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棉花学报 ›› 2016, Vol. 28 ›› Issue (6): 628-634.doi: 10.11963/issn.1002-7807.201606013

• 研究与进展 • 上一篇    下一篇

RRM2和ACO2-E6基因棉花冠层特征和光合特性与产量形成的关系

刘小玲1(),徐道青1,王维1,雒珺瑜2,陈敏1,阚画春1,刘华3,崔金杰2,唐雪明3,郑曙峰1,*()   

  1. 1. 安徽省农业科学院棉花研究所/国家棉花改良中心安庆分中心,安徽 安庆 246003
    2. 中国农业科学院棉花研究所,河南 安阳 455000
    3. 上海市农业科学院生物技术研究所/农业部转基因植物环境安全监督检验测试中心,上海 201106
  • 收稿日期:2015-11-25 出版日期:2016-11-15 发布日期:2016-11-15
  • 通讯作者: 郑曙峰 E-mail:lxlfjj@126.com;zhengsf@188.com
  • 作者简介:刘小玲(1984―),女,硕士研究生,lxlfjj@126.com
  • 基金资助:
    转基因生物新品种培育重大专项(2013ZX08011-002);安徽省农业科学院科技创新团队建设项目“棉花轻简化机械化关键技术创新团队”(13C0707)

Relationship of Canopy Properties and Photosynthetic Characteristics with Construction of Lint Yield in Transgenic RRM2 and ACO2-E6 Cotton

Xiaoling Liu1(),Daoqing Xu1,Wei Wang1,Junyu Luo2,Min Chen1,Huachun Kan1,Hua Liu3,Jinjie Cui2,Xueming Tang3,Shufeng Zheng1,*()   

  1. 1. Cotton Research Institute, Anhui Academy of Agricultural Science/National Cotton Breeding Center, Anqing Branch, Anqing, Anhui 246003, China
    2. Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, China
    3. Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences/Supervision, Inspection and Test Center for Environmental Safety of GM Crops of MOA, Shanghai 201106, China
  • Received:2015-11-25 Online:2016-11-15 Published:2016-11-15
  • Contact: Shufeng Zheng E-mail:lxlfjj@126.com;zhengsf@188.com

摘要: 为探明转基因棉花产量形成关键期的生理机制,2014―2015年以转RRM2基因棉花及其亲本中棉所12(CK1)、转ACO2-E6基因棉花及其亲本中棉所24(CK2)为材料,研究冠层特征、光合特性等与转基因棉花产量形成的关系,分析比较转基因棉花与亲本的生长发育、产量及其构成的差异。结果表明:转RRM2基因棉花的铃重、籽棉产量、皮棉产量、纤维上半部平均长度和断裂比强度均高于或显著高于中棉所12。转ACO2-E6基因棉花的衣分、籽棉产量、皮棉产量、纤维上半部平均长度和断裂比强度均高于或显著高于中棉所24。转基因棉花的籽棉产量与盛铃期的叶面积指数、光系统Ⅱ光化学量子产量、光系统Ⅱ最大光化学效率和可溶性总糖含量等分别呈显著的线性相关。转基因棉花的叶面积指数和可溶性总糖含量于产量形成关键期均高于或显著高于各自对照,且表现出较优的冠层结构以及较合理的源库比。

关键词: 叶面积; SPAD值; 可溶性总糖含量; 产量; 纤维品质; 棉花; RRM2基因; ACO2-E6基因

Abstract:

To explore the physiological mechanisms in the key stages of lint yield development in transgenic cotton, we conducted two years of field experiments to evaluate the cotton canopy and physiological properties. We compared growth, yield and yield components of new genotypes of transgenic RRM2 and ACO2-E6 cottons with those of their conventional parental materials, CCRI 12 (CK1) and CCRI 24 (CK2), respectively, in 2014 and 2015. The boll weight, seed cotton yield, lint yield, upper-half mean length and breaking tenacity of transgenic RRM2 cotton exceeded or significantly exceeded those of CCRI 12. The lint percent, seed cotton yield, lint yield, upper-half mean length and fiber strength of transgenic ACO2-E6 cotton exceeded or significantly exceeded those of CCRI 24. The seed cotton yields of different transgenic cottons showed significant linear correlations with leaf area indexes, photosystem II quantum yields, photosystem II maximum photochemical efficiencies and total soluble sugar contents. Leaf area indexes and total soluble contents of transgenic cottons in the key stages of yield development exceeded or significantly exceeded those of CCRI 12 and CCRI 24, respectively. Transgenic cotton presented stronger, more vigorous growth, better canopy structures and more reasonable 'source-link' ratios.

Key words: leaf area index; SPAD value; total soluble content; lint yield; fiber quality; transgenic RRM2 cotton; transgenic ACO2-E6 cotton