@article{fdi:010048401, title = {{P}hylogeography of the {G}uinea multimammate mouse ({M}astomys erythroleucus) : a case study for {S}ahelian species in {W}est {A}frica}, author = {{B}rouat, {C}arine and {T}atard, {C}. and {B}a, {K}. and {C}osson, {J}. {F}. and {D}obigny, {G}authier and {F}ichet {C}alvet, {E}. and {G}ranjon, {L}aurent and {L}ecompte, {E}. and {L}oiseau, {A}nne and {M}ouline, {K}arine and {P}iry, {S}. and {D}uplantier, {J}ean-{M}arc}, editor = {}, language = {{ENG}}, abstract = {{A}im {T}o investigate the phylogeographical structure of the {G}uinea multimammate mouse, {M}astomys erythroleucus ({T}emminck, 1853), a widespread murid rodent in sub-{S}aharan ({S}ahel and {S}udan) savannas, for a better understanding of the impacts of geographical and historical factors on the evolutionary history of this species, in the context of the growing database of phylogeographical studies of {A}frican savanna mammal species. {L}ocation {S}ahel and {S}udan savannas, {A}frica. {M}ethods {W}e sequenced the whole cytochrome b gene in 211 individuals from 59 localities distributed from {S}enegal to {E}thiopia. {S}equence data were analysed using both phylogenetic (several rooted tree-construction methods, median-joining networks) and population genetic methods (spatial analyses of molecular variance, mismatch distributions). {R}esults {H}aplotypes were distributed into four major monophyletic groups corresponding to distinct geographical regions across a west-east axis. {D}iversification events were estimated to have occurred between 1.16 and 0.18 {M}a. {M}ain conclusions {V}icariance events related to the fragmentation of savanna habitats during the {P}leistocene era may explain the phylogeographical patterns observed. {G}enetic structure was consistent with a role of major {S}ahelian rivers as significant barriers to west-east dispersal. {R}ecent demographic expansions probably occurred during arid phases of the {H}olocene with the southward expansion of savannas.}, keywords = {{A}frica ; {M}astomys erythroleucus ; mt{DNA} ; phylogeography ; {Q}uaternary history ; rodent ; savanna ; sub-{S}ahara}, booktitle = {}, journal = {{J}ournal of {B}iogeography}, volume = {36}, numero = {12}, pages = {2237--2250}, ISSN = {0305-0270}, year = {2009}, DOI = {10.1111/j.1365-2699.2009.02184.x}, URL = {https://www.documentation.ird.fr/hor/fdi:010048401}, }