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Intron Loss Dynamics in Mammals

  • Conference paper
Comparative Genomics (RCG 2006)

Part of the book series: Lecture Notes in Computer Science ((LNBI,volume 4205))

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Abstract

We used whole-genome sequence alignments of human, mouse, rat, and dog to perform a genome-wide analysis of intron loss and gain events in over 17,000 mammalian genes. We found no evidence for intron gain and 122 cases of intron loss, most of which occurred within the rodent lineage. Majority (68%) of the deleted introns were extremely small (<150 bp), significantly smaller than average. The intron losses occurred almost exclusively within highly expressed, housekeeping genes, supporting the hypothesis that intron loss is mediated via germline recombination with spliced mRNA intermediates. This study constitutes the largest scale analysis for intron dynamics in vertebrates to date and allows us to confirm and extend several hypotheses previously based on much smaller samples.

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© 2006 Springer-Verlag Berlin Heidelberg

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Coulombe-Huntington, J., Majewski, J. (2006). Intron Loss Dynamics in Mammals. In: Bourque, G., El-Mabrouk, N. (eds) Comparative Genomics. RCG 2006. Lecture Notes in Computer Science(), vol 4205. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11864127_13

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  • DOI: https://doi.org/10.1007/11864127_13

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-44529-6

  • Online ISBN: 978-3-540-44530-2

  • eBook Packages: Computer ScienceComputer Science (R0)

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