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首页> 外文期刊>Genetic Resources and Crop Evolution >Quantitative trait loci for seed dormancy in wild barley (Hordeum spontaneum C. Koch).
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Quantitative trait loci for seed dormancy in wild barley (Hordeum spontaneum C. Koch).

机译：野生大麦种子休眠的数量性状基因座（Sortanum spontaneum C. Koch）。

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A quantitative trait locus analysis was carried out to unravel the genetic basis of dormancy in wild barley (Hordeum spontaneum) from Israel. Two accessions, Ashkelon and Mehola, from divergent environments were crossed to produce a mapping population. A linkage map was produced from the F2 population, and F4 seeds were used for germination experiments. Five quantitative trait loci (QTL) were detected for dormancy across the different germination experiments. These QTL were found on chromosomes 1, 2, 5, 6 and 7. The variation explained by each QTL varied between 8 and 25%. Ashkelon alleles increased the germination except for the QTL on chromosome 5. Three out of these five QTL co-locate with QTL found earlier in cultivated barley crosses, although this does not necessarily imply that they would be the same loci. The level of dormancy is much higher in wild barley than in cultivated barley and wild barley may have alleles that have not yet been utilised in breeding for optimally dormant barley..
机译：进行了定量性状基因座分析，以揭示来自以色列的野生大麦（Hordeum spontaneum）休眠的遗传基础。来自不同环境的两个种，Ashkelon和Mehola被杂交以产生作图种群。从F2种群产生连锁图，并将F4种子用于发芽实验。在不同的发芽实验中，检测到五个数量性状基因座（QTL）处于休眠状态。这些QTL位于1、2、5、6和7号染色体上。每个QTL解释的变异范围为8％至25％。除5号染色体上的QTL外，Ashkelon等位基因增加了发芽率，这五个QTL中的三个与较早在栽培的大麦杂交中发现的QTL共同定位，尽管这不一定意味着它们将是同一基因座。野生大麦的休眠水平比栽培大麦的休眠水平高得多，并且野生大麦可能具有尚未用于最佳休眠大麦的育种的等位基因。

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