Publication Date:
2012-12-22
Description:
How species with similar repertoires of protein-coding genes differ so markedly at the phenotypic level is poorly understood. By comparing organ transcriptomes from vertebrate species spanning ~350 million years of evolution, we observed significant differences in alternative splicing complexity between vertebrate lineages, with the highest complexity in primates. Within 6 million years, the splicing profiles of physiologically equivalent organs diverged such that they are more strongly related to the identity of a species than they are to organ type. Most vertebrate species-specific splicing patterns are cis-directed. However, a subset of pronounced splicing changes are predicted to remodel protein interactions involving trans-acting regulators. These events likely further contributed to the diversification of splicing and other transcriptomic changes that underlie phenotypic differences among vertebrate species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barbosa-Morais, Nuno L -- Irimia, Manuel -- Pan, Qun -- Xiong, Hui Y -- Gueroussov, Serge -- Lee, Leo J -- Slobodeniuc, Valentina -- Kutter, Claudia -- Watt, Stephen -- Colak, Recep -- Kim, TaeHyung -- Misquitta-Ali, Christine M -- Wilson, Michael D -- Kim, Philip M -- Odom, Duncan T -- Frey, Brendan J -- Blencowe, Benjamin J -- 15603/Cancer Research UK/United Kingdom -- A15603/Cancer Research UK/United Kingdom -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2012 Dec 21;338(6114):1587-93. doi: 10.1126/science.1230612.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, Donnelly Centre, University of Toronto, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258890" target="_blank"〉PubMed〈/a〉
Keywords:
*Alternative Splicing
;
Animals
;
Biological Evolution
;
Chickens/genetics
;
*Evolution, Molecular
;
Exons
;
Introns
;
Lizards/genetics
;
Mice/genetics
;
Mice, Inbred C57BL/genetics
;
Opossums/genetics
;
Phenotype
;
Platypus/genetics
;
Primates/genetics
;
RNA Splice Sites
;
Regulatory Sequences, Ribonucleic Acid
;
Species Specificity
;
*Transcriptome
;
Vertebrates/*genetics
;
Xenopus/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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