湖北农业科学 ›› 2018, Vol. 57 ›› Issue (18): 106-110.doi: 10.14088/j.cnki.issn0439-8114.2018.18.027

• 生物工程 • 上一篇    下一篇

陆地棉微管蛋白基因Ghtub12转棉花研究

沈浙南, 沈秋平, 彭求, 吕尊富, 李飞飞   

  1. 浙江农林大学农业与食品科学学院,杭州 311300
  • 收稿日期:2018-04-27 出版日期:2018-09-25 发布日期:2020-03-27
  • 通讯作者: 李飞飞,副教授,主要从事植物基因工程研究,(电话)13758270492(电子信箱)lifei-fei@163.com。
  • 作者简介:沈浙南(1997-),男(土家族),浙江杭州人,在读本科生,研究方向为农学,(电话)15968867159(电子信箱)szn15968867159@163.com。
  • 基金资助:
    国家自然科学基金青年基金项目(31401461); 2017年浙江农林大学学生科研训练项目(113-2013200035); 2018浙江省大学生科技创新活动计划暨新苗人才计划项目(2018R412001)

Study on Micro-tubulin Gene Ghtub12 to Cotton in Gossypium hirsutum

SHEN Zhe-nan, SHEN Qiu-ping, PENG Qiu, LYU Zun-fu, LI Fei-fei   

  1. College of Agriculture,Zhejiang A&F University,Hangzhou 311300,Zhejiang,China
  • Received:2018-04-27 Online:2018-09-25 Published:2020-03-27

摘要: 棉花(Gossypium spp.)是重要的纤维作物,棉花微管蛋白基因在棉纤维发育过程中特异优势表达,影响棉纤维品质。微管蛋白基因Ghtub12Tubulin基因家族中的一员,在棉纤维发育中机理尚不明确。以陆地棉(Gossypium hirsutum Linn.)R15下胚轴为受体,以0.5 mg/L Basta为筛选标记,用农杆菌介导法将Ghtub12遗传转化棉花。100个胚轴段经过抗性愈伤组织诱导,得到143块愈伤组织,出愈率为71.50%;再经过3次抗性筛选获得126块愈伤组织,对愈伤组织进行PCR检测,102块检测出bar基因,即抗性愈伤组织转化率为81.00%;其中有45块愈伤组织诱导产生胚性愈伤组织,分化率为44.12%。胚性愈伤组织进行成苗培养得60株苗,对其进行PCR检测,56株扩增出条带,阳性率为93.3%。获得了转微管蛋白基因Ghtub12棉花,为进一步研究Ghtub12基因在棉花中的可能机理和作用提供了试验材料。

关键词: 陆地棉(Gossypium hirsutum Linn.)R15, 陆地棉微管蛋白基因Ghtub12, 农杆菌介导法, 下胚轴

Abstract: Cotton is the world's important fiber crop, cotton tubulin gene in cotton fiber development process specific advantages of expression, affecting cotton fiber quality. Tubulin gene Ghtub12 as a member of the tubulin gene family, the mechanism of cotton fiber development is not clear. In this experiment, R15 hypocotyls were used as acceptor, and 0.5 mg/L Basta was used as a screening marker. Agrobacterium tumefaciens-mediated transformation method was used to study the genetic transformation. 100 calli were induced by resistance callus, and 143 callus were obtained after 1 month. The recovery rate was 71.50%. After 3 times, the callus was obtained and the callus was obtained. The transformation rate was 81.00%. Among them, 45 callus induced embryogenic callus, the differentiation rate was 44.12%. Embryogenic calli were divided into 60 seedlings. The positive rate was 93.3%. The transgenic tubulin gene Ghtub12 was obtained, which provided experimental material for further study on the possible mechanism and effect of Ghtub12 gene in cotton.

Key words: Gossypium hirsutum Linn. R15, Gossypium tubulin gene Ghtub12, agrobacterium-mediated method, hypocotyls

中图分类号: