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首页> 美国卫生研究院文献>Genes >Genome-Wide Association Study Reveals a Genomic Region Associated with Mite-Recruitment Phenotypes in the Domesticated Grapevine (Vitis vinifera)
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Genome-Wide Association Study Reveals a Genomic Region Associated with Mite-Recruitment Phenotypes in the Domesticated Grapevine (Vitis vinifera)

机译：基因组 - 范围协会研究揭示了驯化葡萄牙（血管血管）中患有螨虫细胞的基因组区域

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摘要

Indirect defenses are plant phenotypes that reduce damage by attracting natural enemies of plant pests and pathogens to leaves. Despite their economic and ecological importance, few studies have investigated the genetic underpinnings of indirect defense phenotypes. Here, we present a genome-wide association study of five phenotypes previously determined to increase populations of beneficial (fungivorous and predacious) mites on grape leaves (genus Vitis): leaf bristles, leaf hairs, and the size, density, and depth of leaf domatia. Using a common garden genetic panel of 399 V. vinifera cultivars, we tested for genetic associations of these phenotypes using previously obtained genotyping data from the Vitis9kSNP array. We found one single nucleotide polymorphism (SNP) significantly associated with domatia density. This SNP (Chr5:1160194) is near two genes of interest: Importin Alpha Isoform 1 (VIT_205s0077g01440), involved in downy mildew resistance, and GATA Transcription Factor 8 (VIT_205s0077g01450), involved in leaf shape development. Our findings are among the first to examine the genomic regions associated with ecologically important plant traits that facilitate interactions with beneficial mites, and suggest promising candidate genes for breeding and genetic editing to increase naturally occurring predator-based defenses in grapevines.
机译：间接防御是植物表型，可通过吸引植物害虫和病原体的天敌来减少损伤。尽管他们经济和生态的重要性，但很少有研究已经调查了间接防御表型的遗传支撑。在这里，我们提出了一种先前确定的五种表型的基因组 - 范围基因研究，以增加葡萄叶（属植物属）：叶刷毛，叶毛和叶子尺寸，密度和叶子厚度domatia。使用399 V.Vinifera品种的共同庭院遗传面板，我们测试了这些表型的遗传关联，所述表型使用来自Vitis9ksnp阵列的基因分型数据。我们发现一种与Domatia密度显着相关的单一核苷酸多态性（SNP）。该SNP（CHR5：1160194）接近两个感兴趣的基因：Importin alpha同种型1（VIT_205S0077G01440），涉及柔软的霉菌电阻和Gata转录因子8（VIT_205S0077G01450），涉及叶形开发。我们的研究结果是第一次检查与生态重要植物特征相关的基因组区域，促进与有益螨虫的相互作用，并提出了用于繁殖和遗传编辑的有希望的候选基因，以增加葡萄树中的天然存在的捕食者的防御。

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