Genetic Analysis on Hypocotyl Length Traits of Cucumber Seedlings under Salt Stress

摘要：

　　The research discussed the genetic characteristics of hypocotyl length in cucumber seedlings under salt stress.The six generations (P1,P2,F1,B1,B2 and F2) from the cross between salt-tolerable inbred line M8 (P1) and the salt-sensitive inbred line M7 (P2) were treated withl50mmol NaCl solution in cucumber seedlings stage,and the host gene-multi gene blending inheritance model method was applied to analyze the genetic hypocotyl length.The hypocotyl length was controlled by Additive-dominant-epistatic gene (C-0),and the polygenic heritability in segregating generations (B1,B2,F2) was 47.9002%,31.4338% and 56.8436% respectively,and environmental variance accounted for a larger proportion of the phenotypic variance,which was more than 40%.Its found that the hypocotyl length of cucumber was mainly controlled by polygene,influenced by the environment easily and not suitable for the selection in early generation.

关键词： cucumber (Cucumis sativus L.) hypocotyl length salt stress heredity

作者: ZHANG Yanfang DENG Chuanyu SI Longting

作者单位: College of Horticulture,Shenyang Agricultural University,Shenyang 110161

会议类型: 国际会议

会议名称: The Third Conference on Horticulture Science and Technology (2012第三届园艺科学与技术学术会议(CHST2012))

会议地点: 北京

会议语种:英文

页码: 102-105

在线出版日期: 2012-11-24（万方平台首次上网日期，不代表论文的发表时间）