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HEREDITAS ›› 2010, Vol. 32 ›› Issue (6): 632-638.doi: 10.3724/SP.J.1005.2010.00632

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Expression analysis of the unisex-determine gene M in cucumber

TAO Qian-Yi, LI Zheng, HE Huan-Le, PAN Jun-Song, CAI Run   

  1. School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2009-10-11 Revised:2010-03-04 Online:2010-06-20 Published:2010-05-24
  • Contact: CAI Run E-mail:cairun@sjtu.edu.cn

Abstract:

Sex determination in plants has various machnisam; however, a single gene locus controlling unisexual expression is unique in the Cucurbitaceae plants, particularly cucumber (Cucumis sativus L.) and melon (Cucumis melo L.). In this study, with quantitative RT-PCR method, two sets of near-isogenic lines (NILs) were used to analyze the expression pattern of gene CsACS2 (GenBank accession number FJ529216). Additionally, chemical applications (AgNO3 and AVG) were used to investi-gate the effect of the plant endogenous ethylene on CsACS2 expression. Expression analysis reveals that endogenous ethylene, which might be derived from F or M itself, could activate the expression of M gene.

Key words: Cucumis sativus L., sex determination, M gene, CsACS2, expression analysis