@article{fdi:010081733, title = {{M}ulti-approach analysis reveals local adaptation in a widespread forest tree of {R}eunion island}, author = {{G}arot, {E}. and {D}ussert, {S}t{\'e}phane and {D}omergue, {F}. and {J}o{\¨e}t, {T}hierry and {F}ock-{B}astide, {I}. and {C}ombes, {M}arie-{C}hristine and {L}ashermes, {P}hilippe}, editor = {}, language = {{ENG}}, abstract = {{D}etecting processes of local adaptation in forest trees and identifying environmental selective drivers are of primary importance for forest management and conservation. {T}ransplant experiments, functional genomics and population genomics are complementary tools to efficiently characterize heritable phenotypic traits and to decipher the genetic bases of adaptive traits. {U}sing an integrative approach combining phenotypic assessment in common garden, transcriptomics and landscape genomics, we investigated leaf adaptive traits in {C}offea mauritiana, a forest tree endemic to {R}eunion {I}sland. {E}ight populations of {C}. mauritiana originating from sites with contrasted environmental conditions were sampled in common garden to assess several leaf morphological traits, to analyze the leaf transcriptome and leaf cuticular wax composition. {T}he relative alkane content of cuticular waxes was significantly correlated with major climatic gradients, paving the way for further transcriptome-based analyses. {T}he expression pattern of cuticle biosynthetic genes was consistent with a modulation of alkane accumulation across the population studied, supporting the hypothesis that the composition of cuticular wax is involved in the local adaptation of {C}. mauritiana. {A}ssociation tests in landscape genomics performed using {RNA}-seq-derived single-nucleotide polymorphisms revealed that genes associated with cell wall remodeling also likely play an adaptive role. {B}y combining these different approaches, this study efficiently identified local adaptation processes in a non-model species. {O}ur results provide the first evidence for local adaptation in trees endemic to {R}eunion {I}sland and highlight the importance of cuticle composition for the adaptation of trees to the high evaporative demand in warm climates}, keywords = {{REUNION}}, booktitle = {}, journal = {{P}lant and {C}ell {P}hysiology}, volume = {62}, numero = {2}, pages = {280--292}, ISSN = {0032-0781}, year = {2021}, DOI = {10.1093/pcp/pcaa160}, URL = {https://www.documentation.ird.fr/hor/fdi:010081733}, }