Genetic variation of main parents of hybrid rice in China was revealed with simple sequence repeat markers
文献类型: 外文期刊
作者: Li, YH;Xiao, H;Zhang, CQ;Hu, GC;Yu, YH;Jia, JZ;Sun, ZX
作者机构:
关键词: simple sequence repeats;parents of hybrid rice;genetic variation
期刊名称: ACTA BOTANICA SINICA
ISSN: 0577-7496
年卷期: 1999 年 41 卷 10 期
页码:
收录情况: SCI
摘要: Total thirty three parents of hybrid rice ( Oryza sativa L,.), including twenty five rice male sterile lines, three maintainer lines and five restore lines, were analyzed by using twenty SSR (simple sequence repeats) primer pairs which disperse on 12 chromosomes in rice. Those primers detected 102 alleles among 33 parents of hybrid rice. PIC (polymorphic index content) values ranged from 0.274 to 0.773. PIC value is 0.554 on the average. Five SSR primer pairs selected from fifty six primer pairs can distinguish individually all of the rice male sterile lines and restore lines in the present study. As results from cluster analysis, it was concluded as follows. (1) Rice male sterile lines have abundant genetic diversity in China. Genetic background was vulnerable among rice male sterile lines used in large scale. (2) In indica rice, genetic variation of the restored lines is larger than that of the male sterile lines. (3) The restored lines were clustered separately from the male sterile lines which are grown widely for production.
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