| CYTOLOGIC AND EMBRYOLOGIC STUDIES ON APOMICTS DISCOVERED FROM MALE STERILITY LINE C1001 IN RICE (Oryza sativa L.) |
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| 作者姓名： | 吴伯骥 谢明唐 陈毅平 蒋辉 郭学兴 |
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| 作者单位： | Chengdu Institute of Biology，Academia Sinica，Chengdu 610015，PRC，Chengdu Institute of Biology，Academia Sinica，Chengdu 610015，PRC，Chengdu Institute of Biology，Academia Sinica，Chengdu 610015，PRC，Chengdu Institute of Biology，Academia Sinica，Chengdu 610015，PRC，Chengdu Institute of Biology，Academia Sinica，Chengdu 610015，PRC |
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| 摘 要： | Cytologic and embryologic studies on the reproductive pattern of male sterility line C1001 in rice (Oryza saliva L.) indicated that several types of apomixis were discovered in partial strains of male sterility line C1001 in rice. Under a fully separate condition, two possible apomixis embryogenesis ways in the ovules were observed: One way was that the embryo was initiated from the somatic cells of the ovules, and then pushed against the embryo sac to develop into a mature embryo. The other way was that the embryo was from the unfertilized egg cell or one of synergids, and then developed into a mature embryo in the form of haploid parthenogenesis without forming endosperm. Besides, the antipodal cells migrated in the embryo sac, and their cytoplasm became thin and vacuolated while mitosis was taking place, giving rise to a multicellular structure or a group of large cells each containing several nuclei. This paper also discusses the significance and patterns of apomixis in rice C1001.
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CYTOLOGIC AND EMBRYOLOGIC STUDIES ON APOMICTS DISCOVERED FROM MALE STERILITY LINE C1001 IN RICE (Oryza sativa L.) |
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| WU BO-JI XIE MING-TANG CHEN YI-PINGJIANG HUI . GUO XUE-XING.CYTOLOGIC AND EMBRYOLOGIC STUDIES ON APOMICTS DISCOVERED FROM MALE STERILITY LINE C1001 IN RICE (Oryza sativa L.)[J].Science in China(Chemistry),1991(7). |
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| Authors: | WU BO-JI XIE MING-TANG CHEN YI-PINGJIANG HUI GUO XUE-XING |
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| Abstract: | Cytologic and embryologic studies on the reproductive pattern of male sterility line C1001 in rice (Oryza saliva L.) indicated that several types of apomixis were discovered in partial strains of male sterility line C1001 in rice. Under a fully separate condition, two possible apomixis embryogenesis ways in the ovules were observed: One way was that the embryo was initiated from the somatic cells of the ovules, and then pushed against the embryo sac to develop into a mature embryo. The other way was that the embryo was from the unfertilized egg cell or one of synergids, and then developed into a mature embryo in the form of haploid parthenogenesis without forming endosperm. Besides, the antipodal cells migrated in the embryo sac, and their cytoplasm became thin and vacuolated while mitosis was taking place, giving rise to a multicellular structure or a group of large cells each containing several nuclei. This paper also discusses the significance and patterns of apomixis in rice C1001. |
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| Keywords: | rice apomizis ovule egg apparatus antipodal cells |
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