The western Mediterranean region provided the founder population of domesticated narrow-leafed lupin.
The western Mediterranean region provided the founder population of domesticated narrow-leafed lupin.
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DOI：
10.1007/s00122-018-3171-x
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发表时间：
2018-12
期刊：
影响因子：
--
通讯作者：
Nelson MN
中科院分区：
文献类型：
--
作者：
Mousavi-Derazmahalleh M;Nevado B;Bayer PE;Filatov DA;Hane JK;Edwards D;Erskine W;Nelson MN
这项研究表明，地中海西部提供了创始人人口驯化窄叶羽扇豆和窄叶羽扇豆驯化过程中的遗传多样性显着下降。植物在驯化过程中的进化历史深刻地塑造了今天作物的基因组结构和遗传多样性。下一代测序技术的进步为了解小作物的基因组进化提供了前所未有的机会，这些作物构成了大多数植物驯化。以231个野生和驯化的狭叶羽扇豆（Lupinus angustifolius L.）使用多样性阵列技术对加入物进行测序基因分型。应用系统发育分析、全基因组差异分析和连锁不平衡分析等方法，对窄叶羽扇豆驯化的创始群体及其基因组的全基因组效应进行了研究。我们发现野生西地中海人口驯化窄叶羽扇豆的创始人。驯化与驯化加入的基因组多样性减少了近三倍相比，他们的野生亲戚。选择性扫描分析发现驯化位点周围没有明显的选择足迹。一项全基因组关联研究确定了与荚果开裂相关的单核苷酸多态性标记。对窄叶羽扇豆驯化的基因组后果的新理解沿着在这里开发的分子标记工具将有助于植物育种者更有效地获得野生遗传多样性以进行作物改良。本文的在线版本（10.1007/s 00122 -018-3171-x）包含补充材料，可供授权用户使用。
This study revealed that the western Mediterranean provided the founder population for domesticated narrow-leafed lupin and that genetic diversity decreased significantly during narrow-leafed lupin domestication. The evolutionary history of plants during domestication profoundly shaped the genome structure and genetic diversity of today’s crops. Advances in next-generation sequencing technologies allow unprecedented opportunities to understand genome evolution in minor crops, which constitute the majority of plant domestications. A diverse set of 231 wild and domesticated narrow-leafed lupin (Lupinus angustifolius L.) accessions were subjected to genotyping-by-sequencing using diversity arrays technology. Phylogenetic, genome-wide divergence and linkage disequilibrium analyses were applied to identify the founder population of domesticated narrow-leafed lupin and the genome-wide effect of domestication on its genome. We found wild western Mediterranean population as the founder of domesticated narrow-leafed lupin. Domestication was associated with an almost threefold reduction in genome diversity in domesticated accessions compared to their wild relatives. Selective sweep analysis identified no significant footprints of selection around domestication loci. A genome-wide association study identified single nucleotide polymorphism markers associated with pod dehiscence. This new understanding of the genomic consequences of narrow-leafed lupin domestication along with molecular marker tools developed here will assist plant breeders more effectively access wild genetic diversity for crop improvement. The online version of this article (10.1007/s00122-018-3171-x) contains supplementary material, which is available to authorized users.
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