@article{fdi:010097433,
  title = {{C}ontrasting population structures of reef-building corals and their algal symbionts inform adaptive potential across the western {P}acific},
  author = {{D}enis, {H}. and {P}rata, {K}. {E}. and {I}shida, {H}. and {P}opovic, {I}. and {M}ocellin, {V}. {J}. {L}. and {B}oussion, {M}agali and {B}yrne, {I}. and {P}urcell, {S}. {W}. and {B}ay, {L}. {K}. and {L}ecellier, {G}. and {C}han, {C}. {X}. and {R}iginos, {C}. and {H}owells, {E}. {J}. and {B}erteaux-{L}ecellier, {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he genetic diversity and connectivity of reef-building coral populations are key to their survival in warming oceans. {Y}et our understanding of corals' demographic resilience and adaptive potential is complicated by cryptic species diversity, wide geographic distributions, and complex coral-algal symbioses. {T}o address these challenges, we investigated the genetic connectivity and diversity of the broadcast-spawning coral {A}cropora cf. spathulata and its associated {S}ymbiodiniaceae across 29 reefs spanning the {G}reat {B}arrier {R}eef, the {C}oral {S}ea, and {N}ew {C}aledonia, using whole-genome sequencing of 1,088 colonies. {W}e identified four genetically distinct coral populations that diverged between 0.27 and 0.65 mya, likely due to geographic isolation across thousands of kilometers. {T}hese populations maintained asymmetrical gene flow along major ocean currents despite demographic isolation and sustained large local effective population sizes (similar to 2,900), supported by a high dispersal range of similar to 100 km per generation. {I}n contrast, their {S}ymbiodiniaceae partners varied over finer spatial scales, with five distinct {C}ladocopium taxa distributed along latitudinal and cross-shore gradients, likely driven by local environmental conditions. {T}hese results suggest that high dispersal capacity and large local population size promote demographic resilience within reef systems, while environment-specific symbioses and long-distance gene flow across reef systems support adaptation and evolutionary rescue.},
  keywords = {{PACIFIQUE} ; {PACIFIQUE} {OUEST}},
  booktitle = {},
  journal = {{C}urrent {B}iology},
  volume = {36},
  numero = {11},
  pages = {2808--2822.e1--e8},
  ISSN = {0960-9822},
  year = {2026},
  DOI = {10.1016/j.cub.2026.04.057},
  URL = {https://www.documentation.ird.fr/hor/fdi:010097433},
}