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Position: Home > Articles > Analysis of sterility of CMS line K17A in rice Southwest China Journal of Agricultural Sciences 2001,14 (1) 20-22

水稻不育系K17A育性特征研究

作  者:
李贤勇;杨勋毅;王楚桃;黄中伦;刘永文;刘大智
单  位:
重庆市种子站
关键词:
水稻不育系;K17A;育性;杂株;微效恢复基因
摘  要:
通过对水稻不育系K17A杂株类型及其来源的分析研究 ,发现导致其育性波动的主要原因在于K17A存在微效恢复基因 ,短日和高温可启动这些基因 ;微效恢复基因的启动具有累加效应 ,在不同个体之间这些基因被启动的数量不一致 ;K型胞质对育性无影响。明确了K17A提纯复壮的方向
译  名:
Analysis of sterility of CMS line K17A in rice
作  者:
LI Xian-yong,YANG Xun-yi,WANG Chu-tao,HUANG Zhong-lun, LIU Yong-wen,LIU Da-zhi -(Chongqing Seed Management Station,Chongqing 400060,China)-
关键词:
CMS line K17A;sterility;impure plant;polygene with weak restoring ability
摘  要:
This paper dealt with the types and origin of impure plants of CMS line K17A in riec.It was found that there were two types of impure plants in K17A,one was caused by mechanical and biological mix,and the other was controlled by polygenes with weak restoring ability.Short photoperiod and high temperature during the panicle differentiation might activate these genes and change the sterility stability.The amount of polygenes activated in various plants of K17A was different.By using proper method K17A can be purified -

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