南疆陆地棉杂种F2的遗传分析及遗传主效聚类  

Genetic analysis of F2 generation of upland cotton hybrids and main effect clustering in Southern Xinjiang,China

作　　者：郭宏 于霁雯[2] 裴文锋 关永虎 李航 李长喜 刘金伟 王伟[1] 王宝全 梅拥军[1] GUO Hong;YU Ji-Wen;PEI Wen-Feng;GUAN Yong-Hu;LI Hang;LI Chang-Xi;LIU Jin-Wei;WANG Wei;WANG Bao-Quan;MEI Yong-Jun(College of Agriculture,Tarim University,Alar 843300,Xinjiang,China;State Key Laboratory of Cotton Biology/Institute of Cotton Research,Chinese Academy of Agricultural Sciences,Anyang 455000,Henan,China)

机构地区：[1]塔里木大学农学院,新疆阿拉尔843300 [2]中国农业科学院棉花研究所/棉花生物学国家重点实验室,河南安阳455000

出　　处：《作物学报》2023年第3期608-621,共14页Acta Agronomica Sinica

基　　金：国家自然科学基金项目“新疆南疆陆地棉产量和纤维品质性状QTS的全基因组挖掘”(31560408);棉花生物学国家重点实验室开放课题基金项目(CB2021A28)资助。

摘　　要：采用加性-显性及其与环境互作的遗传模型对298个陆地棉品种(系)及其884个F_(2)组合在新疆南疆阿拉尔垦区4个产量性状和5个纤维品质性状2年的资料进行遗传分析,并对亲本的加性效应和显性效应进行了聚类,以明确各类品种(系)的育种利用价值。结果表明,在南疆陆地棉“矮(0.8~1.0 m)、密(225,000~300,000株hm^(-2))、早、膜”高密度种植模式下,298个亲本的加性效应被分为12类。第2类的23个品种(系)产量(除衣分外)和纤维品质性状的加性效应较高,可通过这类品种(系)间杂交较易获得产量性状和纤维品质性状兼优的后代。第8类品种(系)的纤维品质性状的加性效应较高,第4类品种(系)的产量性状加性效应较高,通过2类品种间杂交可以获得产量性状和纤维品质性状互补的后代。298个亲本的显性效应被分成了9类。第8类包括8个品种(系),其产量性状和纤维品质性状(除马克隆值外)的显性效应较高,可作为综合利用产量性状和纤维品质性状杂种优势兼优的一类亲本。产量性状的显性效应平均值较高的是第8类,第3类的纤维品质性状的显性效应较高。Four yield traits and five fiber quality traits of their 298 varieties(lines)and their 884 F_(2)crosses of upland cotton were analyzed for their additive and dominance effects by a genetic model with additive,dominance,and their interaction effects with the environment in two successive years in Alar,South Xinjiang.To explore the potential of the breeding and utilization value of varieties,all varieties were clustered using cluster analysis of the R software package based on the additive and dominance effects.The results indicated that under the high-density planting mode of“low plant growth(plant height:0.8–1.0 m),high density(225,000–300,000 plant hm^(-2)),early ripe and film cover”in southern Xinjiang province,the additive effects of 298 parents were divided into 12 groups.The average additive effects of yield and fiber quality traits of 23 varieties(lines)in the sixth group were in a good level.It was easy to obtain offspring with both yield(except lint percentage)and fiber quality traits through crossing between these varieties(lines).The eighth group had a better average additive effect on fiber quality traits,while the fourth group had a higher average additive effect on yield traits.The progeny with complementary yield and fiber quality traits could be obtained by crossing these two kinds of varieties.The dominance effects of 298 parents were divided into nine groups.The eighth group included eight varieties(lines)and their yield traits and fiber quality traits(except micronaire)were all at a better average level in dominance effect,indicating that could be used as parents for hybrid utilization of both yield traits and fiber quality traits.The average dominance effect of yield traits was higher in the eighth category,and the average value of dominance effect of fiber quality traits in the third group was higher.

关 键 词：陆地棉 F_(2) 产量性状 纤维品质性状 加性-显性模型 聚类分析 

分 类 号：S562[农业科学—作物学]