Genetic analysis of global faba bean diversity, agronomic traits and selection signatures.
Genetic analysis of global faba bean diversity, agronomic traits and selection signatures.
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DOI：
10.1007/s00122-023-04360-8
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发表时间：
2023-04-19
影响因子：
5.4
通讯作者：
Andersen, Stig Uggerhoj
中科院分区：
文献类型：
--
作者：
Skovbjerg, Cathrine Kiel;Angra, Deepti;Robertson-Shersby-Harvie, Tom;Kreplak, Jonathan;Keeble-Gagnere, Gabriel;Kaur, Sukhjiwan;Ecke, Wolfgang;Windhorst, Alex;Nielsen, Linda Kaergaard;Schiemann, Andrea;Knudsen, Jens;Gutierrez, Natalia;Tagkouli, Vasiliki;Fechete, Lavinia Ioana;Janss, Luc;Stougaard, Jens;Warsame, Ahmed;Alves, Sheila;Khazaei, Hamid;Link, Wolfgang;Torres, Ana Maria;O'Sullivan, Donal Martin;Andersen, Stig Uggerhoj
我们确定了标记性状协会的关键蚕豆农艺性状和基因组的选择在全球种质资源收集的签名。蚕豆（Vicia faba L.）是一种高蛋白豆类作物，具有可持续生产蛋白质的巨大潜力。然而，对性状多样性的遗传学基础知之甚少。在这项研究中，我们使用了21，345个高质量的SNP标记来遗传表征2678个蚕豆基因型。我们进行了全基因组关联的关键农艺性状的研究，使用7个亲本的MAGIC人口和检测238个显着的标记性状协会与12个农艺性状的重要性。其中65个在多种环境中保持稳定。使用来自52个国家的685个加入的非冗余多样性面板，我们确定了三个亚群区分的地理来源和33个基因组区域进行强大的多样化选择亚群之间。我们发现，SNP标记与北方和南方加入的分化解释了一个显着比例的农艺性状变异的七亲MAGIC人口，这表明，这些性状中的一些是在育种过程中选择的目标。我们的研究结果指向与重要农艺性状和选择相关的基因组区域，促进了基于蚕豆基因组的育种。 在线版本包含补充材料，可通过10.1007/s 00122 -023-04360-8获得。
We identified marker-trait associations for key faba bean agronomic traits and genomic signatures of selection within a global germplasm collection. Faba bean (Vicia faba L.) is a high-protein grain legume crop with great potential for sustainable protein production. However, little is known about the genetics underlying trait diversity. In this study, we used 21,345 high-quality SNP markers to genetically characterize 2678 faba bean genotypes. We performed genome-wide association studies of key agronomic traits using a seven-parent-MAGIC population and detected 238 significant marker-trait associations linked to 12 traits of agronomic importance. Sixty-five of these were stable across multiple environments. Using a non-redundant diversity panel of 685 accessions from 52 countries, we identified three subpopulations differentiated by geographical origin and 33 genomic regions subjected to strong diversifying selection between subpopulations. We found that SNP markers associated with the differentiation of northern and southern accessions explained a significant proportion of agronomic trait variance in the seven-parent-MAGIC population, suggesting that some of these traits were targets of selection during breeding. Our findings point to genomic regions associated with important agronomic traits and selection, facilitating faba bean genomics-based breeding. The online version contains supplementary material available at 10.1007/s00122-023-04360-8.
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11.4
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