| 水稻籼粳杂种雌性不育的细胞学初步观察(简报) |
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| 引用本文： | 刘永胜,周开达,阴国大,罗文质. 水稻籼粳杂种雌性不育的细胞学初步观察(简报)[J]. 分子细胞生物学报, 1993, 0(1) |
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| 作者姓名： | 刘永胜 周开达 阴国大 罗文质 |
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| 作者单位： | 四川农业大学水稻研究所(刘永胜，周开达)，四川农科院水稻高粱研究所(阴国大)，四川农科院水稻高粱研究所(罗文质) |
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| 摘 要： | 普通栽培稻籼粳亚种间杂种结实率低是开展亚种间杂交育种和杂种优势利用的主要障碍。这一障碍是杂种花粉和胚囊的不育性引起的。不育性曾经认为是两者染色体在结构上存在微小的差异所致,但F_1植株减数分
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| 关 键 词： | 水稻 亚种间杂种 雌性不育 杂种不育 |
PRELIMINARY CYTOIOGICAL OBSERVATIONS ON FEMALE STERILITY OF HYBRIDS BETWEEN INDICA AND JAPONICA RICE |
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| Liu Yong-sheng Zhou Kai-da. PRELIMINARY CYTOIOGICAL OBSERVATIONS ON FEMALE STERILITY OF HYBRIDS BETWEEN INDICA AND JAPONICA RICE[J]. Journal of Molecular Cell Biology, 1993, 0(1) |
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| Authors: | Liu Yong-sheng Zhou Kai-da |
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| Abstract: | The cytology of two hybrids betweenindica and japonica rice(Oryza sativa L.)was observed.The rcsults suggested thatlow seed-set rate of inter-subspecific hyb-rids was due to abortion of a part of em-bryo sacs.Observations on fertilized embryosacs showed none of proembryo and endo-sperm development was of abnormality.The majority of sterile ovules did not con-tain any embryo sac,but only a large darkspot including sometimes a few collapsedcells and nuclei.Other sterile embryo sacspartially developed but more or less dege-nerated before viable embryo sacs formed.Some of fully differentiated embryo sacswere not fertilized after flowering becauseof the affection of environments. |
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| Keywords: | Rice (Oryza sativa).Intersubspecific hybrid.Female sterility.Hybrid sterility. |
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