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首页> 外文期刊>Genomics >Multi-locus genome-wide association studies reveal novel genomic regions associated with vegetative stage salt tolerance in bread wheat (Triticum aestivum L.)
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Multi-locus genome-wide association studies reveal novel genomic regions associated with vegetative stage salt tolerance in bread wheat (Triticum aestivum L.)

机译：多基因座基因组 - 范围协会研究揭示了与面包小麦（Triticum Aestivum L）相关的新型基因组区域。

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Soil salinity is one of the typical abiotic stresses affecting sustainability of wheat production worldwide. In the present study, we performed a 35?K SNP genotyping assay on association panel of 135 diverse wheat genotypes evaluated for vegetative stage tolerance in hydroponics. Association analyses using five multi-locus GWAS models revealed 42 reliable QTNs for 10 salt tolerance associated traits. Among these 42 reliable QTNs, 9, 17 and 16 QTNs were associated with physiological, biomass and shoot ionic traits respectively. Novel major QTNs were identified for chlorophyll content, shoot fresh weight, seedling total biomass, Na+ and K+ concentration and Na+/K+ ratio in shoots. Further, 10 major QTNs showed significant effect on the corresponding salt tolerance traits. Gene ontology analysis of the associated genomic regions identified 58 candidate genes. The information generated in this study will be of potential value for improvement of salt tolerance of wheat cultivars using marker assisted selection.
机译：土壤盐度是影响全球小麦生产可持续性的典型非生物胁迫之一。在本研究中，我们在135个不同小麦基因型的关联面板上进行了35？K SNP基因分型测定，评估了水培中的植物阶段耐受性耐受性阶段耐受性。使用五个多基因座GWAS模型的关联分析显示了42种可靠的QTN，用于10个耐盐性相关性状。在这些42中，可靠的QTN，9,17和16 QTN分别与生理学，生物质和芽离子性状相关。鉴定新型的QTNS用于叶绿素含量，拍摄鲜重，幼苗总生物质，Na +和K +浓度和芽中的Na + / K +比。此外，10个主要QTN对相应的耐盐性具有显着影响。相关基因组区域的基因本体分析鉴定了58个候选基因。本研究中产生的信息将具有使用标记辅助选择改善小麦品种耐盐性的潜在价值。

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