干旱区研究 ›› 2016, Vol. 33 ›› Issue (1): 131-137.doi: 10.13866/j.azr.2016.01.16

• 植物生理 • 上一篇    下一篇

转MvP5CS基因棉花抗旱性及其育种价值评价

朱超1, 杨云尧2, 游朝1, 陈全家1, 曲延英1, 张桦1   

  1. 1.新疆农业大学农业生物技术重点实验室,新疆农业大学农学院,新疆 乌鲁木齐 830052;
    2.新疆阿克苏危险废物管理中心,新疆 阿克苏 843000
  • 收稿日期:2014-02-20 修回日期:2014-03-31 出版日期:2016-01-15 发布日期:2016-01-29
  • 作者简介:朱超(1986-),男,硕士,主要研究植物抗逆基因工程. E-mail: zhuchaoopen@163.com
  • 基金资助:
    新疆高技术研究发展项目(201211105);国家转基因重大专项(2011ZX005-004)资助

Analysis of Drought Resistance and Breeding Value Evaluation of Trans-MvP5CS Gene Cotton

ZHU Chao1, YANG Yun-yao2, YOU Zhao1, CHEN Quan-jia1, QU Yan-ying1, ZHANG Hua1   

  1. 1. Laboratory of Agricultural Biotechnology of Xinjiang Agricultural University, The Agronomy of Xinjiang Agricultural University,Urumqi 830052,Xinjiang,China;
    2. The Hazardous Waste Management Center of Aksu in Xinjiang,Akesu 843000,Xinjiang,China
  • Received:2014-02-20 Revised:2014-03-31 Published:2016-01-15 Online:2016-01-29

摘要: 利用花粉管通道法,获得的转Δ1-二氢吡咯-5-羧酸合成酶(Pyrroline-5-carboxylate synthetase,MvP5CS)高代棉花材料,比较田间干旱胁迫下转MvP5CS基因的T6代3个株系植株与受体棉花材料D5主要生理生化指标和农艺性状的差异。结果表明:从生理生化指标分析,转基因棉花比非转基因棉花植株更有利于在干旱胁迫条件下生长。从干旱胁迫后测量的农艺性状、产量性状和纤维品质的比较发现,转基因棉花植株的叶片颜色更绿;植株的主根更长,须根更多,更强壮;转基因棉花在单铃重、籽棉产量、皮棉产量、棉花衣分等性状明显优于非转基因棉花;纤维长度和强度略有增加,马克隆值降低,品质得到改善。

关键词: 转基因棉花, MvP5CS, 干旱胁迫, 生理生化指标, 农艺性状

Abstract: Using the method of pollen tube pathway, the high generation transferred MvP5CS (Pyrroline-5-carboxylate synthetase, MvP5CS) cotton material has been abtained.Comparing the main difference between the physiological and biochemical and difference in agronomic traits between the transfer MvP5CST6-generation cotton and non-genetically modified cotton under drought stress. The results show that: the transgenic cotton plants are more conducive to growth in the drought stress than non-transgenic cotton from analyzing the physiological and biochemical. After drought stress measurement of agronomic traits, yield traits and fiber quality: the color of the transgenic cotton leaves is greener and have longer taproot, stronger fibrous root. The transgenic cotton plants are significantly superior to the non-transgenic cotton in single boll weight, seed cotton yield, lint yield, fiber yield and other traits. Fiber length and strength increased slightly, incompatible micronaire is reduced, and quality gets improvement. This three transgenic cotton lines could provide new materials for the cotton resistance breeding.

Key words: transgenic cotton, MvP5CS, drought stress, physiological and biochemical indicators, agronomic traits