中国水稻科学
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中国水稻科学  1997, Vol. 11 Issue (2): 113-117     DOI:
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水稻无孢子生殖的胚胎学研究
姚家琳;蔡得田;马平福;祝 虹
华中农业大学农学系,武汉 430070
Embryological Studies on Apospory in Rice HDAR
Yao Ailin; Cai Detian; Ma Pingfu; Zhu Hong
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摘要 为进一步确定水稻HDAR的无融合生殖胚的倍性及发生类型,系统观察了胚囊的发生发育。结果表明水稻HDAR中具有一定频率的无孢子生殖胚囊和由卵细胞孤雌生殖而形成的无融合生殖胚。
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姚家琳
蔡得田
马平福
祝 虹
关键词无融合生殖   无孢子生殖   孤雌生殖     
AbstractAn embryological investigation on the development of female gametophyte formation and embryogenesis in rice HDAR was made. The results revealed that the aposporous embryo sacs originated from certain somatic cells in the vicinity of megasporocyte. As aposporous initials developed simultaneously with megaspore mother cell and competed with each other,either multiple embryo sacs or sometimes only single embryo sac could be observed at later stage in one ovule. Their multiple embryo sacs differed extensively to each other in shape, structure, and polarity. Also, egg-cell in certain embryo sacs, which were difficult to determine their origins, possessed the capacity for parthenogenesis. The coexistence between apomictic ovary and sexual suggested that apospory in observed materials might be a typical facultative apomixis.
Key wordsapomixis   apospory   parthenogenesis   embryology   
收稿日期: 1900-01-01;
引用本文:   
姚家琳,蔡得田,马平福等. 水稻无孢子生殖的胚胎学研究[J]. 中国水稻科学, 1997, 11(2): 113-117 .
Yao Ailin,Cai Detian,Ma Pingfu et al. Embryological Studies on Apospory in Rice HDAR[J]. , 1997, 11(2): 113-117 .
 
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[1] 胡慧英,孙宗修,程式华,颜辉煌. 水稻中多苗发生频率的探讨[J]. 中国水稻科学, 1996, 10(3): 189-190 .
[2] 刘向东,李维明,潘润森,林光霖,林 曦. 高浓度激素喷穗对多胚水稻胚胎发育的影响[J]. 中国水稻科学, 1993, 7(4): 239-242 .
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