Selection of Submergence Tolerant Homozygous Line by STS Marker and Twice Submergence Stress
文献类型: 外文期刊
第一作者: Xiao You-lun
作者: Xiao You-lun;Xiao Guo-ying;Li Jin-jiang;Xiao You-lun;Xiao You-lun
作者机构:
关键词: bentazon sensitivity;photoperiod-sensitive and/or thermo-sensitive genic male sterile line;rice;Sub1A-1 gene;submergence tolerance;STS marker
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2012 年 11 卷 12 期
页码:
收录情况: SCI
摘要: One sequence tagged site marker Sub1-1 and twice submergence stress method were used in selection of submergence tolerant homozygous line from Sub-1BS, a submergence tolerant, bentazon sensitive and photoperiod-sensitive and/or thermo-sensitive genic male sterile line that developed by our laboratory. The results revealed that the original Sub-1BS was heterozygous in Sub1A-1 locus even though it was identical in almost all of agronomical traits and the segregation of Sub1A-1 was in accordance with Mendelian law based on chi-square test. And then the original Sub-1BS was divided into two groups: one was of Sub1A-1 introgression and the other was not; and the two groups were tested by twice submergence stress method. After the first submergence stress that lasted for 12 d, the average plant heights were significant difference at the 1% level between the two groups. After recovery for 10 d, the second submergence stress sustained for 18 d was carried on; and the group with Sub1A-1 gene was found apparently tolerant than the other group in submergence tolerance.
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