@article{fdi:010066224,
  title = {{P}rocesses driving the adaptive radiation of a tropical tree ({D}iospyros, {E}benaceae) in {N}ew {C}aledonia, a biodiversity hotspot},
  author = {{P}aun, {O}. and {T}urner, {B}. and {T}rucchi, {E}. and {M}unzinger, {J}{\'e}r{\^o}me and {C}hase, {M}. {W}. and {S}amuel, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}ue to its special geological history, the {N}ew {C}aledonian {A}rchipelago is a mosaic of soil types, and in combination with climatic conditions this results in a heterogeneous environment across relatively small distances. {A} group of over 20 endemic species of {D}iospyros ({E}benaceae) has rapidly and recently radiated on the archipelago after a single long-distance dispersal event. {M}ost of the {D}iospyros species in the radiating group are morphologically and ecologically well differentiated, but they exhibit low levels of {DNA} variability. {T}o investigate the processes that shaped the diversification of this group we employed restriction site associated {DNA} sequencing ({RAD}seq). {O}ver 8400 filtered {SNP}s generally confirm species delimitations and produce awell-supported phylogenetic tree. {O}ur analyses document local introgression, but only a limited potential for gene flow over longer distances. {T}he phylogenetic relationships point to an early regional clustering among populations and species, indicating that allopatric speciation with respect to macrohabitat (i.e., climatic conditions) may have had a role in the initial differentiation within the group. {A} later, more rapid radiation involved divergence with respect to microhabitat (i.e., soil preference). {S}everal sister species in the group show a parallel divergence in edaphic preference. {S}earches for genomic regions that are systematically differentiated in this replicated phenotypic divergence pointed to loci potentially involved in ion binding and cellular transport. {T}hese loci appear meaningful in the context of adaptations to soil types that differ in heavy-metal and mineral content. {I}dentical nucleotide changes affected only two of these loci, indicating that introgression may have played a limited role in their evolution. {O}ur results suggest that both allopatric diversification and (parapatric) ecological divergence shaped successive rounds of speciation in the {D}iospyros radiation on {N}ew {C}aledonia.},
  keywords = {{A}daptive radiation ; {D}iospyros ; hybridization ; {N}ew {C}aledonia ; {RAD}-sequencing ; soil adaptation ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{S}ystematic {B}iology},
  volume = {65},
  numero = {2},
  pages = {212--227},
  ISSN = {1063-5157},
  year = {2016},
  DOI = {10.1093/sysbio/syv076},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066224},
}