| 摘要: |
| 观察ARN77黑麦花粉诱导［84GN6×79（1B）8-8］FN1植株的假受精行为，结果表明：①大量花粉管物质及精子停留在卵细胞外，不能诱发卵细胞单性分裂；②较大的精子进入卵核，靠近或接触核仁且不与核仁融合，对卵细胞单性分裂有明显的诱发作用；③当卵核被诱发启动分裂，其极核中的精子可能与其融合形成初生胚乳核并继续分裂，也可能以雄性核仁的状态继续停留在极核中。 |
| 关键词: 黑麦花粉，小麦育种，孤雌生殖，细胞学 |
| DOI： |
| 分类号:Q944 |
| 基金项目: |
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| Cytology of Wheat Parthenogenesis Induced by Pollination with Rey Pollen |
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| Abstract: |
| Pseudogamy of FN1 hybrid plants of [84GN6×79(1B)8-8] induced by rey
pollen of ARN77 were observed,the results indicated that:1.Large number of matter in
pollen tubes and sperma stayed outside egg cells could not induced parthelio-division in
egg nucleus;2.Bigger sperms entered into egg nucleus close to or contact the nucleolus,
without fusing with it,which had an abvious effect on inducing parthene-division in egg
cell nucleus;3.When egg nucleus had been induced to division,with which sperms in polar nuclei of the same embryo could be fused to form a primary endosperm nucleus and continue the division,or could be stopped in the polar nuclei as male nuceleolus. |
| Key words: rey pollen,wheat breeding,parthenogenesis,cytology |
