华北农学报 ›› 2026, Vol. 41 ›› Issue (5): 51-62. doi: 10.7668/hbnxb.20196953

所属专题: 甜瓜; 生物技术; 蔬菜专题;

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

薄皮甜瓜KASP标记开发及指纹图谱的构建

李可心1, 刘浚嵩2, 赵伟3, 刘莉4, 罗聚悦1, 张腾3, 华德平1   

  1. 1 天津大学 医学部生命科学学院, 天津 300072
    2 山东农业大学 植物保护学院, 山东 泰安 271018
    3 天津德瑞特种业有限公司, 天津 300384
    4 天津大学 环境科学与工程学院, 天津 300072
  • 出版日期:2026-11-04
  • 通讯作者:
    张 腾(1987—),女,天津人,农艺师,博士,主要从事甜瓜育种与分子标记研究。华德平(1981—),男,山东济南人,副教授,博士,硕士生导师,主要从事植物分子生物学研究。
    张 腾(1987—),女,天津人,农艺师,博士,主要从事甜瓜育种与分子标记研究。华德平(1981—),男,山东济南人,副教授,博士,硕士生导师,主要从事植物分子生物学研究。
  • 作者简介:

    李可心(2001—),女,天津人,硕士,主要从事分子生物学研究。

  • 基金资助:
    天津市科技计划项目(23ZXZYSN00070)

Development of KASP Markers and Construction of Fingerprint Database in Oriental Melon

LI Kexin1, LIU Junsong2, ZHAO Wei3, LIU Li4, LUO Juyue1, ZHANG Teng3, HUA Deping1   

  1. 1 School of Life Sciences, Tianjin University, Tianjin 300072, China
    2 College of Plant Protection, Shandong Agricultural University, Taian 271018, China
    3 Tianjin Derit Seeds Company Limited, Tianjin 300384, China
    4 School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
  • Published:2026-11-04

摘要:

为促进薄皮甜瓜种质资源鉴定与分子育种应用,基于27份薄皮甜瓜和5份厚皮甜瓜核心育种材料的重测序数据,筛选高多态性 SNP位点,开发并验证了一套高质量 KASP分子标记。针对1 195个候选SNPs,在甜瓜的12条染色体上均匀设计60个KASP标记,经32份甜瓜材料验证,其中42个标记分型成功,成功率为70.0%。进一步筛选出28个分型清晰、稳定性高的最优标记,用于从分子水平分析甜瓜育种材料的群体遗传结构,聚类分析结果与传统形态学分类高度吻合。利用最优标记构建27份薄皮甜瓜以及5份厚皮甜瓜育种材料的数字指纹图谱,并将各材料的指纹信息编码为二维码,便于快速鉴定与管理。综上,所开发的KASP标记能够对27份薄皮甜瓜核心育种材料进行高效区分,具有较高的特异性和实用性,为薄皮甜瓜种质资源评价、品种鉴别以及分子标记辅助育种提供可靠技术支撑。

关键词: 薄皮甜瓜, KASP 标记, 指纹图谱, SNP, 分子育种, 聚类分析

Abstract:

To facilitate germplasm identification and molecular breeding applications in Oriental melon(Cucumis melo ssp.agrestis),this study screened highly polymorphic SNP(single nucleotide polymorphism)loci based on resequencing data from 27 C.melo ssp.agrestis and 5 C.melo ssp.melo core breeding accessions,and developed a set of high-quality KASP(Kompetitive Allele-Specific PCR)markers.A total of 60 KASP markers were uniformly designed across 12 chromosomes from 1 195 candidate SNPs.Validation using 32 breeding accessions revealed that 42 markers(70.0%)successfully generated clear and reliable genotyping clusters.Furthermore,28 optimal markers with distinct clustering and high stability were selected.Cluster analysis was highly consistent with traditional morphological classification,validating the population genetic structure of melon breeding materials at the molecular level.Using the optimal marker set,a digital fingerprint database was constructed for the 27 C.melo ssp.agrestis and 5 C.melo ssp.melo breeding accessions,and the fingerprint information of each accession was encoded into a QR code to facilitate rapid identification and management.In conclusion,the developed KASP marker system can efficiently distinguish the 27 C.melo ssp.agrestis core breeding accessions with high specificity and practicality,providing reliable technical support for future germplasm evaluation,variety identification,and marker-assisted breeding in C.melo ssp.agrestis.

Key words: Thin-skinned melon, KASP marker, Fingerprint, SNP, Molecular breeding, Cluster analysis

中图分类号: 

引用本文

李可心, 刘浚嵩, 赵伟, 刘莉, 罗聚悦, 张腾, 华德平. 薄皮甜瓜KASP标记开发及指纹图谱的构建[J]. 华北农学报, 2026, 41(5): 51-62. doi: 10.7668/hbnxb.20196953.

LI Kexin, LIU Junsong, ZHAO Wei, LIU Li, LUO Juyue, ZHANG Teng, HUA Deping. Development of KASP Markers and Construction of Fingerprint Database in Oriental Melon[J]. Acta Agriculturae Boreali-Sinica, 2026, 41(5): 51-62. doi: 10.7668/hbnxb.20196953.