辣椒果色全基因组关联分析
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1.遵义市农业科学研究院;2.<3.sup>4.遵义市农业科学研究院<5./sup>6.西南科技大学环境与资源学院<7.遵义职业技术学院现代农业系<8.贵州省农业科学院辣椒研究所<

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贵州省科技计划项目(黔科合基础 [2018] 1184);贵州省科技计划项目(黔科合基础 [2020] 1Y117);贵州省科技支撑计划项目(黔科合支撑 [2019] 2413);贵州省科技支撑计划项目(黔科合支撑 [2021]一般204);遵义市科技计划项目(遵市科合HZ字 [2021] 8号);遵义市优秀青年科技创新人才培养项目(遵优青科 [2021] 2号)


Genome-Wide Association Study for Fruit Color in Pepper
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Science and Technology Plan Project of Guizhou Province (Qian Kehe Foundation [2018] 1184),Science and Technology Plan Project of Guizhou Province (Qian Kehe Foundation [2020] 1Y117),Science and Technology Support Plan Project of Guizhou Province (Qian Kehe Support [2019] 2413),Science and Technology Support Plan Project of Guizhou Province (Qian Kehe Support [2021] General 204),Science and Technology Plan Project of Zunyi City (Zunshi Kehe HZ Word [2021] No.8),Excellent Young Scientific and Technological Innovation Talents Training Project of Zunyi City (Zunyou Qingke [2021] No.2)

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    摘要:

    本研究利用全基因组关联分析(GWAS)挖掘辣椒果色显著关联的SΝP 位点及候选基因。以195份一年生辣椒构成的自然群体为试验材料,分别在2020年和2021年调查辣椒果色(青果色和熟果色)性状,通过DNA测序和SNP变异检测,质控得到的高质量SNP位点用于GWAS分析。结果表明:两年间辣椒果色性状表型完全一致,性状遗传稳定;GWAS分析后共筛选出8个与辣椒果色相关的SNPs;共注释到31个基因,预测呼吸爆发氧化酶同源蛋白A(Capana01g000138)、类异黄酮2′-羟化酶(Capana04g000616、Capana04g000617、Capana04g000618、Capana04g000619、Capana04g000620、Capana04g000621和Capana04g000622)和F-box-like/WD重复类蛋白TBL1Y(Capana04g000624)可能与辣椒果色相关。这些结果将为开展辣椒果色相关分子辅助育种提供参考依据。

    Abstract:

    In this study, the genome-wide association scanning (GWAS) was used to identify SNPs and candidate genes that significantly associated with the fruit color in pepper. By taking the natural population composed of 195 annual peppers, the fruit color including immature fruit color and mature fruit color were investigated in two calendar years (2020 and 2021). Through the DNA sequencing and SNP variation detection, the high-quality SNPs filtrated by quality control were used for GWAS. The results showed that the phenotypes at pepper fruit color traits collected from the two calendar years were completely consistent, indicating the inheritance of the traits. GWAS analysis revealed eight SNPs associating with the pepper fruit color, enabling the annotation of 31 candidate genes. It includes several strong candidates including the respiratory burst oxidase homologous protein A (capana01g000138), isoflavone 2''-hydroxylase-like (capana04g000616, capana04g000617, capana04g000618, capana04g000619, capana04g000620, capana04g000621 and capana04g000622) and F-box-like/WD repeat-containing protein TBL1Y-like (Capana04g000624). These results will provide a reference for molecular assisted breeding of fruit color in pepper.

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历史
  • 收稿日期:2022-10-10
  • 最后修改日期:2022-12-06
  • 录用日期:2022-12-20
  • 在线发布日期: 2022-12-28
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