高粱A6型细胞质雄性不育系花粉母细胞减数分裂行为的观察和分析.pdf

作物学报 ACTA AGRONOMICA SINICA 2010, 36(4): 709−712 /zwxb/ ISSN 0496-3490; CODEN TSHPA9 E-mail: xbzw@ DOI: 10.3724/SP.J.1006.2010.00709 高粱A6 型细胞质雄性不育系花粉母细胞减数分裂行为的观察和分析 梁小红 仪治本 邓小敏 谢晓丽 , 030051 : (Sorghum bicolor L. Moench)(CMS)7 , A ~A 9EA 1 6 6 A6 Tx398 B6 Tx398 , A6 , A6 CMS , , , II A6 CMS B6 (2n=20), I 2n=40, 20 ; I ; I , II 40 , X ; II, 2 3 4 , , A6 CMS , , : ; CMS; ; Observation and Analysis of Meiotic Behaviors of Pollen-Mother-Cell in Sor- ghum A6 Cytoplasmic Male Sterile Line LIANG Xiao-Hong, YI Zhi-Ben, DENG Xiao-Min, and XIE Xiao-Li Department of Life Sciences, North University of China, Taiyuan 030051, China Abstract: Sorghum (Sorghum bicolor L. Moench) is one of the most important food crops in the world, and it is also one of the earliest crops, which the heterosis has been commercially used due to the discovery and utilization of cytoplasmic sterility (CMS). There are seven types of CMS in sorghum, including A , A , A , A , A , A , and 9E. In this study, A cytplasmic male 1 2 3 4 5 6 6 sterile line A Tx398 and its isogonic maintainer line B Tx398 were used to observe and analyze the chromosomal behaviors 6 6 o