@article{fdi:010092878,
  title = {{R}apid evolution in action : environmental filtering supports coral adaptation to a hot, acidic, and deoxygenated extreme habitat},
  author = {{L}eiva, {C}. and {T}orda, {G}. and {Z}hou, {C}. {R}. and {P}an, {Y}. {R}. and {H}arris, {J}. and {X}iang, {X}. {Y}. and {T}an, {S}. {J}. and {T}ian, {W}. and {H}ume, {B}. and {M}iller, {D}. {J}. and {L}i, {Q}. {Y}. and {Z}hang, {G}. {J}. and {C}ooke, {I}. and {R}odolfo-{M}etalpa, {R}iccardo},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he semienclosed {B}ourake lagoon in {N}ew {C}aledonia is a natural system that enables observation of evolution in action with respect to stress tolerance in marine organisms, a topic directly relevant to understanding the consequences of global climate change. {C}orals inhabiting the {B}ourake lagoon endure extreme conditions of elevated temperature (> 33 degrees {C}), acidification (7.2 p{H} units), and deoxygenation (2.28 mg {O}2 {L}-1), which fluctuate with the tide due to the lagoon's geomorphology. {T}o investigate the underlying bases of the apparent stress tolerance of these corals, we combined whole genome resequencing of the coral host and {ITS}2 metabarcoding of the photosymbionts from 90 {A}cropora tenuis colonies from three localities along the steep environmental gradient from {B}ourake to two nearby control reefs. {O}ur results highlight the importance of coral flexibility to associate with different photosymbionts in facilitating stress tolerance of the holobiont; but, perhaps more significantly, strong selective effects were detected at specific loci in the host genome. {F}ifty-seven genes contained {SNP}s highly associated with the extreme environment of {B}ourake and were enriched in functions related to sphingolipid metabolism. {W}ithin these genes, the conserved sensor of noxious stimuli {TRPA}1 and the {ABCC}4 transporter stood out due to the high number of environmentally selected {SNP}s that they contained. {P}rotein 3{D} structure predictions suggest that a single-point mutation causes the rotation of the main regulatory domain of {TRPA}1, which may be behind this case of natural selection through environmental filtering. {W}hile the corals of the {B}ourake lagoon provide a striking example of rapid adaptation to extreme conditions, overall, our results highlight the need to preserve the current standing genetic variation of coral populations to safeguard their adaptive potential to ongoing rapid environmental change.},
  keywords = {{A}cropora tenuis ; adaptive potential ; {B}ourake lagoon ; genotype-environment associations ; {ITS}2 ; natural analogues ; natural selection ; population genomics ; symbiont shuffling ; {TRPA}1 ; {NOUVELLE} {CALDONIE} ; {BOURAKE} {LAGON}},
  booktitle = {},
  journal = {{G}lobal {C}hange {B}iology},
  volume = {31},
  numero = {3},
  pages = {e70103 [16 p.]},
  ISSN = {1354-1013},
  year = {2025},
  DOI = {10.1111/gcb.70103},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092878},
}