ACTA AGRICULTURAE BOREALI-SINICA ›› 2013, Vol. 28 ›› Issue (3): 30-34. doi: 10.3969/j.issn.1000-7091.2013.03.006

Special Issue: Biotechnology

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Cloning and Sequence Analysis of a Late Embryogenesis Abundant Protein Gene in Solanum torvum

Ye Xueling, Zhou Baoli   

  1. College of Horticulture,Shenyang Agriculture University, Shenyang 110866,China
  • Received:2013-03-15 Published:2013-06-28

Abstract: Solanum torvum,a wild species of eggplant,is highly resistant to Verticillium wilt.Therefore,it is the ideal material for studying the mechanism of resistance to Verticillium wilt in eggplant. Late embryogenesis abundant proteins ( LEA proteins) are a group of stress-responsive proteins in higher plants that are induced by environmental stress.In this study,a up-regulated EST while infected by Verticillium wilt was used as a querying probe to blast the GenBank database.Based on the assembled homologous cDNA sequences,a 490 bp cDNA was amplified and cloned by RT-PCR,designated StLEA1. The ORF of StLEA1 is 291 bp,coding a protein with 96 animo acids. The molecular weight of coding protein is 10. 748 kDa and isoelectric point is 9.913.StLEA1 protein is a soluble protein with multiple phosphorylation sites,conserve domain in Lea5,but without signal peptides.Quantitative RT-PCR analysis revealed that StLEA1 was up-regulated in roots while Solanum torvum was infected by Verticillium wilt.The result provides the material for studying the resistance mechanism of wild eggplant to Verticillium wilt.

Key words: Solanum torvum, Verticillium wilt, Late embriogenesis abundant protein

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Cite this article

Ye Xueling, Zhou Baoli. Cloning and Sequence Analysis of a Late Embryogenesis Abundant Protein Gene in Solanum torvum[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(3): 30-34. doi: 10.3969/j.issn.1000-7091.2013.03.006.

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