The evolution of gene expression levels in mammalian organs
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The evolution of gene expression levels in mammalian organs. / Brawand, David; Soumillon, Magali; Necsulea, Anamaria; Julien, Philippe; Csardi, Gabor; Harrigan, Patrick; Weier, Manuela; Liechti, Angelica; Aximu-Petri, Ayinuer; Kircher, Martin; Albert, Frank W.; Zeller, Ulrich; Khaitovich, Philipp; Gruetzner, Frank; Bergmann, Sven; Nielsen, Rasmus; Paeaebo, Svante; Kaessmann, Henrik.
In: Nature, Vol. 478, No. 7369, 20.10.2011, p. 343-348.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The evolution of gene expression levels in mammalian organs
AU - Brawand, David
AU - Soumillon, Magali
AU - Necsulea, Anamaria
AU - Julien, Philippe
AU - Csardi, Gabor
AU - Harrigan, Patrick
AU - Weier, Manuela
AU - Liechti, Angelica
AU - Aximu-Petri, Ayinuer
AU - Kircher, Martin
AU - Albert, Frank W.
AU - Zeller, Ulrich
AU - Khaitovich, Philipp
AU - Gruetzner, Frank
AU - Bergmann, Sven
AU - Nielsen, Rasmus
AU - Paeaebo, Svante
AU - Kaessmann, Henrik
PY - 2011/10/20
Y1 - 2011/10/20
N2 - Changes in gene expression are thought to underlie many of the phenotypic differences between species. However, large-scale analyses of gene expression evolution were until recently prevented by technological limitations. Here we report the sequencing of polyadenylated RNA from six organs across ten species that represent all major mammalian lineages (placentals, marsupials and monotremes) and birds (the evolutionary outgroup), with the goal of understanding the dynamics of mammalian transcriptome evolution. We show that the rate of gene expression evolution varies among organs, lineages and chromosomes, owing to differences in selective pressures: transcriptome change was slow in nervous tissues and rapid in testes, slower in rodents than in apes and monotremes, and rapid for the X chromosome right after its formation. Although gene expression evolution in mammals was strongly shaped by purifying selection, we identify numerous potentially selectively driven expression switches, which occurred at different rates across lineages and tissues and which probably contributed to the specific organ biology of various mammals.
AB - Changes in gene expression are thought to underlie many of the phenotypic differences between species. However, large-scale analyses of gene expression evolution were until recently prevented by technological limitations. Here we report the sequencing of polyadenylated RNA from six organs across ten species that represent all major mammalian lineages (placentals, marsupials and monotremes) and birds (the evolutionary outgroup), with the goal of understanding the dynamics of mammalian transcriptome evolution. We show that the rate of gene expression evolution varies among organs, lineages and chromosomes, owing to differences in selective pressures: transcriptome change was slow in nervous tissues and rapid in testes, slower in rodents than in apes and monotremes, and rapid for the X chromosome right after its formation. Although gene expression evolution in mammals was strongly shaped by purifying selection, we identify numerous potentially selectively driven expression switches, which occurred at different rates across lineages and tissues and which probably contributed to the specific organ biology of various mammals.
U2 - 10.1038/nature10532
DO - 10.1038/nature10532
M3 - Journal article
C2 - 22012392
VL - 478
SP - 343
EP - 348
JO - Nature
JF - Nature
SN - 0028-0836
IS - 7369
ER -
ID: 49697350