生命科学研究2017，Vol.21Issue(2)：144-148,173,6.DOI:10.16605/j.cnki.1007-7847.2017.02.009
水稻三系不育系育性与温度关系研究
Association Between Temperature and Fertility of CMS Lines in Rice (Oryza sativa L.)
摘要
Abstract
The types and ratio of pollen of widely-used CMS lines were surveyed and analyzed under the field conditions with split seedings in Changsha,Hunan.The results showed that the pollen types and ratio of the tested CMS lines fluctuated according to the temperature conditions.Four CMS lines including Jin23A,T98A,FengyuanA,Gang46A were recorded completely sterile under high temperature conditions,Long398A,Longxiang634A,4302A,YouIA and D62A showed a little fertile with stainable pollen rates of 0.02％～1.65％,and the other three CMS lines were fertile with stainable pollen rates of 0.05％～14.56％.The positive correlation was significant between the daily mean temperature 13～18 days before initial heading and the stained pollen percentage in CMS lines TianfengA,WufengA and YuetaiA,and the critical temperatures of the fertility alteration were 26.48 ℃,27.11 ℃ and 27.30 ℃ in the three CMS lines,respectively.The results also indicated that the fertility sensitive period of the CMS lines induced by high temperature was from the final phase of pistil and stamen formation to meiotic division of young panicles.关键词
水稻/三系不育系/育性稳定性/临界温度/敏感时期Key words
rice (Oryza sativa L.)/cytoplasmic male sterility (CMS) lines/fertility stability/critical temperature/sensitive period分类
农业科技引用本文复制引用
顾华琴,向志攀,刘赛,毛丹丹,戴小军,梁满中,陈良碧..水稻三系不育系育性与温度关系研究[J].生命科学研究,2017,21(2):144-148,173,6.基金项目
湖南省生态学一级重点学科资助项目(0713) （0713）
国家自然科学基金资助项目(3147430) （3147430）
湖南省生物发育工程与新产品研发协同创新中心(20134486) （20134486）
