2004•Xibei Nong-Lin Keji Daxue xuebao. Ziran kexue banRequires access
Cytological studies on anther development of ecological male sterile line 533S in Brassica napus L.
Jungang Dong, Zhensheng Dong, Liu Mingxun Chen Xuanxia, Liu Chuangshe, Hongbing Li
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Abstract
Microscopic observations on anther development process of ecological male sterile line 533S showed that 533S' anther development was hindered at the stage of archesporical cell differentiation.It could not form normal archesporial cell and not differentiate pollen sac,so 533S was regarded as male sterile line which had no pollen sac.During bud development,the size of the aborted anther was increasing but did not differentiate pollen sac.533S' anther could restore and produce 1-2 pollen sac when ecological factors are fit for development of anther.At last,the anther's development was completely normal as ecological factors changed further.