@article{fdi:010065464,
  title = {{T}he greater phenotypic homeostasis of the allopolyploid {C}offea arabica improved the transcriptional homeostasis over that of both diploid parents},
  author = {{B}ertrand, {B}. and {B}ardil, {A}. and {B}araille, {H}. and {D}ussert, {S}t{\'e}phane and {D}oulbeau, {S}ylvie and {D}ubois, {E}. and {S}everac, {D}. and {D}ereeper, {A}lexis and {E}tienne, {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}olyploidy impacts the diversity of plant species, giving rise to novel phenotypes and leading to ecological diversification. {I}n order to observe adaptive and evolutionary capacities of polyploids, we compared the growth, primary metabolism and transcriptomic expression level in the leaves of the newly formed allotetraploid {C}offea arabica species compared with its two diploid parental species ({C}offea eugenioides and {C}offea canephora), exposed to four thermal regimes ({TR}s; 18-14, 23-19, 28-24 and 33-29 degrees {C}). {T}he growth rate of the allopolyploid {C}. arabica was similar to that of {C}. canephora under the hottest {TR} and that of {C}. eugenioides under the coldest {TR}. {F}or metabolite contents measured at the hottest {TR}, the allopolyploid showed similar behavior to {C}. canephora, the parent which tolerates higher growth temperatures in the natural environment. {H}owever, at the coldest {TR}, the allopolyploid displayed higher sucrose, raffinose and {ABA} contents than those of its two parents and similar linolenic acid leaf composition and {C}hl content to those of {C}. eugenioides. {A}t the gene expression level, few differences between the allopolyploid and its parents were observed for studied genes linked to photosynthesis, respiration and the circadian clock, whereas genes linked to redox activity showed a greater capacity of the allopolyploid for homeostasis. {F}inally, we found that the overall transcriptional response to {TR}s of the allopolyploid was more homeostatic compared with its parents. {T}his better transcriptional homeostasis of the allopolyploid {C}. arabica afforded a greater phenotypic homeostasis when faced with environments that are unsuited to the diploid parental species.},
  keywords = {{C}offea arabica ; {H}omeostasis ; {N}atural allopolyploid ; {P}rimary metabolism ; {T}emperature ; {T}ranscriptomic expression level},
  booktitle = {},
  journal = {{P}lant and {C}ell {P}hysiology},
  volume = {56},
  numero = {10},
  pages = {2035--2051},
  ISSN = {0032-0781},
  year = {2015},
  DOI = {10.1093/pcp/pcv117},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065464},
}