The western Mediterranean region provided the founder population of domesticated narrow-leafed lupin
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© 2018, The Author(s). Key message: 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. Abstract: 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.
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Exploring the genetic and adaptive diversity of a pan-Mediterranean crop wild relative: narrow-leafed lupinMousavi-Derazmahalleh, M.; Bayer, P.; Nevado, B.; Hurgobin, B.; Filatov, D.; Kilian, A.; Kamphuis, Lars; Singh, Karam; Berger, J.; Hane, James; Edwards, D.; Erskine, W.; Nelson, M. (2018)© 2018 The Author(s). Most grain crops suffer from a narrow genetic base, which limits their potential for adapting to new challenges such as increased stresses associated with climate change. Plant breeders are returning ...
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The first gene-based map of Lupinus angustifolius L.-location of domestication genes and conserved synteny with Medicago truncatulaNelson, M.; Phan, H.; Ellwood, Simon; Moolhuijzen, P.; Hane, J.; Williams, Ang; O'Lone, C.; Fosu-Nyarko, J.; Scobie, M.; Cakir, M.; Jones, M.; Bellgard, M.; Ksiarkiewicz, M.; Wolko, B.; Barker, S.; Oliver, Richard; Cowling, W. (2006)We report the first gene-based linkage map of Lupinus angustifolius (narrow-leafed lupin) and its comparison to the partially sequenced genome of Medicago truncatula. The map comprises 382 loci in 20 major linkage groups, ...