摘要
【目的】通过对小麦重组自交系群体及其亲本为材料,利用已构建的高密度遗传图谱对该群体株高及穗长进行QTL定位。【方法】利用包含有110个株系的重组自交系群体,利用已构建的高密度遗传连锁图谱对小麦株高和穗长进行了QTL定位。【结果】两个环境下共检测到12个穗长相关QTL位点和8个株高相关的QTL位点。其中,穗长的1个位点(Qsl-1A),株高的3个位点(Qph-1A,Qph-5A-1和Qph-6A-2)在两个环境中都被检测到。【结论】研究为小麦的分子改良育种提供了重要的分子标记信息。
[Objective] The objective of this study was to identify QTLs for plant height and spike length based on a genetic map with high density and a RIL population. [Method] A recombinant intercross lines population contain 110 lines were used to perform QTL analysis based on a high density genetic map. [Results] A total of 12 QTLs for spike length were identified, and two of them were expressed in both investigated environments, and 6 were accounted for over 10% phenotypic variation. A total of 8 QTLs for plant height were identified, and 3 of them were expressed in both investigated environments, and two loci were accounted for over 10% phenotypic variation. [Conclusion] Taken together, All loci in present study are very important to spike morphology and yield improvement.
作者
杨林
欧俊
陈源
YANG Lin OU Jun CHENG Yuan(Chengdu Agricultural College, Agriculture and Horticulture Department, Wenjiang 611130, Sichuan, China)
出处
《四川农业大学学报》
CSCD
北大核心
2016年第4期397-401,共5页
Journal of Sichuan Agricultural University
基金
四川省高等职业院校省级重点专业(作物生产技术)建设项目(510101)
关键词
小麦
株高
穗长
QTL
wheat: plant height: spike length: QTL