不同遗传群体在数量性状基因定位分析中的应用概述  

Genetic Populations for Quantitative Traits Analyzation

作　　者：汪夏超 栾悦 李春林[1] 童晓玲[1] 代方银[1] WANG Xia-chao;LUAN Yue;LI Chun-lin;TONG Xiao-ling;DAI Fang-yin;无(State Key Laboratory of Resource Insects,Southwest University,Chongqing 400715,China;Key Laboratory of Sericulture biology and Genetic breeding,Agricultural Ministry,College of Biotechnology,Southwest University,Chongqing 400715,China)

机构地区：[1]资源昆虫高效养殖与利用全国重点实验室(西南大学),重庆400716

出　　处：《蚕学通讯》2023年第2期14-24,共11页Newsletter of Sericultural Science

基　　金：国家自然科学基金项目(31830094,31902211);财政部和农业农村部:国家现代农业产业技术体系建设专项(CARS-18)。

摘　　要：在农业动植物中,许多重要的经济性状都是数量性状或具有明显的数量性状特征。因此,解析数量性状的遗传基础,对基于现代生物技术的农业育种及遗传改良具有十分重要的意义。数量性状的遗传效应主要由单基因效应(包括加性效应和显性效应)、上位性、杂种优势及环境效应等共同组成。为了解析这些遗传效应的分子基础,研究人员构建了大量的遗传定位群体,并开发了相应的分析模型。特定的定位分析群体是解析数量性状遗传方式的基础,其应用推动了该研究领域的发展。本文针对数量性状遗传定位群体的发展进行综述,并讨论今后的研究重点,以期能为该领域的研究及应用提供参考。In the planting industry and animal busbandry,many economic traits with great significance show obvious characteristic of quantitative traits.Therefore,understanding the genetic basis of quantitative traits play an increasingly important role in agriculture breeding modification.The components of genetic effects responsible for quantitative characters include single gene effect,such as additive effect and dominant effect,epistasis,heterosis and environmental effect.In order to explain the molecular genetic basis of these genetic components,researchers have developed a lot of populations to facilitate genetic analysis,and many analysis models based on these populations are proposed.These special populations are the genetic basis to investigate quantitative traits.Herein,we reviewed the development of these mapping populations and discussed the focal point of quantitative genetics study,and we wish this review could provide better reference for the research in the field.

关 键 词：农业动植物 数量性状 遗传效应 遗传定位群体 

分 类 号：Q343.17[生物学—遗传学]