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首页> 外文期刊>Acta Horticulturae >Genomic and EST Microsatellite Loci Development and Use in Olive: Molecular Tools for Genetic Mapping and Association Studies
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Genomic and EST Microsatellite Loci Development and Use in Olive: Molecular Tools for Genetic Mapping and Association Studies

机译:橄榄中的基因组和EST微卫星基因座的开发和使用:遗传图谱和关联研究的分子工具

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Identification of QTLs (quantitative trait loci) related to agronomic traits based on segregating population and/or on a collection of unrelated genotypes needs the use of molecular markers. Here, we aimed to develop and characterize genomic and expressed sequence tag (EST)-derived microsatellite markers in olive (Olea europaea L.) and assess their Mendelian inheritance on the pseudo-Fi population derived from the cross 'Oliviere' x 'Arbequina'. Based on an enriched genomic DNA library constructed onthe French cultivar 'Oliviere', we designed 211 primer pairs among the total 584 identified SSR loci. Following 454 sequencing of cDNA fragments obtained on the Slovenian cultivar Tstrska belica', we designed 113 primer pairs among 976 identified as EST-SSR loci. We screened these SSR markers for their informativeness for the saturation of the previously published linkage map based on the same cross, designed for bearing regularity study (in Montpellier, France). A set of 59 genomic and 40 expressed SSR loci were selected to genotype the 147 offspring. Twenty four (25.53%) SSRs show a Mendelian distortion segregation at P<0.05. From genotyped SSRs, 85 (90%), 64 (68%) and 94 (100%) SSR loci are now available for completing respectively 'Oliviere' and 'Arbequina', and the integrated maps published earlier.
机译:基于种群分离和/或不相关基因型的收集来鉴定与农艺性状相关的QTL(定量性状基因座)需要使用分子标记。在这里,我们的目的是开发和表征橄榄(Olea europaea L.)中基因组和表达序列标签(EST)衍生的微卫星标记,并评估它们对源自杂交'Oliviere'x'Arbequina'的假Fi种群的孟德尔遗传。 。基于在法国品种'Oliviere'上构建的丰富基因组DNA文库,我们在584个已鉴定的SSR基因座中设计了211个引物对。在对斯洛文尼亚栽培种Tstrska belica'上获得的cDNA片段进行454测序后,我们在976个被鉴定为EST-SSR基因座的引物中设计了113个引物对。我们筛选了这些SSR标记,以了解先前发布的基于同一十字的链接图的饱和度的信息性,该图旨在进行轴承规律性研究(法国蒙彼利埃)。选择一组59个基因组和40个表达的SSR基因座以对147个后代进行基因分型。 24个(25.53%)SSR在P <0.05时显示孟德尔变形偏析。从基因型SSR中,现在可以使用85个(90%),64个(68%)和94个(100%)SSR基因座分别完成“ Oliviere”和“ Arbequina”,以及先前发布的整合图。

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