@article{fdi:010057187, title = {{G}enetic structure and mating system of wild cowpea populations in {W}est {A}frica}, author = {{K}ouam, {E}. {B}. and {P}asquet, {R}{\'e}my and {C}ampagne, {P}ascal and {T}ignegre, {J}. {B}. and {T}hoen, {K}. and {G}audin, {R}. and {O}uedraogo, {J}. {T}. and {S}alifu, {A}. {B}. and {M}uluvi, {G}. {M}. and {G}epts, {P}.}, editor = {}, language = {{ENG}}, abstract = {{B}ackground: {C}owpea is a highly inbred crop. {I}t is part of a crop-weed complex, whose origin and dynamics is unknown, which is distributed across the {A}frican continent. {T}his study examined outcrossing rates and genetic structures in 35 wild cowpea ({V}igna unguiculata ssp. unguiculata var. spontanea) populations from {W}est {A}frica, using 21 isozyme loci, 9 of them showing polymorphism. {R}esults: {O}utcrossing rates ranged from 1% to 9.5% (mean 3.4%), which classifies the wild cowpea breeding system as primarily selfing, though rare outcrossing events were detected in each population studied. {F}urthermore, the analyses of both the genetic structure of populations and the relationships between the wild and domesticated groups suggest possibilities of gene flow that are corroborated by field observations. {C}onclusions: {A}s expected in a predominantly inbred breeding system, wild cowpea shows high levels of genetic differentiation and low levels of genetic diversity within populations. {G}ene flow from domesticated to wild cowpea does occur, although the lack of strong genetic swamping and modified seed morphology in the wild populations suggest that these introgressions should be rare.}, keywords = {}, booktitle = {}, journal = {{B}mc {P}lant {B}iology}, volume = {12}, numero = {}, pages = {113}, ISSN = {1471-2229}, year = {2012}, DOI = {10.1186/1471-2229-12-113}, URL = {https://www.documentation.ird.fr/hor/fdi:010057187}, }