Comparative transcriptomics of primary cells in vertebrates
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Comparative transcriptomics of primary cells in vertebrates. / Alam, Tanvir; Agrawal, Saumya; Severin, Jessica; Young, Robert S.; Andersson, Robin; Arner, Erik; Hasegawa, Akira; Lizio, Marina; Ramilowski, Jordan A.; Abugessaisa, Imad; Ishizu, Yuri; Noma, Shohei; Tarui, Hiroshi; Taylor, Martin S.; Lassmann, Timo; Itoh, Masayoshi; Kasukawa, Takeya; Kawaji, Hideya; Marchionni, Luigi; Sheng, Guojun; Forrest, Alistair R. R.; Khachigian, Levon M.; Hayashizaki, Yoshihide; Carninci, Piero; de Hoon, Michiel J. L.
In: Genome Research, Vol. 30, No. 7, 2020, p. 951-961.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Comparative transcriptomics of primary cells in vertebrates
AU - Alam, Tanvir
AU - Agrawal, Saumya
AU - Severin, Jessica
AU - Young, Robert S.
AU - Andersson, Robin
AU - Arner, Erik
AU - Hasegawa, Akira
AU - Lizio, Marina
AU - Ramilowski, Jordan A.
AU - Abugessaisa, Imad
AU - Ishizu, Yuri
AU - Noma, Shohei
AU - Tarui, Hiroshi
AU - Taylor, Martin S.
AU - Lassmann, Timo
AU - Itoh, Masayoshi
AU - Kasukawa, Takeya
AU - Kawaji, Hideya
AU - Marchionni, Luigi
AU - Sheng, Guojun
AU - Forrest, Alistair R. R.
AU - Khachigian, Levon M.
AU - Hayashizaki, Yoshihide
AU - Carninci, Piero
AU - de Hoon, Michiel J. L.
N1 - © 2020 Alam et al.; Published by Cold Spring Harbor Laboratory Press.
PY - 2020
Y1 - 2020
N2 - Gene expression profiles in homologous tissues have been observed to be different between species, which may be due to differences between species in the gene expression program in each cell type, but may also reflect differences in cell type composition of each tissue in different species. Here, we compare expression profiles in matching primary cells in human, mouse, rat, dog, and chicken using Cap Analysis Gene Expression (CAGE) and short RNA (sRNA) sequencing data from FANTOM5. While we find that expression profiles of orthologous genes in different species are highly correlated across cell types, in each cell type many genes were differentially expressed between species. Expression of genes with products involved in transcription, RNA processing, and transcriptional regulation was more likely to be conserved, while expression of genes encoding proteins involved in intercellular communication was more likely to have diverged during evolution. Conservation of expression correlated positively with the evolutionary age of genes, suggesting that divergence in expression levels of genes critical for cell function was restricted during evolution. Motif activity analysis showed that both promoters and enhancers are activated by the same transcription factors in different species. An analysis of expression levels of mature miRNAs and of primary miRNAs identified by CAGE revealed that evolutionary old miRNAs are more likely to have conserved expression patterns than young miRNAs. We conclude that key aspects of the regulatory network are conserved, while differential expression of genes involved in cell-to-cell communication may contribute greatly to phenotypic differences between species.
AB - Gene expression profiles in homologous tissues have been observed to be different between species, which may be due to differences between species in the gene expression program in each cell type, but may also reflect differences in cell type composition of each tissue in different species. Here, we compare expression profiles in matching primary cells in human, mouse, rat, dog, and chicken using Cap Analysis Gene Expression (CAGE) and short RNA (sRNA) sequencing data from FANTOM5. While we find that expression profiles of orthologous genes in different species are highly correlated across cell types, in each cell type many genes were differentially expressed between species. Expression of genes with products involved in transcription, RNA processing, and transcriptional regulation was more likely to be conserved, while expression of genes encoding proteins involved in intercellular communication was more likely to have diverged during evolution. Conservation of expression correlated positively with the evolutionary age of genes, suggesting that divergence in expression levels of genes critical for cell function was restricted during evolution. Motif activity analysis showed that both promoters and enhancers are activated by the same transcription factors in different species. An analysis of expression levels of mature miRNAs and of primary miRNAs identified by CAGE revealed that evolutionary old miRNAs are more likely to have conserved expression patterns than young miRNAs. We conclude that key aspects of the regulatory network are conserved, while differential expression of genes involved in cell-to-cell communication may contribute greatly to phenotypic differences between species.
U2 - 10.1101/gr.255679.119
DO - 10.1101/gr.255679.119
M3 - Journal article
C2 - 32718981
VL - 30
SP - 951
EP - 961
JO - Genome Research
JF - Genome Research
SN - 1088-9051
IS - 7
ER -
ID: 247073016