Arid Zone Research ›› 2016, Vol. 33 ›› Issue (1): 131-137.doi: 10.13866/j.azr.2016.01.16

• Plant Physiology • Previous Articles     Next Articles

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 Online:2016-01-15 Published:2016-01-29

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