@article{fdi:010042971, title = {{G}enetic differentiation between {C}offea liberica var. liberica and {C} liberica var. {D}ewevrei and comparison with {C} canephora}, author = {{N}' {D}iaye, {A} and {P}oncet, {V}al{\'e}rie and {L}ouarn, {J}acques and {H}amon, {S}erge and {N}oirot, {M}ichel}, editor = {}, language = {{ENG}}, abstract = {{C}offea liberica {H}iern includes {C}. liberica var. liberica ({LIB}) from western {A}frica and {C}. liberica var. dewevrei ({DEW}) from central {A}frica. {T}his geographical distribution also includes cultivated {C}. canephora for which a within-species clustering in two interfertile groups is known. {I}n this study, genetic differentiation between {LIB} and {DEW} was evaluated on the basis of morphological traits, molecular markers ({AFLP}) and male fertility of {F}1 hybrids. {T}he results were also compared with the within-species differentiation in {C}. canephora. {T}he morphological traits differed significantly but the distributions overlapped. {B}y contrast, {LIB} and {DEW} constituted two distinct groups with high genetic differentiation ({G}(st)=0.25) when using {AFLP} markers. {I}n addition, the pollen viability of {F}1 hybrids between {LIB} and {DEW} was weak (44.2%) and similar to interspecific {C}. canephora x {DEW} {F}1 hybrids or {C}. canephora x {LIB} {F}1 hybrids, indicating that there are marked reproductive barriers between {LIB} and {DEW}.}, keywords = {{C}offea liberica ; {C}offea dewevrei ; {C}offea canephora ; morphological traits ; {AFLP} markers ; reproductive isolation ; genetic differentiation}, booktitle = {}, journal = {{P}lant {S}ystematics and {E}volution}, volume = {253}, numero = {1-4}, pages = {95--104}, ISSN = {0378-2697}, year = {2005}, DOI = {10.1007/s00606-005-0300-1}, URL = {https://www.documentation.ird.fr/hor/fdi:010042971}, }