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<p>Peanut shell is a key component of peanut pods, serving not only as a protective barrier against diseases and pests during seed development but also as a valuable by-product with applications in fertilizer and feed production. Despite its agronomic and economic importance, the genetic basis underlying shell-related traits remains largely unexplored. In this study, a genome-wide association study was conducted using 122 peanut germplasm accessions to investigate the genetic architecture of shell strength. By integrating phenotypic data from two environments with best linear unbiased prediction analysis, four stable quantitative trait loci were identified, and 11 candidate genes potentially involved in shell strength were detected. These findings provide new insights into the genetic control of peanut shell strength and offer valuable molecular targets for future marker-assisted selection breeding in peanut.</p>

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Identification of QTLs for Shell Strength in Cultivated Peanut (Arachis hypogaea L.) Through GWAS Analysis

  • 期刊论文

  • 发表日期：

    2026年3月30日

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  • Yunlai Yue,
  • Chengmeng Chen,
  • Junchen Yang,
  • Wen Chen,
  • Hui Zhang

摘要

Peanut shell is a key component of peanut pods, serving not only as a protective barrier against diseases and pests during seed development but also as a valuable by-product with applications in fertilizer and feed production. Despite its agronomic and economic importance, the genetic basis underlying shell-related traits remains largely unexplored. In this study, a genome-wide association study was conducted using 122 peanut germplasm accessions to investigate the genetic architecture of shell strength. By integrating phenotypic data from two environments with best linear unbiased prediction analysis, four stable quantitative trait loci were identified, and 11 candidate genes potentially involved in shell strength were detected. These findings provide new insights into the genetic control of peanut shell strength and offer valuable molecular targets for future marker-assisted selection breeding in peanut.