Scholarlink

<p>Peanut (<i>Arachis hypogaea</i>&#xa0;<i>L.</i>) is a globally important oilseed and food crop, with yield and quality largely determined by pod-related traits such as seed weight (SW), hull weight (HW), pod volume (PV), and shelling percentage (SHP). To elucidate the genetic basis of these traits, we conducted a genome-wide association study (GWAS) using a diverse population of 104 peanut varieties and a high-density significant single nucleotide polymorphism (SNP) dataset. We identified 40 significant SNPs associated with pod-related traits, including 12 SNPs for seed weight, 12 for hull weight, 10 for shelling percentage, and 6 for pod volume. Notably, loci associated with seed weight and hull weight were identical, with four co-localized SNPs (AX-176804770 and AX-177639117 as intergenic; AX-147254843 and AX-176810349 as genic) linked to multiple traits across years, suggesting potential regulatory roles through gene or intergenic interactions. From these loci, 264 candidate genes were identified, with 84, 84, 76, and 20 linked to seed weight, hull weight, shelling percentage, and pod volume, respectively. These associations are based on genomic co-localization, highlighting the need for further functional validation to confirm their roles in trait regulation.&#xa0;Key candidate genes, including&#xa0;<i>HFD3GT</i>,&#xa0;<i>USFH3V</i>,&#xa0;<i>PMOQ6H</i>, and&#xa0;<i>MDK0AG</i>, were prioritized based on their proximity to significant SNPs and functional annotations, suggesting their potential roles in regulating pod architecture.&#xa0;These findings provide valuable insights into the genetic architecture of pod-related traits in peanut and highlight potential targets for molecular breeding to improve the yield and quality.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Unraveling the Genetic Architecture of Peanut Pod-Related Traits Via Genome-Wide Association Study

  • 期刊论文

  • 发表日期：

    2025年2月14日

查看全文
  • Junchen Yang,
  • Yunlai Yue,
  • Chengmeng Chen,
  • Wen Chen,
  • Yong Chen,
  • Hui Zhang

摘要

Peanut (Arachis hypogaea L.) is a globally important oilseed and food crop, with yield and quality largely determined by pod-related traits such as seed weight (SW), hull weight (HW), pod volume (PV), and shelling percentage (SHP). To elucidate the genetic basis of these traits, we conducted a genome-wide association study (GWAS) using a diverse population of 104 peanut varieties and a high-density significant single nucleotide polymorphism (SNP) dataset. We identified 40 significant SNPs associated with pod-related traits, including 12 SNPs for seed weight, 12 for hull weight, 10 for shelling percentage, and 6 for pod volume. Notably, loci associated with seed weight and hull weight were identical, with four co-localized SNPs (AX-176804770 and AX-177639117 as intergenic; AX-147254843 and AX-176810349 as genic) linked to multiple traits across years, suggesting potential regulatory roles through gene or intergenic interactions. From these loci, 264 candidate genes were identified, with 84, 84, 76, and 20 linked to seed weight, hull weight, shelling percentage, and pod volume, respectively. These associations are based on genomic co-localization, highlighting the need for further functional validation to confirm their roles in trait regulation. Key candidate genes, including HFD3GT, USFH3V, PMOQ6H, and MDK0AG, were prioritized based on their proximity to significant SNPs and functional annotations, suggesting their potential roles in regulating pod architecture. These findings provide valuable insights into the genetic architecture of pod-related traits in peanut and highlight potential targets for molecular breeding to improve the yield and quality.