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园艺学报 ›› 2025, Vol. 52 ›› Issue (1): 88-100.doi: 10.16420/j.issn.0513-353x.2023-0586

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

茄子全基因组SNP标记的开发

肖熙鸥*, 聂珩, 林文秋, 吴彩玉   

  1. 中国热带农业科学院南亚热带作物研究所,海南省热带园艺产品采后生理与保鲜重点实验室,湛江市热带作物遗传改良重点实验室,广东湛江 524091
  • 收稿日期:2024-07-22 修回日期:2024-10-15 出版日期:2025-01-25 发布日期:2025-01-18
  • 通讯作者:
  • 基金资助:
    广东省重点研发项目(2022B0202080003); 海南省重点研发项目(ZDYF2023XDNY041); 中国热带农业科学院“揭榜挂帅”项目(1630062022003)

Development of Whole-Genome SNP Markers of Eggplant

XIAO Xi’ou*, NIE Heng, LIN Wenqiu, WU Caiyu   

  1. Zhanjiang Key Laboratory of Tropical Crop Genetic Improvement,Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products,South Subtropical Crop Research Institution,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang,Guangdong 524091,China
  • Received:2024-07-22 Revised:2024-10-15 Published:2025-01-25 Online:2025-01-18
  • Contact: * E-mail:

摘要:

茄子(Solanum melongena L.)是中国重要的茄科蔬菜之一,其具有十分丰富的遗传多样性,对茄子种质资源进行精准评价是利用茄子种质资源的基础。利用40份茄子(Solanum melongena L.)种质资源的重测序数据,筛选了268个SNP位点用于五引物扩增受阻突变体系(penta-primer amplification refractory mutation system,PARMS)-SNP标记的开发,成功获得原创性的120个PARMS-SNP标记。利用这些标记对224份茄子高代自交系进行基因分型,并进一步进行群体结构、PCA主成分分析和遗传树分析。结果表明该224份材料可以分为两个组。同时根据多态性信息含量(polymorphic information content,PIC)值筛选了48个核心PARMS-SNP标记,并且构建了能够将224份材料进行区分的指纹图谱。

关键词: 茄子, SNP标记, 遗传多样性分析, 指纹图谱

Abstract:

Eggplant(Solanum melongena L.)is one of the important vegetables in the Solanaceae family in China. It has a very rich genetic diversity,and accurate evaluation of eggplant germplasm resources is the basis for using eggplant germplasm resources. In this study,the resequencing data of 40 eggplant germplasm resources were used to screen 268 SNPs for the development of PARMS-SNP (penta-primer amplification refractory mutation,five-prime amplification refractory mutation system) markers,and finally successfully obtained 120 original PARMS-SNP markers. Using 120 SNP markers for gene typing of 224 high-generation self-crossing lines of eggplant,the population structure,PCA (principal component analysis),and genetic tree results showed that the 224 materials could be divided into two groups. At the same time,48 core PARMS-SNP markers were selected based on the PIC(polymorphic information content)value,and a fingerprint map that can distinguish between 224 materials was constructed.

Key words: eggplant, SNP marker, genetic diversity, fingerprint