中国农业科学 ›› 2015, Vol. 48 ›› Issue (1): 23-32.doi: 10.3864/j.issn.0578-1752.2015.01.03

• 作物遗传育种·种质资源 • 上一篇    下一篇

春大豆种子田间劣变性和劣变抗性的差异蛋白质组学研究

宋利茹1,王爽1,牛娟1,马洪雨1,舒英杰1,杨艳1,顾卫红2,麻浩1   

  1. 1南京农业大学农学院作物遗传与种质创新国家重点实验室,南京 210095
    2上海市农业科学院园艺研究所,上海 201106
  • 收稿日期:2014-06-11 出版日期:2015-01-01 发布日期:2015-01-01
  • 通讯作者: 麻浩,Tel:025-84395324;E-mail:Lq-ncsi@njau.edu.cn
  • 作者简介:宋利茹,E-mail:songliru2006@126.com
  • 基金资助:
    国家自然科学基金(30971840,31371711)、教育部高等学校博士学科点专项科研基金(20120097110025)

Differentially Proteomics Analysis of Pre-Harvest Seed Deterioration and Deterioration Resistance in Spring Soybean

Li-ru1, WANG Shuang1, NIU Juan1, MA Hong-yu1, SHU Ying-jie1, YANG Yan1, GU Wei-hong2, MA Hao1   

  1. 1State Key Laboratory of Crop Genetics & Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing 210095
    2Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106
  • Received:2014-06-11 Online:2015-01-01 Published:2015-01-01

摘要: 【目的】南方春大豆种子在生理成熟(R6或R7期)过程中易受高温高湿胁迫影响常会发生种子田间劣变,已经严重制约了中国南方春大豆生产和应用的发展。应用比较蛋白质组学技术,在蛋白表达水平上揭示高温高湿下南方春大豆种子田间劣变性和劣变抗性的机制,为遗传育种改良和新品种选育奠定种质基础。【方法】利用抗种子田间劣变种质湘豆3号和不抗种质宁镇1号为材料,在种子发育到生理成熟期时模拟田间高温高湿胁迫处理,运用双向电泳(2-DE)和MALDI-TOF/TOF鉴定技术研究春大豆种子蛋白质表达谱的变化。【结果】高温高湿胁迫处理和对照条件下(1、5、10、16和24 h),湘豆3号和宁镇1号大豆种子可溶性蛋白的每张2-DE重复胶上都可以检测到700多个可重复蛋白点,50个蛋白质点在处理与对照之间表达量上存在显著差异。其中有33个差异蛋白点经质谱分析成功鉴定;功能分类表明,这些成功鉴定的差异蛋白分别涉及细胞修复及防御(9%)、氧化还原平衡(12%)、蛋白合成(3%)、能量代谢(15%)、转运过程(15%)以及贮藏蛋白(31%)等代谢途径和细胞过程。此外,还有5个差异蛋白为未知功能蛋白。【结论】高温高湿胁迫下,抗性种质湘豆3号较不抗种质宁镇1号具有较强的抗氧化和细胞修复及防御能力,可能是其具有较强的抗种子田间劣变性的关键原因。

关键词: 春大豆种子, 种子田间劣变, 劣变抗性, 高温高湿, 蛋白质组学

Abstract: 【Objective】 Soybean seed is susceptible to high temperature and humidity (HTH) stress resulting in pre-harvest deterioration during its development and maturation (R6 or R7), which limits the production and utilization of soybean in south China. The aim of the present study is to reveal the pre-harvest seed deterioration and deterioration resistance mechanism of spring soybean under HTH stress at proteomic level, thus laying a foundation for breeding new cultivars.【Method】When the deterioration-sensitive cultivar Ningzhen No.1 and deterioration-tolerant cultivar Xiangdou No.3 developed to physiological period (R7), their plants were treated under HTH stress and control for 1, 5, 10, 16 and 24 h, respectively. The extracted proteins from the developing seed of treatment and control were analyzed by two-dimensional electrophoresis (2-DE), and the differentially expressed proteins were identified by MALDI-TOF/TOF. 【Result】Approximately 700 protein spots were detected on each 2-DE gel. Of them, 50 were found to be significantly changed in abundance, with 33 being successfully identified by MALDI-TOF/TOF. The identified differentially expressed proteins were involved in cell rescue and defense (9%), redox homeostasis (12%), protein synthesis (3%), energy metabolism (15%), transport pathway (15%), protein destination and storage (31%). Moreover, the function of 5 identified proteins is unknown. 【Conclusion】Pre-harvest deterioration-resistant cultivar Xiangdou No.3 possessed the greater ability of ROS scavenging and cell rescue and defense than deterioration-sensitive cultivar Ningzhen No.1 under HTH tress, which may be the major reasons why it is more deterioration-resistant than the latter.

Key words: spring soybean seed, pre-harvest seed deterioration, deterioration resistance, high temperature and humidity, proteomics