@article{fdi:010040643,
  title = {{I}solation by distance and {P}leistocene expansion of the lowland populations of the white piranha {S}errasalmus rhombeus},
  author = {{H}ubert, {N}icolas and {D}uponchelle, {F}abrice and {N}unez, {J}esus and {R}ivera, {R}. and {B}onhomme, {F}. and {R}enno, {J}ean-{F}ran{\c{c}}ois},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he genetic variability and distribution of {A}mazonian fish species have likely been influenced by major disturbance events in recent geological times. {A}lternatively, the great diversity of aquatic habitat in the {A}mazon is likely to shape ongoing gene flow and genetic diversity. {I}n this context, complex patterns of genetic structure originating from a joint influence of historical and contemporary gene flow are to be expected. {W}e explored the relative influence of {P}leistocene climatic fluctuations and current water chemistry on the genetic structure of a piranha, {S}errasalmus rhombeus, in the {U}pper {A}mazon by the simultaneous analysis of intron length polymorphism and mitochondrial {DNA} sequences. {T}he {M}adeira river is well suited for that purpose as it is characterized by a great diversity of water types, the presence of one of the largest floodplain of the {A}mazon and the potential occurrence of two {P}leistocene refuges. {W}e found evidence of genetic structure even at a small geographical scale (less than 10 km), indicating that the floodplain is not a homogenizing factor promoting interdrainage dispersal in {S}. rhombeus. {L}ikewise, the hierarchical genetic structure inferred was correlated to geographical distance instead of habitat characteristic. {O}ur results also support the hypothesis that the area underwent population expansion during the last 800 000 years. {I}n addition, a higher level of genetic diversity was found in the samples from the putative {A}ripuana refuge. {T}he present findings suggest that {P}leistocene refuges contributed significantly to the colonization of the lowlands in the {U}pper {A}mazon valley during the {P}leistocene.},
  keywords = {{C}haracidae ; museum hypothesis ; {N}eotropics ; nonequilibrium ; population expansion ; refuge hypothesis},
  booktitle = {},
  journal = {{M}olecular {E}cology},
  volume = {16},
  numero = {12},
  pages = {2488--2503},
  ISSN = {0962-1083},
  year = {2007},
  DOI = {10.1111/j.1365-294{X}.2007.03338.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040643},
}