@article{fdi:010075689,
  title = {{G}enetic diversity and population divergences of an indigenous tree ({C}offea mauritiana) in {R}eunion {I}sland : role of climatic and geographical factors},
  author = {{G}arot, {E}dith and {J}o{\¨e}t, {T}hierry and {C}ombes, {M}arie-{C}hristine and {L}ashermes, {P}hilippe},
  editor = {},
  language = {{ENG}},
  abstract = {{O}ceanic islands are commonly considered as natural laboratories for studies on evolution and speciation. {T}he evolutionary specificities of islands associated with species biology provide unique scenarios to study the role of geography and climate in driving population divergence. {H}owever, few studies have addressed this subject in small oceanic islands with heterogeneous climates. {B}eing widely distributed in {R}eunion {I}sland forest, {C}offea mauritiana represents an interesting model case for investigating patterns of within-island differentiation at small spatial scale. {I}n this study, we examined the genetic diversity and population divergences of {C}. mauritiana using {SNP} markers obtained from 323 individuals across 34 locations in {R}eunion {I}sland. {U}sing redundancy analysis, we further evaluated the contribution of geographic and climatic factors to shaping genetic divergence among populations. {G}enetic diversity analyses revealed that accessions clustered according to the source population, with further grouping in regional clusters. {G}enetic relationships among the regional clusters underlined a recent process of expansion in the form of step-by-step colonization on both sides of the island. {D}ivergence among source populations was mostly driven by the joint effect of geographic distance and climatic heterogeneity. {T}he pattern of isolation-by-geography was in accordance with the dispersal characteristics of the species, while isolation-by-environment was mostly explained by the heterogeneous rainfall patterns, probably associated with an asynchronous flowering among populations. {T}hese findings advance our knowledge on the patterns of genetic diversity and factors of population differentiation of species native to {R}eunion {I}sland, and will also usefully guide forest management for conservation.},
  keywords = {{REUNION}},
  booktitle = {},
  journal = {{H}eredity},
  volume = {122},
  numero = {6},
  pages = {833--847},
  ISSN = {0018-067{X}},
  year = {2019},
  DOI = {10.1038/s41437-018-0168-9},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075689},
}