Gene pools and the genetic architecture of domesticated cowpea

dc.creatorBao-Lam Huynh
dc.creatorClose, T.J.
dc.creatorRoberts, P.A.
dc.creatorZhiqiu Hu
dc.creatorWanamaker, S.
dc.creatorLucas, M.R.
dc.creatorChiulele, R.
dc.creatorCisse, N.
dc.creatorDavid, A.
dc.creatorHearne, S.
dc.creatorFatokun, C.
dc.creatorDiop, N.N.
dc.creatorEhlers, J.D.
dc.date2014-03-05T17:59:58Z
dc.date2014-03-05T17:59:58Z
dc.date2013
dc.date.accessioned2023-07-17T19:57:33Z
dc.date.available2023-07-17T19:57:33Z
dc.identifierhttp://hdl.handle.net/10883/3449
dc.identifier10.3835/plantgenome2013.03.0005
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7509197
dc.descriptionCowpea [Vigna unguiculata (L.) Walp.] is a major tropical legume crop grown in warm to hot areas throughout the world and especially important to the people of sub-Saharan Africa where the crop was domesticated. To date, relatively little is understood about its domestication origins and patterns of genetic variation. In this study, a worldwide collection of cowpea landraces and African ancestral wild cowpea was genotyped with more than 1200 single nucleotide polymorphism markers. Bayesian inference revealed the presence of two major gene pools in cultivated cowpea in Africa. Landraces from gene pool 1 are mostly distributed in western Africa while the majority of gene pool 2 are located in eastern Africa. Each gene pool is most closely related to wild cowpea in the same geographic region, indicating divergent domestication processes leading to the formation of two gene pools. The total genetic variation within landraces from countries outside Africa was slightly greater than within African landraces. Accessions from Asia and Europe were more related to those from western Africa while accessions from the Americas appeared more closely related to those from eastern Africa. This delineation of cowpea germplasm into groups of genetic relatedness will be valuable for guiding introgression efforts in breeding programs and for improving the efficiency of germplasm management.
dc.description1-8
dc.formatPDF
dc.languageEnglish
dc.publisherCrop Science Society of America
dc.publisherhttps://www.crops.org/publications/tpg/abstracts/6/3/plantgenome2013.03.0005
dc.rightsOpen Access
dc.source3
dc.source6
dc.sourceThe Plant Genome
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectCOWPEAS
dc.subjectGENE POOLS
dc.subjectGENETIC MAPS
dc.titleGene pools and the genetic architecture of domesticated cowpea
dc.typeArticle


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