@article{fdi:010070945,
  title = {{T}wo disjunct {P}leistocene populations and anisotropic postglacial expansion shaped the current genetic structure of the relict plant {A}mborella trichopoda},
  author = {{T}ournebize, {R}. and {M}anel, {S}. and {V}igouroux, {Y}ves and {M}unoz, {F}. and {K}ochko, {A}lexandre de and {P}oncet, {V}al{\'e}rie},
  editor = {},
  language = {{ENG}},
  abstract = {{P}ast climate fluctuations shaped the population dynamics of organisms in space and time, and have impacted their present intra-specific genetic structure. {D}emo-genetic modelling allows inferring the way past demographic and migration dynamics have determined this structure. {A}mborella trichopoda is an emblematic relict plant endemic to {N}ew {C}aledonia, widely distributed in the understory of non-ultramafic rainforests. {W}e assessed the influence of the last glacial climates on the demographic history and the paleo-distribution of 12 {A}mborella populations covering the whole current distribution. {W}e performed coalescent genetic modelling of these dynamics, based on both whole-genome resequencing and microsatellite genotyping data. {W}e found that the two main genetic groups of {A}mborella were shaped by the divergence of two ancestral populations during the last glacial maximum. {F}rom 12,800 years {BP}, the {S}outh ancestral population has expanded 6.3-fold while the size of the {N}orth population has remained stable. {R}ecent asymmetric gene flow between the groups further contributed to the phylogeographical pattern. {S}patially explicit coalescent modelling allowed us to estimate the location of ancestral populations with good accuracy (< 22 km) and provided indications regarding the mid-elevation pathways that facilitated postglacial expansion.},
  keywords = {{NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{PLOS} {O}ne},
  volume = {12},
  numero = {8},
  pages = {e0183412 [18 p.]},
  ISSN = {1932-6203},
  year = {2017},
  DOI = {10.1371/journal.pone.0183412},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070945},
}