首页|基于KASP标记的厚皮甜瓜种质资源遗传多样性分析及指纹图谱构建

基于KASP标记的厚皮甜瓜种质资源遗传多样性分析及指纹图谱构建

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本研究通过竞争性等位基因特异性PCR(KASP)标记对厚皮甜瓜核心种质资源进行多态性分析,以期筛选厚皮甜瓜种质资源的单核苷酸多态性(SNP)标记,应用于厚皮甜瓜种质资源及品种的纯度鉴定和指纹图谱构建.从公布的 297 份甜瓜重测序数据中挑选 95 份厚皮甜瓜重测序数据进行SNP标记开发,对课题组的 20 份核心厚皮甜瓜种质资源进行多态性分析.结果显示,共计开发 50 个SNP标记,分布在甜瓜 12 条染色体中.50 个SNP标记中,有 23 个SNP标记能够将本研究中的 19 份核心厚皮甜瓜种质资源进行分型,其中 Marker33、Marker38、Marker23、Marker36、Marker47、Marker42 6 个标记能够完全区分 19 份甜瓜种质资源,本研究结果可以为后期厚皮甜瓜种质资源和品种纯度鉴定提供有利的支撑.
Analysis of genetic diversity and construction of fingerprints for core germplasms of muskmelon based on KASP markers
In this study,we analyzed the polymorphism of core resources of muskmelon by competitive allele-specific PCR(KASP)markers,with a view to screening single nucleotide polymorphism(SNP)markers of muskmelon resources,which could be applied to the purity identification and fingerprint construction of the parents and hybrids of muskmelon.From the pub-lished 297 melon resequencing data,95 muskmelon resequencing data were selected for SNP marker development,and polymor-phism analysis was performed on 20 core muskmelon germplasm resources of the subject group.The results showed that a total of 50 SNP markers were developed,and distributed on 12 chromosomes of muskmelon.Among the 50 SNP markers,23 SNP markers could be used to genotype 19 core muskmelon resources.Six markers including Marker33,Marker38,Marker23,Marker36,Marker47 and Marker42 could completely distinguish 19 muskmelon germplasm resources.The results of this study provide favorable support for the identification of muskmelon resources and variety purity in the later stage.

muskmelonsingle nucleotide poly-morphism(SNP)competitive allele-specific PCR(KASP)genetic diversityfingerprint

孙国胜、张昌伟、山溪、许丁帆、戴忠良、张振超、马志虎

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江苏丘陵地区镇江农业科学研究所,江苏 镇江 212400

南京农业大学,江苏 南京 210095

厚皮甜瓜 单核苷酸多态性 竞争性等位基因特异性PCR 遗传多样性 指纹图谱

2024

江苏农业学报
江苏省农业科学院

江苏农业学报

CSTPCD北大核心
影响因子:1.093
ISSN:1000-4440
年,卷(期):2024.40(12)