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Yağcı T. Species Identification of Small Mammal Fauna in Bilecik Province and Molecular Researches for the Protection of Gene Resources. ULUSLARARASI TARIM VE YABAN HAYATI BILIMLERI DERGISI 2019. [DOI: 10.24180/ijaws.478168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Ali S, Mir ZA, Bhat JA, Tyagi A, Chandrashekar N, Yadav P, Rawat S, Sultana M, Grover A. Isolation and characterization of systemic acquired resistance marker gene PR1 and its promoter from Brassica juncea. 3 Biotech 2018; 8:10. [PMID: 29259885 DOI: 10.1007/s13205-017-1027-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 12/04/2017] [Indexed: 11/30/2022] Open
Abstract
Systemic acquired resistance (SAR) is an inducible defense response in plants that provides enhanced resistance against a variety of pathogens. In this regard, SAR marker gene PR1 (pathogenesis-related gene 1) was isolated from Brassica juncea and was named as BjPR1. The amino acid sequence of BjPR1 protein showed 99, 92, and 78% similarity with known PR1 proteins of Brassica rapa, Brassica napus, and Arabidopsis thaliana, respectively. Quantitative real-time PCR (qRT-PCR) analysis showed increased expression of BjPR1 gene both in local (infected) and distal (non-infected) leaves of B. juncea after Alternaria brassicae infection, whereas mechanical wounding showed expression only in local (wounded) leaves but not in distal (unwounded) leaves. Moreover, BjPR1 gene was strongly induced by salicylic acid (SA), whereas no such induction was observed following jasmonic acid (JA) or abscisic acid (ABA) treatments. To further elucidate gene regulation pattern of BjPR1, 2 kb promoter region of BjPR1 was isolated and subjected to in silico analysis which identified many potential cis-regulatory elements associated with plant defense as well as signaling pathways. The transient GUS expression analysis showed strong expression of GUS gene driven by BjPR1 promoter after SA treatment, while as ABA and JA downregulates GUS gene expression compared to control. In addition, BjPR1 promoter was significantly induced by wounding at local tissues. Hence, these results highlight the multiple role of BjPR1 gene in response to biotic and abiotic stresses. In addition, the present study also reported BjPR1 promoter as stress-specific inducible promoter that can be ideal candidate for controlling the expression of biotic stress response genes in transgenic plants.
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Affiliation(s)
- Sajad Ali
- National Research Centre on Plant Biotechnology, PUSA Campus, New Delhi, 110012 India
- Department of Advanced Zoology and Biotechnology, Presidency College, Chennai, India
| | - Zahoor Ahmad Mir
- National Research Centre on Plant Biotechnology, PUSA Campus, New Delhi, 110012 India
| | - Javaid Akhter Bhat
- Division of Genetics, Indian Agricultural Research Institute, New Delhi, 110012 India
| | - Anshika Tyagi
- National Research Centre on Plant Biotechnology, PUSA Campus, New Delhi, 110012 India
| | - N Chandrashekar
- Division of Microbiology, CCUBGA, Indian Agricultural Research Institute, New Delhi, India
| | - Prashant Yadav
- National Research Centre on Plant Biotechnology, PUSA Campus, New Delhi, 110012 India
| | - Sandhya Rawat
- National Research Centre on Plant Biotechnology, PUSA Campus, New Delhi, 110012 India
| | - Mazher Sultana
- Department of Advanced Zoology and Biotechnology, Presidency College, Chennai, India
| | - Anita Grover
- National Research Centre on Plant Biotechnology, PUSA Campus, New Delhi, 110012 India
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Construction and characterization of yeast two-hybrid cDNA library derived from LFBK cell line. Biologicals 2015; 43:202-8. [DOI: 10.1016/j.biologicals.2015.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 01/28/2015] [Indexed: 11/20/2022] Open
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Al-Taweel K, Fernando WGD, Brûlé-Babel AL. Transcriptome profiling of wheat differentially expressed genes exposed to different chemotypes of Fusarium graminearum. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2014; 127:1703-1718. [PMID: 24893796 DOI: 10.1007/s00122-014-2333-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 05/15/2014] [Indexed: 06/03/2023]
Abstract
The study is an overview of the behavior of the wheat transcriptome to the Fusarium graminearum fungus using two different chemotypes. The transcriptome profiles of seven putative differentially expressed defense-related genes were identified by SSH and further examined using qPCR. Fusarium head blight (FHB) of wheat (Triticum aestivum L.), caused by several species of the fungus fusarium, is important in all wheat growing regions worldwide. The most dominant species in Canada is Fusarium graminearum (Fg). F. graminearum isolates producing mycotoxins such as 3-acetyl-deoxynivalenol (3ADON) and 15-acetyl-deoxynivalenol (15ADON). The objective of this study was to investigate the effect of the different chemotypes of Fg on the transcriptome pattern of expressed wheat genes. A cDNA library was constructed from infected "Sumai 3" spikes harvested at different times after inoculation with a macroconidia suspension. Employing suppression subtractive hybridization (SSH), the subtracted cDNA library was differentially screened by dot-blot hybridization. Thirty-one clones were identified; one was isolated and characterized, and transcriptome profiling of seven up-regulated putative defense-related genes was performed using quantitative real-time reverse-transcriptase PCR. These genes may be involved in the wheat-pathogen interactions revealing transcript accumulation differences between the non-diseased, 3ADON-, and 15ADON-infected plants. Additionally, significant differences in gene expression were observed between 3ADON- and 15ADON-infected plants which highlight the significance of a particular chemotype in FHB disease.
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Affiliation(s)
- Khaled Al-Taweel
- Department of Plant Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada,
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Guo Y, Liu C, Lu T, Liu D, Bai C, Li X, Ma Y, Guan W. Generation and analysis of a large-scale expressed sequence tags from a full-length enriched cDNA library of Siberian tiger (Panthera tigris altaica). Gene 2014; 541:75-81. [DOI: 10.1016/j.gene.2014.03.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 02/27/2014] [Accepted: 03/07/2014] [Indexed: 01/25/2023]
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Liu C, Liu D, Guo Y, Lu T, Li X, Zhang M, Ma J, Ma Y, Guan W. Construction of a full-length enriched cDNA library and preliminary analysis of expressed sequence tags from Bengal Tiger Panthera tigris tigris. Int J Mol Sci 2013; 14:11072-83. [PMID: 23708105 PMCID: PMC3709719 DOI: 10.3390/ijms140611072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 04/24/2013] [Accepted: 04/25/2013] [Indexed: 01/01/2023] Open
Abstract
In this study, a full-length enriched cDNA library was successfully constructed from Bengal tiger, Panthera tigris tigris, the most well-known wild Animal. Total RNA was extracted from cultured Bengal tiger fibroblasts in vitro. The titers of primary and amplified libraries were 1.28 × 106 pfu/mL and 1.56 × 109 pfu/mL respectively. The percentage of recombinants from unamplified library was 90.2% and average length of exogenous inserts was 0.98 kb. A total of 212 individual ESTs with sizes ranging from 356 to 1108 bps were then analyzed. The BLASTX score revealed that 48.1% of the sequences were classified as a strong match, 45.3% as nominal and 6.6% as a weak match. Among the ESTs with known putative function, 26.4% ESTs were found to be related to all kinds of metabolisms, 19.3% ESTs to information storage and processing, 11.3% ESTs to posttranslational modification, protein turnover, chaperones, 11.3% ESTs to transport, 9.9% ESTs to signal transducer/cell communication, 9.0% ESTs to structure protein, 3.8% ESTs to cell cycle, and only 6.6% ESTs classified as novel genes. By EST sequencing, a full-length gene coding ferritin was identified and characterized. The recombinant plasmid pET32a-TAT-Ferritin was constructed, coded for the TAT-Ferritin fusion protein with two 6× His-tags in N and C-terminal. After BCA assay, the concentration of soluble Trx-TAT-Ferritin recombinant protein was 2.32 ± 0.12 mg/mL. These results demonstrated that the reliability and representativeness of the cDNA library attained to the requirements of a standard cDNA library. This library provided a useful platform for the functional genome and transcriptome research of Bengal tigers.
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Affiliation(s)
- Changqing Liu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; E-Mails: (C.L.); (T.L.); (X.L.); (Y.M.)
- Department of Bioscience, Bengbu Medical College, Bengbu 233000, China; E-Mail:
| | - Dan Liu
- The Northeast Tiger Wooden Land of Heilongjiang, Harbin 150028, China; E-Mail:
| | - Yu Guo
- Department of Bioscience, Bengbu Medical College, Bengbu 233000, China; E-Mail:
| | - Taofeng Lu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; E-Mails: (C.L.); (T.L.); (X.L.); (Y.M.)
| | - Xiangchen Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; E-Mails: (C.L.); (T.L.); (X.L.); (Y.M.)
| | - Minghai Zhang
- College of Wildlife Resource, Northeast Forestry University, Harbin 150028, China; E-Mails: (M.Z.); (J.M.)
| | - Jianzhang Ma
- College of Wildlife Resource, Northeast Forestry University, Harbin 150028, China; E-Mails: (M.Z.); (J.M.)
| | - Yuehui Ma
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; E-Mails: (C.L.); (T.L.); (X.L.); (Y.M.)
| | - Weijun Guan
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; E-Mails: (C.L.); (T.L.); (X.L.); (Y.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-10-6281-5992; Fax: +86-10-6289-5371
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Sarwat M, Naqvi AR, Ahmad P, Ashraf M, Akram NA. Phytohormones and microRNAs as sensors and regulators of leaf senescence: assigning macro roles to small molecules. Biotechnol Adv 2013; 31:1153-71. [PMID: 23453916 DOI: 10.1016/j.biotechadv.2013.02.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 01/26/2013] [Accepted: 02/02/2013] [Indexed: 10/27/2022]
Abstract
Ageing or senescence is an intricate and highly synchronized developmental phase in the life of plant parts including leaf. Senescence not only means death of a plant part, but during this process, different macromolecules undergo degradation and the resulting components are transported to other parts of the plant. During the period from when a leaf is young and green to the stage when it senesces, a multitude of factors such as hormones, environmental factors and senescence associated genes (SAGs) are involved. Plant hormones including salicylic acid, abscisic acid, jasmonic acid and ethylene advance leaf senescence, whereas others like cytokinins, gibberellins, and auxins delay this process. The environmental factors which generally affect plant development and growth, can hasten senescence, the examples being nutrient dearth, water stress, pathogen attack, radiations, high temperature and light intensity, waterlogging, and air, water or soil contamination. Other important influences include carbohydrate accumulation and high carbon/nitrogen level. To date, although several genes involved in this complex process have been identified, still not much information exists in the literature on the signalling mechanism of leaf senescence. Now, the Arabidopsis mutants have paved our way and opened new vistas to elucidate the signalling mechanism of leaf senescence for which various mutants are being utilized. Recent studies demonstrating the role of microRNAs in leaf senescence have reinforced our knowledge of this intricate process. This review provides a comprehensive and critical analysis of the information gained particularly on the roles of several plant growth regulators and microRNAs in regulation of leaf senescence.
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Affiliation(s)
- Maryam Sarwat
- Pharmaceutical Biotechnology, Amity Institute of Pharmacy, Amity University, Uttar Pradesh (AUUP), NOIDA, India.
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