中国农业科学 ›› 2005, Vol. 38 ›› Issue (01): 122-127 .

• 园艺 • 上一篇    下一篇

CYP86MF反义基因转化获得青花菜雄性不育植株

黄科,曹家树,余小林,叶纨芝,卢钢,向洵   

  1. 浙江大学蔬菜研究所
  • 收稿日期:2004-01-30 修回日期:2004-05-24 出版日期:2005-01-10 发布日期:2005-01-10
  • 通讯作者: 曹家树

Male-Sterile Plants Induced by Anti-gene CYP86MF in Brassica oleracea var. italica

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  1. 浙江大学蔬菜研究所
  • Received:2004-01-30 Revised:2004-05-24 Online:2005-01-10 Published:2005-01-10

摘要: 通过根癌农杆菌LBA4404(含质粒反义CYP86MF基因片段)介导转化青花菜(Brassica oleracea L.var. italica Plenck)下胚轴,经卡那霉素选择压下连续选择、扩繁和生根培养,获得了青花菜转基因植株。经PCR、Southern blot、Northern blot检测证明,CYP86MF基因已经整合至转基因植株染色体中。经花器官观察,转基因植株中有雄蕊发育不良、花粉不萌发的植株。转基因植株自交不能结实,用转基因植株花粉对正常植株进行人工授粉,不能正常结实,表明转基因植株花粉是不育的。用正常花粉对转基因不育植株进行人工授粉,转基因不育植株能正常结实,表明转基因不育植株的雌性器官发育正常,其不育性与CYP86MF基因在转基因植株中的表达有关。

关键词: 青花菜, Brassica oleracea, CYP86MF, 反义基因, 雄性不育

Abstract: An anti-gene CYP86MF was introduced into hypocotyls of broccoli(Brassica oleracea L.var. italica Plenck) with Agrobacterium tumefaciens, and transgenic plants were obtained by kanamycin selection. It was proved that anti-CYP86MF was integrated with chromosome of transgenic plant, according to the results of PCR, Southern blot, Northern blot. Plants with hypogenetic stamina or ungerminated pollen were observed. The transgenic male-sterile plants could set seeds if artificially pollinated with normal pollen, so the pistil of male-sterile plant was normal, and its sterility was induced by anti-CYP86MF.

Key words: Brassica oleracea, Broccoli, Anti-gene, Male sterility