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首页> 外文期刊>European journal of nutrition >Genetic diversity and phenetic analysis in wheat (Triticum turgidum subsp durum and Triticum aestivum subsp aestivum) landraces based on SNP markers
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Genetic diversity and phenetic analysis in wheat (Triticum turgidum subsp durum and Triticum aestivum subsp aestivum) landraces based on SNP markers

机译：基于SNP标记的小麦（Triticum Turgivum subsp Durum和Triticum aestivum亚群Aestivum）的遗传多样性和娱乐分析

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Durum (Triticum turgidum L. subsp. durum (Desf.) Husn.) and common (Triticum aestivum L. subsp. aestivum) wheat landraces are mixtures of mostly homozygous genotypes characterized by broad adaptations to local environmental conditions. In this study, we estimated the genetic diversity in three old durum landraces ("San Pasquale", "Grano Ricco" and "Dauno III") and a common wheat landrace ("Bianchetta") by using phenotypic traits and Single Nucleotide Polymorphism (SNP) markers. Large phenotypic variation was found for yield components and grain-quality traits. The landraces "Grano Ricco" and "Dauno III" showed high grain yield per spike, kernel weight and grain protein content, suggesting that they could be a source of favorable alleles. SNP analysis showed a higher diversity within landraces in "Bianchetta" (9.5 %) and "Grano Ricco" (9.4 %) than in "Dauno III" (3.2 %) and "San Pasquale" (1.5 %). Comparing marker profiles, different haplotypes were found within each landrace indicating a genetic structure based on a mixture of genotypes. The phenetic analysis underlined four distinct clusters corresponding to the four wheat landraces examined. The phenetic tree showed that "Dauno III" and "San Pasquale" were strongly related with cultivars derived from Mediterranean durum landraces and genetically distant from "Grano Ricco" which clustered with 'Russello' and 'Timilia', two durum cultivars originated from southern Italy durum landraces.
机译：杜伦姆（Triticum Turgidum L. subsp。杜伦姆（DESF）HESN。）和常见（Triticum aestivum L. subsp。aestivum）小麦样力是主要是纯合基因型的混合物，其特征在于广泛适应局部环境条件。在这项研究中，我们估计了三个古老的杜伦兰地板（“San Pasquale”，“Grano Ricco”和“Dauno III”）中的遗传多样性，并使用表型特征和单核苷酸多态性（SNP标记。发现了大量的表型变异用于产量组分和晶粒质量性状。实地“Grano Ricco”和“Dauno III”显示了每穗的高籽粒产量，籽粒重量和谷物蛋白质含量，表明它们可能是有利等位基因的来源。 SNP分析在“Bianchetta”（9.5％）和“Grano Ricco”（9.4％）中显示出更高的多样性，而不是“Dauno III”（3.2％）和“SAN PASQUALE”（1.5％）。比较标记型材，在每个兰德内发现不同的单倍型，指示基于基因型的混合物的遗传结构。易素分析强调了对应于检查的四个小麦样力的不同簇。苯基树表明，“Dauno III”和“SAN PASQUALE”与来自地中海杜兰姆地铁的品种强烈相关，并从与“russello”和'米米亚聚集的Grano Ricco'遗传遥远，这两个杜伦兰源于意大利南部杜兰姆地体。

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