四川农业大学学报 ›› 2003, Vol. 21 ›› Issue (04): 289-291.doi: 10.16036/j.issn.1000-2650.2003.04.004

• 研究论文 • 上一篇    下一篇

人工合成甘蓝型大粒材料H484花粉生活力及减数分裂观察

张颖, 牛应泽   

  1. 四川农业大学 农学院, 四川 雅安 625014
  • 收稿日期:2003-09-04 出版日期:2003-12-31 发布日期:2017-03-07
  • 基金资助:
    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。

Observations of the Pollen Fertility and the Meiosis of a Resynthesized Large Seed B. napus Line H484

ZHANG Ying, NIU Ying-ze   

  1. College of Agriculture, Sichuan Agricultural University, Yaan 625014, Sichuan, China
  • Received:2003-09-04 Online:2003-12-31 Published:2017-03-07

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。

关键词: 甘蓝型油菜, 人工合成系, 大粒, 花粉育性, 减数分裂

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.

Key words: B. napus, resynthesized line, large seed, pollen fertility, miosis

中图分类号: 

  • S565.4