followers: 6)
Advances in Space Research     Full-text available via subscription   (Followers: 419, SJR: 0.569, CiteScore: 2)
Advances in Structural Biology     Full-text available via subscription   (Followers: 5)
Advances in Surgery     Full-text available via subscription   (Followers: 13, SJR: 0.555, CiteScore: 2)
Advances in the Study of Behavior     Full-text available via subscription   (Followers: 36, SJR: 2.208, CiteScore: 4)
Advances in Veterinary Medicine     Full-text available via subscription   (Followers: 20)
Advances in Veterinary Science and Comparative Medicine     Full-text available via subscription   (Followers: 15)
Advances in Virus Research     Full-text available via subscription   (Followers: 5, SJR: 2.262, CiteScore: 5)
Advances in Water Resources     Hybrid Journal   (Followers: 53, SJR: 1.551, CiteScore: 3)
Aeolian Research     Hybrid Journal   (Followers: 6, SJR: 1.117, CiteScore: 3)
Aerospace Science and Technology     Hybrid Journal   (Followers: 375, SJR: 0.796, CiteScore: 3)
AEU - Intl. J. of Electronics and Communications     Hybrid Journal   (Followers: 8, SJR: 0.42, CiteScore: 2)
African J. of Emergency Medicine     Open Access   (Followers: 6, SJR: 0.296, CiteScore: 0)
Ageing Research Reviews     Hybrid Journal   (Followers: 11, SJR: 3.671, CiteScore: 9)
Aggression and Violent Behavior     Hybrid Journal   (Followers: 468, SJR: 1.238, CiteScore: 3)
Agri Gene     Hybrid Journal   (Followers: 1, SJR: 0.13, CiteScore: 0)
Agricultural and Forest Meteorology     Hybrid Journal   (Followers: 17, SJR: 1.818, CiteScore: 5)
Agricultural Systems     Hybrid Journal   (Followers: 31, SJR: 1.156, CiteScore: 4)
Agricultural Water Management     Hybrid Journal   (Followers: 44, SJR: 1.272, CiteScore: 3)
Agriculture and Agricultural Science Procedia     Open Access   (Followers: 4)
Agriculture and Natural Resources     Open Access   (Followers: 3)
Agriculture, Ecosystems & Environment     Hybrid Journal   (Followers: 58, SJR: 1.747, CiteScore: 4)
Ain Shams Engineering J.     Open Access   (Followers: 5, SJR: 0.589, CiteScore: 3)
Air Medical J.     Hybrid Journal   (Followers: 6, SJR: 0.26, CiteScore: 0)
AKCE Intl. J. of Graphs and Combinatorics     Open Access   (SJR: 0.19, CiteScore: 0)
Alcohol     Hybrid Journal   (Followers: 12, SJR: 1.153, CiteScore: 3)
Alcoholism and Drug Addiction     Open Access   (Followers: 11)
Alergologia Polska : Polish J. of Allergology     Full-text available via subscription   (Followers: 1)
Alexandria Engineering J.     Open Access   (Followers: 2, SJR: 0.604, CiteScore: 3)
Alexandria J. of Medicine     Open Access   (Followers: 1, SJR: 0.191, CiteScore: 1)
Algal Research     Partially Free   (Followers: 11, SJR: 1.142, CiteScore: 4)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 2)
Allergologia et Immunopathologia     Full-text available via subscription   (Followers: 1, SJR: 0.504, CiteScore: 1)
Allergology Intl.     Open Access   (Followers: 5, SJR: 1.148, CiteScore: 2)
Alpha Omegan     Full-text available via subscription   (SJR: 3.521, CiteScore: 6)
ALTER - European J. of Disability Research / Revue Européenne de Recherche sur le Handicap     Full-text available via subscription   (Followers: 10, SJR: 0.201, CiteScore: 1)
Alzheimer's & Dementia     Hybrid Journal   (Followers: 53, SJR: 4.66, CiteScore: 10)
Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring     Open Access   (Followers: 6, SJR: 1.796, CiteScore: 4)
Alzheimer's & Dementia: Translational Research & Clinical Interventions     Open Access   (Followers: 6, SJR: 1.108, CiteScore: 3)
Ambulatory Pediatrics     Hybrid Journal   (Followers: 6)
American Heart J.     Hybrid Journal   (Followers: 58, SJR: 3.267, CiteScore: 4)
American J. of Cardiology     Hybrid Journal   (Followers: 63, SJR: 1.93, CiteScore: 3)
American J. of Emergency Medicine     Hybrid Journal   (Followers: 45, SJR: 0.604, CiteScore: 1)
American J. of Geriatric Pharmacotherapy     Full-text available via subscription   (Followers: 12)
American J. of Geriatric Psychiatry     Hybrid Journal   (Followers: 14, SJR: 1.524, CiteScore: 3)
American J. of Human Genetics     Hybrid Journal   (Followers: 35, SJR: 7.45, CiteScore: 8)
American J. of Infection Control     Hybrid Journal   (Followers: 29, SJR: 1.062, CiteScore: 2)
American J. of Kidney Diseases     Hybrid Journal   (Followers: 35, SJR: 2.973, CiteScore: 4)
American J. of Medicine     Hybrid Journal   (Followers: 50)
American J. of Medicine Supplements     Full-text available via subscription   (Followers: 3, SJR: 1.967, CiteScore: 2)
American J. of Obstetrics and Gynecology     Hybrid Journal   (Followers: 241, SJR: 2.7, CiteScore: 4)
American J. of Ophthalmology     Hybrid Journal   (Followers: 66, SJR: 3.184, CiteScore: 4)
American J. of Ophthalmology Case Reports     Open Access   (Followers: 5, SJR: 0.265, CiteScore: 0)
American J. of Orthodontics and Dentofacial Orthopedics     Full-text available via subscription   (Followers: 6, SJR: 1.289, CiteScore: 1)
American J. of Otolaryngology     Hybrid Journal   (Followers: 25, SJR: 0.59, CiteScore: 1)
American J. of Pathology     Hybrid Journal   (Followers: 30, SJR: 2.139, CiteScore: 4)
American J. of Preventive Medicine     Hybrid Journal   (Followers: 28, SJR: 2.164, CiteScore: 4)
American J. of Surgery     Hybrid Journal   (Followers: 39, SJR: 1.141, CiteScore: 2)
American J. of the Medical Sciences     Hybrid Journal   (Followers: 12, SJR: 0.767, CiteScore: 1)
Ampersand : An Intl. J. of General and Applied Linguistics     Open Access   (Followers: 7)
Anaerobe     Hybrid Journal   (Followers: 4, SJR: 1.144, CiteScore: 3)
Anaesthesia & Intensive Care Medicine     Full-text available via subscription   (Followers: 64, SJR: 0.138, CiteScore: 0)
Anaesthesia Critical Care & Pain Medicine     Full-text available via subscription   (Followers: 23, SJR: 0.411, CiteScore: 1)
Anales de Cirugia Vascular     Full-text available via subscription   (Followers: 1)
Anales de Pediatría     Full-text available via subscription   (Followers: 3, SJR: 0.277, CiteScore: 0)
Anales de Pediatría (English Edition)     Full-text available via subscription  
Anales de Pediatría Continuada     Full-text available via subscription  
Analytic Methods in Accident Research     Hybrid Journal   (Followers: 5, SJR: 4.849, CiteScore: 10)
Analytica Chimica Acta     Hybrid Journal   (Followers: 44, SJR: 1.512, CiteScore: 5)
Analytica Chimica Acta : X     Open Access  
Analytical Biochemistry     Hybrid Journal   (Followers: 206, SJR: 0.633, CiteScore: 2)
Analytical Chemistry Research     Open Access   (Followers: 13, SJR: 0.411, CiteScore: 2)
Analytical Spectroscopy Library     Full-text available via subscription   (Followers: 14)
Anesthésie & Réanimation     Full-text available via subscription   (Followers: 2)
Anesthesiology Clinics     Full-text available via subscription   (Followers: 25, SJR: 0.683, CiteScore: 2)
Angiología     Full-text available via subscription   (SJR: 0.121, CiteScore: 0)
Angiologia e Cirurgia Vascular     Open Access   (Followers: 1, SJR: 0.111, CiteScore: 0)
Animal Behaviour     Hybrid Journal   (Followers: 210, SJR: 1.58, CiteScore: 3)
Animal Feed Science and Technology     Hybrid Journal   (Followers: 6, SJR: 0.937, CiteScore: 2)
Animal Reproduction Science     Hybrid Journal   (Followers: 7, SJR: 0.704, CiteScore: 2)

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Similar Journals
Journal Cover
Agri Gene
Journal Prestige (SJR): 0.13
Number of Followers: 1  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Online) 2352-2151
Published by Elsevier Homepage  [3183 journals]
  • Transgenic citrus plants expressing a ‘Candidatus Liberibacter
           
    • Abstract: Publication date: June 2019Source: Agri Gene, Volume 12Author(s): Guixia Hao, Desouky Ammar, Yongping Duan, Ed Stover ‘Candidatus Liberibacter asiaticus’ (Las) is one of the most destructive plant pathogens associated with citrus huanglongbing (HLB). Las is a Gram-negative, as yet uncultured, alpha-Proteobacterium and is transmitted by the Asian citrus psyllid, Diaphorina citri. A putative protein (designated as LasP235) was identified in the prophage region of the Las psy62 genome. LasP235 gene encodes a 123 amino-acid protein which is predicted to localize to the plant nucleus. Green fluorescence protein (GFP)-fused with LasP235 appeared to accumulate in Nicotiana benthamiana cell nuclei following Agrobacterium-mediated transient expression. To eliminate potential side effects of GFP protein, LasP235 alone was inserted into a binary vector for transforming Carrizo citrange (Citrus sinensis X Poncirus trifoliata). Transgenic Carrizo plants were obtained. LasP235 gene integration was confirmed by PCR and the levels of LasP235 expression were compared by RT-quantitative PCR (RT-qPCR). Some LasP235 expressing Carrizo plants displayed HLB-like symptoms, including leaf chlorosis and plant growth retardation. LasP235 gene expression levels, determined by RT-qPCR, correlated with HLB-like symptoms. Furthermore, The expression of LasP235 was upregulated in chlorotic tissue compared to green tissue of Las-infected, blotchy mottled leaves of lemon and grapefruit. Transcriptome analysis revealed that metabolic pathways and biosynthesis of secondary metabolites were significantly altered in transgenic citrus expressing the LasP235 effector. Further investigation of LasP235, especially research focused on identifying its binding protein in citrus, may provide a way to block Las infection.
       
  • Coat protein 3 of Rice tungro spherical virus is the key target gene for
           development of RNAi mediated tungro disease resistance in rice
    • Abstract: Publication date: June 2019Source: Agri Gene, Volume 12Author(s): P. Malathi, Shaik Abdul Muzammil, D. Krishnaveni, S.M. Balachandran, Satendra K. Mangrauthia Rice tungro disease (RTD) is the most important viral disease of rice which limits its production and productivity in major rice growing regions of the world. The disease is caused by the combined action of Rice tungro bacilliform virus (RTBV) and Rice tungro spherical virus (RTSV). The RTBV is primarily responsible for symptom development while RTSV encodes proteins required for virus transmission. In this study, we developed an RNAi gene construct containing highly conserved partial sequences of coat protein 3 (CP3) gene of RTSV. The transgenic rice plants were developed in the background of japonica rice cultivar Taipei-309 through Agrobacterium mediated genetic transformation. The transgene showed stable inheritance as determined by PCR and Southern hybridization analyses. Two homozygous transgenic lines from the T4 generation were inoculated by virus through viruliferous insect vectors. These lines showed highly resistant phenotypes against the tungro disease which was further supported by studies of plant morphology and yield attributes. Also, the transgenic lines showed an inability to transmit the virus complex which could be due to suppression of RTSV proteins involved in virus transmission through insects. This study shows that CP3 of RTSV is a key target gene for development of RNAi mediated tungro disease resistance in rice.
       
  • Abscisic acid affects ethylene metabolism and carotenoid biosynthesis in
           Japanese apricot (Prunus mume Sieb. et Zucc.)
    • Abstract: Publication date: June 2019Source: Agri Gene, Volume 12Author(s): Shanshan Wang, Hong Lin, Takanori Saito, Katsuya Ohkawa, Hitoshi Ohara, Haifeng Jia, Satoru Kondo The Japanese apricot (Prunus mume Sieb. et Zucc.) is a typical climacteric fruit which loses commercial value during processing when the surface color turns yellow. In our study, treatment with nordihydroguaiaretic acid (NDGA), an abscisic acid (ABA) synthesis inhibitor, delayed the increase of ethylene and decrease of firmness towards ripening, and retarded the degradation of chlorophyll and the accumulation of carotenoids including β-carotene and lycopene through the expression of PmCHL (coding for chlorophyllase), PmGGPPS (coding for geranylgeranyl diphosphate synthase), PmPDS (coding for phytoene desaturase), PmPSY (coding for phytoene synthases), and PmLCYB (coding for lycopene beta-cyclase). NDGA inhibited the ABA synthesis through PmNCED1 and these results show that ABA may affect the ripening of the Japanese apricot by influencing ethylene production and the expression of PmACS (coding for ACC synthase), PmACO (ACC oxidase) and the ethylene-responsive gene PmERF (ethylene-responsive transcription factor), and thus that ethylene and ABA may interact during fruit ripening in climacteric fruit.
       
  • Enhanced insect and fungal resistance of maize callus transgenically
           expressing a maize E2F regulatory gene
    • Abstract: Publication date: Available online 21 March 2019Source: Agri GeneAuthor(s): Patrick F. Dowd, Eric T. Johnson A maize gene coding for an E2F regulatory protein located in a quantitative trait locus (QTL) for Fusarium ear rot resistance was cloned and transgenically introduced into maize callus. Several of the transformants were more resistant to feeding by corn earworms and fall armyworms, and retarded growth of Fusarium proliferatum compared to GUS control transformants. More effective transformants contained higher levels of E2F product than GUS controls as indicated by antibody detection. Increased and decreased levels of regulated proteins were noted in E2F overexpressing compared to GUS expressing control transformants. These differentially produced proteins were previously reported to be interactors with the E2F protein, suggesting E2F is affecting the production of these proteins. Other proteins coded for by genes reported to interact with the relevant E2F protein and associated phenotypic effects that could be promoting resistance include those that would increase cell resistance to water stress, increase the presence of reactive oxygen species, and increase the density of indigestible components. Although the full complex of responsible proteins regulated by the E2F examined that promote resistance to insects and fungi remains to be determined, overproduction of the E2F in transgenic callus enhances resistance to some maize insect and fungal pests.
       
  • Knockdown of acetylcholinesterase (AChE) gene in rice yellow stem borer,
           Scirpophaga incertulas (Walker) through RNA interference
    • Abstract: Publication date: March 2019Source: Agri Gene, Volume 11Author(s): Vijaya Sudhakara Rao Kola, Renuka Pichili, Ayyagari Phani Padmakumari, Satendra Kumar Mangrauthia, Sena M. Balachandran, Maganti Sheshu Madhav Yellow stem borer (YSB), Scirpophaga incertulas, (Walker) is one the most destructive pests in rice causing severe yield loss. Of the many approaches for managing insect pests, RNA interference (RNAi) is a viable option which can be employed by targeting the key insect genes that are involved in host-pest interactions. In this study, Acetylcholinesterase (AChE), a key gene of YSB was targeted for silencing through a RNAi approach. Specifically designed dsRNA from the alpha/beta hydrolase fold of YSB AChE was labeled with 5’ FAM (Fluorescent dye) and used in this study. The efficacy of dsRNA was evaluated through a systematic insect bioassay. Larval growth and mortality were observed for a period of 15 days after the treatment through the cut stem assays. The reduced larval length and weight were observed in the dsRNA treated samples which were correlated with the low gene expression compared to the untreated controls. These results suggest that AChE is a potential target for RNAi approach in insects.
       
  • Biological alternatives to pesticides to control wireworms (Coleoptera:
           Elateridae)
    • Abstract: Publication date: March 2019Source: Agri Gene, Volume 11Author(s): Diana la Forgia, François Verheggen Most studies on plant-insect interactions focus on the aboveground parts of plants, but the knowledge regarding the belowground interactions is increasing. Soil pests are at least equally dangerous to plant health and elicit plant defense mechanisms as well. Wireworms (Coleoptera: Elateridae) are common polyphagous soil pests of various crops, including economically relevant crops such as maize and potatoes. Their management with pesticides is often not successful or sustainable, and more research on biological alternatives is required. We aim at providing an overview of biological control methods under development or commercially available. Little is known about the natural enemies of wireworms, and the available work is often limited to laboratory experiments. The interest for using using microorganisms as biocontrol agent is increasing, and entomopathogenic fungi, nematodes, and bacteria represent promising alternatives to pesticides. The review discusses the combination of attractive semiochemicals with biological agents to improve wireworm monitoring and control, as well as research advances on these fronts.
       
  • Functional marker assisted improvement of productive mulberry silkworm
           breeds conferring resistance to Bombyx mori Bidensovirus (BmBDV)
    • Abstract: Publication date: March 2019Source: Agri Gene, Volume 11Author(s): Tania Gupta, Ramesha A. Reddy, Rakesh K. Mishra, Manthira Moorthy, Vankadara Sivaprasad, Kangayam M. Ponnuvel Flacherie is a widely prevalent disease in silkworms that causes huge economic losses to the sericulture industry. The Bombyx mori bidensovirus (BmBDV) is one of the causative agents of this disease. A major gene, nsd-2 (non-susceptibility to densovirus-2), a putative BmBDV receptor conferring resistance under recessive mutation condition has previously been identified. The natural deletion occurring in the nsd-2 gene has contributed to the evolution of BmBDV resistant silkworm breeds. However, nsd-2 has not yet been utilized as a marker or as a transgene for the development of BmBDV resistant breeds. In this study, we have demonstrated the use of the functional marker, nsd-2 for the development of absolute BmBDV resistant productive mulberry silkworm breeds. We screened 49 productive bivoltine breeds and identified 28 breeds carrying the nsd-2 resistant allele. Sixteen breeds having the resistant allele were identified in heterozygous condition at the nsd-2 locus, so these breeds could not be identified as resistant carrier when challenged with virus inoculation. Further, we have shown that selecting nsd-2 resistant allele in homozygous condition, at the nsd-2 locus is sufficient for the development of BmBDV resistant productive breeds like CSR6-R and CSR26-R. We have also validated the developed breeds for resistance to BmBDV through bioassays and found absence of viral genome at the molecular level thereby demonstrating complete resistance upon BmBDV infection, in the developed breeds.
       
 
 
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