| 人工合成甘蓝型大粒材料H484花粉生活力及减数分裂观察 |
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| 引用本文： | 张颖,牛应泽.人工合成甘蓝型大粒材料H484花粉生活力及减数分裂观察[J].四川农业大学学报,2003,21(4):289-291. |
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| 作者姓名： | 张颖 牛应泽 |
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| 作者单位： | 四川农业大学,农学院,四川,雅安,625014 |
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| 基金项目： | 四川省教育厅油菜育种重点科技项目，四川省油菜育种攻关项目。 |
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| 摘 要： | 人工合成甘蓝型大粒材料H484千粒重平均6 21g,最高达7 81g,花粉生活力为82 4%。花粉母细胞减数分裂终变期染色体平均构型为1 13Ⅳ+2 33Ⅲ+12 63Ⅱ+1 20Ⅰ。减数分裂过程存在异常现象,二价体构型多样,有多价体和单价体出现。但从后期Ⅰ开始,绝大多数细胞表现正常。
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| 关 键 词： | 甘蓝型油菜 人工合成系 大粒 花粉育性 减数分裂 |
| 文章编号： | 1000-2650(2003)04-0289-03 |
| 修稿时间： | 2003年9月4日 |
Observations of the Pollen Fertility and the Meiosis of a Resynthesized Large Seed B.napus Line H484 |
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| ZHANG Ying,NIU Ying-ze.Observations of the Pollen Fertility and the Meiosis of a Resynthesized Large Seed B.napus Line H484[J].Journal of Sichuan Agricultural University,2003,21(4):289-291. |
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| Authors: | ZHANG Ying NIU Ying-ze |
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| Abstract: | The 1000-seed weight of H484 was on average 6.21?g, the maximum reached 7.81?g. It is a resynthesized large seed B.napus line. The pollen fertility of H484 was 82.4%. The mean chromosome paring configuration was 1.13Ⅳ+2.33Ⅲ+12.63Ⅱ+1.20Ⅰ. Abnormal behavours of chromosome were observed during meiosis, but normal divisions were observed in most cells after anaphase Ⅰ. |
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| Keywords: | B napus resynthesized line large seed pollen fertility miosis |
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