首页|大豆开花和成熟期显性E1等位基因关联分析

大豆开花和成熟期显性E1等位基因关联分析

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  • NETL
  • NSTL
  • 万方数据
  • 维普
[目的]深入解析大豆开花期和成熟期的遗传基础,发掘控制性状的重要基因组区间,为分子标记辅助选择育种和新基因克隆提供依据.[方法]以224份携带显性E1等位基因的大豆种质为试验材料,在4个种植环境下调查表型数据,用R-mrMLM软件包中的6种多位点关联分析模型对大豆开花和成熟期进行全基因组关联分析.[结果]共检测到91个开花期和83个成熟期QTNs(quantitative trait nucleotides),其中6个开花期和10个成熟期QTNs能在多环境中检测到,这些环境稳定QTNs分布于15个区间大小在90～490 kb的单倍型(基因组)内,并新检测到6个基因组区间.[结论]显性E1等位基因背景下大豆开花和成熟期的QTN构成复杂,位于5号染色体39.52～40.01 Mb等15个基因组区间是该群体中控制大豆开花期或成熟期的重要位点.
Association analysis of the dominant E1 alleles during soybean flowering and maturity time
[Objective]The objectives of this study are to dissect the genetic basis of soybean flowering and maturity time and to identify genomic regions that can be used for molecular marker-assisted selection(MAS)and novel gene cloning.[Methods]224 soybeans with dominant E1 alleles were planted in four en-vironments to investigate phenotypic data.Six multi-locus association analysis models from the R-mrMLM software package were employed for a genome-wide association analysis(GWAS)on soybean flowering and maturity time.[Results]91 flowering and 83 maturation QTNs(quantitative trait nucleotides)were detected by combining six multi-loci GWAS methods.Among them,6 flowering and 10 maturation QTNs were detected in various environments.These stable QTNs were distributed in 15 haplotype blocks(ge-nomic regions)with an interval size of 90-490 kb.6 out of 15 genomic regions were newly detected.[Conclusion]The QTN composition of soybean flowering and maturity time at the dominant E1 gene back-ground is complex.15 genomic regions,including 39.52-40.01 Mb on chromosome 5,are loci control-ling soybean flowering or maturity time in this population.

soybeanflowering timematurity timeGWASgenomic regions

张普、贾世豪、莎珍、杨植雅、欧侨欣、曹永策

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延安大学生命科学学院/陕西省红枣重点实验室,陕西延安 716000

大豆 开花期 成熟期 全基因组关联分析 基因组区间

国家自然科学基金项目陕西省自然科学基础研究计划项目陕西省科协青年人才托举计划项目延安大学校级科研计划项目陕西省大学生创新创业训练计划项目陕西省大学生创新创业训练计划项目

321604692020JQ-79520200205YDY2020-30S202310719041S202210719092

2024

10.7606/j.issn.1000-4025.20230435

西北植物学报
西北农林科技大学,陕西省植物学会

西北植物学报

CSTPCD北大核心
影响因子：1.031
ISSN：1000-4025
年,卷(期)：2024.44(4)
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