摘要
高粱作为重要的粮食、饲料和能源作物,在全球农业中占有重要地位。随着我国经济的发展,对于高粱的需求量日益增加,因此选育高产、优质的高粱品种成为推动产业发展的关键。数量性状基因座(Quantitative Trait Locus,QTL)定位是遗传学中的一种重要技术,用于定位和鉴定控制数量性状的基因,利用QTL定位的方法可挖掘控制高粱农艺性状和品质性状的相关基因。本文系统综述了高粱株高、分蘖等农艺性状以及单宁、淀粉、蛋白质等品质性状QTL定位的研究现状。目前,该领域仍存在环境因素影响大、标记密度过低、表型性状准确度差、基因间互作复杂等问题。在此基础上,本文对未来高粱QTL研究的方向进行展望,以期为高粱基因克隆、基因定位、基因图谱构建、分子标记辅助选择育种等研究工作提供理论参考。
Sorghum,as an important food,feed,and energy crop,occupies an important position in global agriculture.With the development of China’s economy,the demand for sorghum is constantly increasing.Therefore,breeding high-yield and highquality varieties is crucial for the development of the sorghum industry.QTL gene mapping is an important technique in genetics used to locate and identify genes that control quantitative traits,and therefor to explore related genes that control agronomic and quality traits in sorghum.This article reviews the current research status of QTL mapping for agronomic traits such as sorghum plant height and tillering,as well as quality traits such as tannin,starch,and protein.At present,QTL research on the main agronomic and quality traits of sorghum still faces problems such as environmental factors,low marker density,poor accuracy of phenotypic traits,and gene interactions.This article provides a prospect for the future of QTL research in sorghum,and provides theoretical guidance for researchers engaged in sorghum gene cloning,gene mapping,establishment of gene maps,and molecular marker assisted selection breeding.
作者
罗峰
杨庭金
孙安栋
Luo Feng;Yang Tingjin;Sun Andong(Tianjin Key Laboratory of Intelligent Breeding for Major Crops,College of Agronomy and Resource Environment,Tianjin Agricultural University,Tianjin 300392,China)
出处
《天津农学院学报》
2025年第6期83-89,共7页
Journal of Tianjin Agricultural University
基金
天津市优秀科技特派员项目(23ZYCGSN00150)
天津市主要农作物智能育种重点实验室青年开放课题(KLIBMC2307)。
