华北农学报 ›› 2021, Vol. 36 ›› Issue (1): 95-101. doi: 10.7668/hbnxb.20191423

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• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

陆地棉早熟性、产量、纤维品质性状相关性及其遗传基础分析

贾晓昀1,2, 王寒涛1, 魏恒玲1, 喻树迅1   

  1. 1. 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;
    2. 河北省农林科学院 粮油作物研究所, 河北省作物遗传育种实验室, 河北 石家庄 050035
  • 收稿日期:2020-11-27 出版日期:2021-02-28
  • 通讯作者: 喻树迅(1953-),男,湖北麻城人,研究员,博士,主要从事棉花遗传改良与育种研究。
  • 作者简介:贾晓昀(1987-),男,河北赤城人,助理研究员,博士,主要从事棉花生物技术与育种研究。
  • 基金资助:
    棉花产业体系(CARS-15-06);河北省农林科学院创新工程项目(2019-4-09-06)

Correlation and Genetic Analysis for Cotton Earliness, Yield and Fiber Quality Traits

JIA Xiaoyun1,2, WANG Hantao1, WEI Hengling1, YU Shuxun1   

  1. 1. Institute of Cotton Research of Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Anyang 455000, China;
    2. Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Hebei Laboratory of Crop Genetics and Breeding, Shijiazhuang 050035, China
  • Received:2020-11-27 Published:2021-02-28

摘要: 为研究陆地棉早熟性、产量、纤维品质之间相互影响的分子遗传基础,以中棉所36为母本、G2005为父本构建重组自交系群体,连续6 a调查群体早熟性、产量、纤维品质相关的13个性状,分析3类性状之间的相关性,并结合QTL定位结果分析其遗传基础。结果表明,早熟性较好的材料,其铃重较低、纤维品质相对较差;纤维品质较好的材料,其产量性状相对较差;共检测到494个QTL位点,发现68个QTL重叠区段至少影响两类性状,包括11个同时影响早熟性、产量和纤维品质性状的区段,11个同时影响早熟性和产量性状的区段,39个同时影响早熟性和品质性状的区段,7个同时影响产量和纤维品质性状的区段,仅有24个区段内QTL增效基因来源相同。此外,共检测到99个多环境上位性QTL,其中45个位点与加性QTL重叠。

关键词: 陆地棉, 早熟性, 产量, 纤维品质, 相关性分析, 遗传解析

Abstract: In order to study the molecular genetic basis of the interaction among the earliness, yield and fiber quality of upland cotton, a Recombinant inbred line(RIL) population was constructed with CCRI36 as the female parent and G2005 as the male parent. For 6 consecutive years, 13 characters related to the earliness, yield and fiber quality of the RIL population were investigated, and the correlation among the three types of characters was analyzed. The genetic basis was analyzed based on the results of QTL mapping. The results showed that the materials with better earliness had lower boll weight and poorer fiber quality;the materials with better fiber quality had a relatively poor yield character. A total of 494 QTL were detected, 68 QTL overlap regions affected at least two types of characters at the same time, including 11 regions that affected earliness, yield and fiber quality, 11 regions that affected earliness and yield, 39 regions that affected earliness and fiber quality, and 7 regions that affected yield and fiber quality. Only 24 of the 68 QTL-overlap regions had the same additive effect direction. In addition, 99 multi environment epistatic QTLs were detected, 45 of which overlapped with additive QTLs.

Key words: Gossypium hirsutum L., Earliness, Yield, Fiber quality, Correlation analysis, Genetic analysis

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引用本文

贾晓昀, 王寒涛, 魏恒玲, 喻树迅. 陆地棉早熟性、产量、纤维品质性状相关性及其遗传基础分析[J]. 华北农学报, 2021, 36(1): 95-101. doi: 10.7668/hbnxb.20191423.

JIA Xiaoyun, WANG Hantao, WEI Hengling, YU Shuxun. Correlation and Genetic Analysis for Cotton Earliness, Yield and Fiber Quality Traits[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(1): 95-101. doi: 10.7668/hbnxb.20191423.

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