@article{fdi:010090109, title = {{G}enetic diversity and structure in wild and cultivated populations of an emblematic {A}frican tree species, {G}arcinia kola ({C}lusiaceae)}, author = {{Y}ogom, {B}. {T}. and {A}vana-{T}ientcheu, {M}. {L}. and {M}onthe, {F}. {K}. and {B}issiengou, {P}. and {L}oumeto, {J}. {J}. and {Z}ekraoui, {L}eila and {H}ervouet, {C}. and {F}onkou, {T}. and {M}ariac, {C}{\'e}dric and {D}uminil, {J}{\'e}r{\^o}me}, editor = {}, language = {{ENG}}, abstract = {{N}on-timber forest products ({NTFP}s) are important components of rural people's livelihood, being used notably for food and medicine. {G}iven their socio-economic importance, {NTFP} species are often integrated in farmers' fields using wild seed material from adjacent forests. {I}n sub-{S}aharan {A}frica, the evolutionary history, and more specifically, the cultivation history of these species (geographical origin, dating), is still largely unknown. {T}his study focuses on an {A}frican medicinal tree species, originating from the {G}uineo-{C}ongolian rain forests and commonly known as the bitter kola tree ({G}arcinia kola, {C}lusiaceae). {W}e estimated species genome size and chromosome number. {W}e developed eleven highly polymorphic nuclear microsatellite markers and used seven of them to characterize patterns of distribution of genetic diversity within populations of {G}. kola in the forest (161 wild individuals coming from nine different populations from {C}ameroon, {G}abon, and the {R}epublic of {C}ongo) and on-farm (82 cultivated individuals from five populations from {C}ameroon). {T}he species is most probably hexaploid, with a relatively large genome size (2{C} = 25.5 to 28.5 picogram) and ca. 170 chromosomes. {T}hree intra-specific gene pools were observed along a north-south axis within wild populations. {T}his genetic differentiation pattern presents some similarities with patterns already observed in other tree species from the region, suggesting that a common factor, potentially past-climatic oscillations, has affected the demography of forest trees in the same way. {C}ultivated populations were not spatially structured, and the genetic differentiation between wild and cultivated populations was low ({G}({ST}) = 0.017). {T}he cultivation history of the species was difficult to interpret. {I}t is actually unclear if cultivated populations from {C}ameroon are derived from wild {C}ameroonian populations or if they originate from wild populations of {W}est {A}frican countries, notably {N}igeria.}, keywords = {{B}itter kola ; {D}omestication history ; {F}orest refuge hypothesis ; {G}enetic diversity ; {M}edicinal tree ; {CAMEROUN} ; {GABON} ; {CONGO}}, booktitle = {}, journal = {{T}ree {G}enetics and {G}enomes}, volume = {19}, numero = {5}, pages = {39 [14 ]}, ISSN = {1614-2942}, year = {2023}, DOI = {10.1007/s11295-023-01614-w}, URL = {https://www.documentation.ird.fr/hor/fdi:010090109}, }