贵州农业科学2026，Vol.54Issue(7)：27-33,7.DOI:10.3969/j.issn.1001-3601.2026.07.005
香禾糯米饭质构特性QTL定位分析
QTL Mapping of Texture Characteristics of Kam Sweet Rice
摘要
Abstract
[Objective]QTLs regulating rice texture characteristics of RIL populations of Goudang 3(a kam sweet rice variety)and Huazhan(a conventional indica rice variety)were identified to provide a theoretical basis for breeding high-quality edible rice.[Method]The phenotypic data based on rice texture characteristics of Goudang 3 and Huazhan RIL populations in 2023 and 2024 were used to conduct QTL mapping of rice texture characteristics by an inclusive composite interval mapping.[Result]A total of 36 detected QTLs regulating rice texture characteristics including 3 for hardness,1 for adhesiveness,7 for springiness,7 for chewiness,7 for gumminess,9 for cohesiveness,and 2 for resilience were distributed on chromosomes 1,2,3,4,5,6,7,9,11,and 12,respectively.Their LOD value and contribution rate were 2.507-3.456 and 3.740%-9.237%,separately.7 QTLs of qSN-6-1,qSN-6-2,qSN-6-3,qCN-3-1,qCN-3-2,qCON-3-3 and qCON-7 were overlapped with the reported QTL loci.[Conclusion]36 QTLs regulating rice texture characteristics are detected from Goudang 3 and Huazhan RIL populations.Among them,7 QTLs are overlapped with the reported QTL loci,and other QTL loci will be new target spots for follow-up map-based cloning.关键词
贵州禾/香禾糯/苟当3号/华占/QTL/米饭质构特性/水稻/重组自交系Key words
Guizhou He/Kam sweet rice/Goudang 3/Huazhan/QTL/rice texture characteristics/rice/recom-binant inbred line分类
农业科技引用本文复制引用
龙武华,吴朝昕,徐海峰,姜雪,吴娴,王倩,刘雪薇,李文扣,朱速松..香禾糯米饭质构特性QTL定位分析[J].贵州农业科学,2026,54(7):27-33,7.基金项目
贵州省科技计划项目(黔科合支撑[2019]2304号)(黔科合基础-ZK[2023]一般179)(黔科合支撑[2022]重点028) （黔科合支撑[2019]2304号）
贵州省育种科研基础平台创新能力建设(黔科合服企[2022]014) （黔科合服企[2022]014）
喀斯特山区特色粮油作物生物育种部省共建重点实验室科研能力条件建设(黔科合服企[2024]003-2) （黔科合服企[2024]003-2）
黔农科院种质资源[2023]11号 （）
