@article{fdi:010096307,
  title = {{R}are interspecific hybridisation between sympatric {A}frican four-striped mice, and indications of fine-scale intraspecific spatial structure related to social factors},
  author = {{G}anem, {G}. and {D}ufour, {C}. {M}. {S}. and {A}venant, {N}. {L}. and {B}erthier, {K}. and {L}oiseau, {A}. and {C}aminade, {P}. and {P}illay, {N}. and {B}rouat, {C}arine},
  editor = {},
  language = {{ENG}},
  abstract = {{S}patial and social population structures can influence intra-and interspecific genetic processes. {W}e investigated the spatial and social genetic structure of two sister species and evaluated whether there was evidence of hybridisation between them at a microgeographic scale, in syntopy. {O}ur study models were {R}habdomys bechuanae ({R}bech) and {R}habdomys dilectus dilectus ({R}dil). {W}e generated population genetic data using microsatellite markers and cross-referenced some of these results with published behavioural data from a prior study, reanalysed here. {W}e compared genetic diversity and gene flow both in sympatry and allopatry, we tested for hybridisation between the sister species in sympatry and assessed the relationship between kinship and fine-scale spatial and social organisation. {G}enetic diversity was high within all populations of the two species. {P}opulation genetic substructure was more pronounced in {R}bech than in {R}dil, consistent with stronger group cohesion reported for {R}bech. {STRUCTURE} and {NEWHYBRIDS} analyses suggested that sympatric individuals, 5% in {R}bech, and 2% in {R}dil, might have hybrid ancestry. {O}ur results indicate social fences may limit gene flow within and between species. {F}urther, limited hybridisation suggests that, despite syntopy, only rare events of hybridisation may occur, possibly at phases of density troughs and/or that {F}1 hybrids have a relatively low fitness.},
  keywords = {population genetics ; microsatellites ; species interference ; social grouping ; kinship ; {R}habdomys bechuanae ; {R}habdomys dilectus dilectus ; {S}outhern {A}frica ; {AFRIQUE} {DU} {SUD}},
  booktitle = {},
  journal = {{J}ournal of {V}ertebrate {B}iology},
  volume = {75},
  numero = {},
  pages = {25073 [17 p.]},
  ISSN = {2694-7684},
  year = {2026},
  DOI = {10.25225/jvb.25073},
  URL = {https://www.documentation.ird.fr/hor/fdi:010096307},
}