【摘要】 低温胁迫是水稻生产的主要限制因子,可发生在水稻的不同生长发育时期。探明水稻耐冷性分子遗传基础,开展水稻耐冷分子育种是解决水稻低温冷害最有效的方法。本文收集了国内外已发表的56篇文献的256个水稻耐冷QTL的定位信息,并把其中44篇文献的192个耐冷QTL整合定位在一个分子图谱上,进而比较不同研究在同一发育时期和不同发育时期鉴定的耐冷QTL的染色体位置关系。比较分析结果表明,水稻耐冷性在同一发育时期可受多个QTL控制;在不同发育时期分别受不同的QTL控制;然而,不同发育时期亦有共同的耐冷QTL。根据比较分析,探讨了今后水稻耐冷遗传研究和分子育种的策略。更多还原

【Abstract】 Low temperature injury on rice occurs in many countries across the world. It is a global disaster in rice production. Cold stress may occur at different developmental stages in rice production. Understanding the genetic basis of cold tolerance and performing molecular breeding are considered as the most effective way to address this problem. In this review, we have collected the information of 256 QTLs for cold tolerance at different developmental stages in rice from 56 published papers. Among them, 192 cold tolerant QTLs from 44 papers were integrated into a molecular map. Comparative analysis based on the chromosomal locations of the cold tolerant QTLs suggests that the QTLs for cold tolerance are different among different developmental stages, and diverse for a given developmental stage. However, some overlap intervals associated with cold tolerance for different developmental stages in different studies were identified. Based on these results, strategies on genetic analysis of cold tolerance and molecular breeding for cold tolerance in rice were deep discussed.更多还原