@article{fdi:010060579, title = {{C}ontribution of subgenomes to the transcriptome and their intertwined regulation in the allopolyploid {C}offea arabica grown at contrasted temperatures}, author = {{C}ombes, {M}arie-{C}hristine and {D}ereeper, {A}lexis and {S}everac, {D}. and {B}ertrand, {B}. and {L}ashermes, {P}hilippe}, editor = {}, language = {{ENG}}, abstract = {{P}olyploidy has occurred throughout the evolutionary history of plants and led to diversification and plant ecological adaptation. {F}unctional plasticity of duplicate genes is believed to play a major role in the environmental adaptation of polyploids. {I}n this context, we characterized genome-wide homoeologous gene expression in {C}offea arabica, a recent allopolyploid combining two subgenomes that derive from two closely related diploid species, and investigated its variation in response to changing environment. {T}he transcriptome of leaves of {C}. arabica cultivated at different growing temperatures suitable for one or the other parental species was examined using {RNA}-sequencing. {T}he relative contribution of homoeologs to gene expression was estimated for 9959 and 10 628 genes in warm and cold conditions, respectively. {W}hatever the growing conditions, 65% of the genes showed equivalent levels of homoeologous gene expression. {I}n 92% of the genes, relative homoeologous gene expression varied < 10% between growing temperatures. {T}he subgenome contributions to the transcriptome appeared to be only marginally altered by the different conditions (involving intertwined regulations of homeologs) suggesting that {C}. arabica's ability to tolerate a broader range of growing temperatures than its diploid parents does not result from differential use of homoeologs.}, keywords = {adaptation ; cis trans-regulation ; coffee ({C}offea arabica) ; homoeologous ; gene expression ; polyploidy ; {RNA}-sequencing ; transcriptome}, booktitle = {}, journal = {{N}ew {P}hytologist}, volume = {200}, numero = {1}, pages = {251--260}, ISSN = {1469-8137}, year = {2013}, DOI = {10.1111/nph.12371}, URL = {https://www.documentation.ird.fr/hor/fdi:010060579}, }