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甜瓜KASP标记开发及指纹图谱构建

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为丰富甜瓜分子标记类型,并为后续甜瓜种质、品种及种子纯度鉴定提供简便、高效的检测方法,分别在甜瓜每条染色体上挑选6个核心SNP位点,共72个标记,通过KASP技术对11份甜瓜种质进行基因分型,确定了 45对具有较好分型效果的标记,标记设计成功率为62.5%.从45对分型较好的标记中挑选25个基因型分簇集中的最优标记,对31份甜瓜种质进行基因分型,明确了各种质在25个SNP位点的多态性,通过聚类分析,分成了 3组,并构建了 31份甜瓜种质的指纹图谱,为甜瓜种质资源利用和种子纯度鉴定提供了参考.
Development of melon KASP markers and construction of fingerprints
To enrich spectrum of molecular markers in melon and offer a straightforward and efficient protocol for the sub-sequent identification of melon germplasm,variety,and seed purity,this investigation identified six pivotal single-nucleo-tide polymorphism(SNP)loci distributed across the melon genome,encompassing a total of 72 markers.Utilizing the KASP(kompetitive allele-specific PCR)assay,these markers were employed to genotype 11 melon germplasm acces-sions,resulting in the identification of 45 marker pairs exhibiting superior typing performance.The success rate of marker design reached 62.5%,and from these 45 pairs,the most optimal markers for the 25 identified genetic clusters were select-ed,and the polymorphisms of 31 muskmelon germplasm were divided into 3 groups,and the fingerprints of 31 muskmel-on germplasm were constructed to provide reference for the utilization of muskmelon germplasm resources and seed puri-ty identification.

MelonKASPSNPFingerprints

肖玉珍、张瑞青、张跃星、代雪、张勇、王中元、于蓉、侯尹婕、张显、魏春华

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西北农林科技大学园艺学院 陕西杨凌 712100

宁夏农林科学院园艺研究所 银川 750000

甜瓜 KASP SNP 指纹图谱

2024

中国瓜菜
中国农业科学院郑州果树研究所

中国瓜菜

北大核心
影响因子:0.452
ISSN:1673-2871
年,卷(期):2024.37(9)