ACTA AGRICULTURAE BOREALI-SINICA ›› 2012, Vol. 27 ›› Issue (1): 12-17. doi: 10.3969/j.issn.1000-7091.2012.01.003

Special Issue: Cotton Biotechnology

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Cloning and Expression Analysis of GhGME Gene from Gossypium hirsuturm L.

WANG Jiang-ying1,2, ZHANG Ning1, SI Huai-jun1, WU Jia-he2   

  1. 1. Gansu Key Laboratory of Crop Genetic and Germplasm Enhancement, Gansu Agricultural University, Lanzhou 730070, China;
    2. State Key Laboratory of Plant Genomic, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2011-11-07 Published:2012-02-28

Abstract: On the basis of salt stress-related EST sequences of Gossypium hirsuturm L., a GDP-mannose-3', 5'-epimerase(GME) gene was isolated by the 3', 5'-RACE technology, named GhGME. The full-length cDNA of GhGME is 1467 bp, containing an 1131 bp ORF which encodes 376 amino acids. The relative molecular weight of GhGME protein is 42. 396 kDa, and its isoelectric point(pI) is 6. 291. Fluorescent quantitative real-time RT-PCR analysis of the expression of GhGME in roots, stems, leaves and three different treatments were employed. The results showed that the relative expression of GhGME was higher in roots and stems than that in leaves. And the expression of GhGME was up-regulated under either the 4℃ or 200 mmol/L NaCl treatment, but that was down-regulated under the 100 μmol/L GA3 treatment. Differential expressions of GhGME under various treatments suggest that GhGME may play an important role in cotton acclimatization to environmental stresses. The response of GhGME to various stresses in this study indicates that GhGME should be further evaluated in fuction.

Key words: Gossypium hirsuturm L., Gene clone, GDP-mannose 3', 5'-epimerase, Expression analysis

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Cite this article

WANG Jiang-ying, ZHANG Ning, SI Huai-jun, WU Jia-he. Cloning and Expression Analysis of GhGME Gene from Gossypium hirsuturm L.[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(1): 12-17. doi: 10.3969/j.issn.1000-7091.2012.01.003.

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