https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2005, Vol. 32 ›› Issue (4): 695-697.

• 研究报告 • 上一篇    下一篇

结球甘蓝1号和4号染色体双三体及其初级三体的分离与鉴定

祝海燕;张成合;申书兴;王东平;郭丽娟
  

  1. (河北农业大学园艺学院, 保定 071001)
  • 收稿日期:2004-09-13 修回日期:2005-02-21 出版日期:2005-08-25 发布日期:2005-08-25

Identification of the Double Trisomic and Its Primary Trisomics in Cabbage

Zhu Haiyan;Zhang Chenghe;Shen Shuxing;Wang Dongping;Guo Lijuan
  

  1. (College of Horticulture, Hebei Agricultural University, Baoding 071001, China)
  • Received:2004-09-13 Revised:2005-02-21 Online:2005-08-25 Published:2005-08-25

摘要: 在结球甘蓝同源三倍体与二倍体杂交子代中, 获得了1个2n + 2的非整倍体植株, 经细胞学鉴定和核型分析, 确认该2n + 2植株为1号和4号双三体, 并由此进一步分离鉴定出了1号和4号两个初级三体。1号初级三体的主要特征是植株矮小, 株高仅为正常二倍体的1 /3左右; 4号初级三体的主要特征是花期提早, 较正常二倍体提早约14 d。1号和4号两个初级三体n + 1雌配子的传递率分别为8.89%和11.54%。

关键词: 甘蓝, 双三体, 初级三体

Abstract: An aneuploid plant with 2n + 2 = 20 chromosomes was obtained from progenies of 3 ×2x in cabbage. By meiosis observation and karyotype analysis, the aneuploid plant was showed a double trisomics with extra chromosomes No.1 and No.4 which come from this double trisomics, the primary trisomic-1 and primary trisomic-4 were obtained. The two primary trisomics were obviously different in plant hight and anthesis. The transfer rate of n + 1 female gameteswas 8.89% in trisomic21 and 11.54% in trisomic-4.

Key words: Cabbage, Double trisomics, Primary trisomic

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