Article Dans Une Revue Science Année : 2005

Vertebrate-Type Intron-Rich Genes in the Marine Annelid Platynereis dumerilii

Vertebrate-type intron-rich genes in the marine annelid Platynereis dumerilii.

Patrick Wincker
Claire Jubin
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Jean Weissenbach

Résumé

Previous genome comparisons have suggested that one important trend in vertebrate evolution has been a sharp rise in intron abundance. By using genomic data and expressed sequence tags from the marine annelid Platynereis dumerilii , we provide direct evidence that about two-thirds of human introns predate the bilaterian radiation but were lost from insect and nematode genomes to a large extent. A comparison of coding exon sequences confirms the ancestral nature of Platynereis and human genes. Thus, the urbilaterian ancestor had complex, intron-rich genes that have been retained in Platynereis and human.

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Dates et versions

hal-04690301 , version 1 (06-09-2024)

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Florian Raible, Kristin Tessmar-Raible, Kazutoyo Osoegawa, Patrick Wincker, Claire Jubin, et al.. Vertebrate-Type Intron-Rich Genes in the Marine Annelid Platynereis dumerilii. Science, 2005, 310 (5752), pp.1325-1326. ⟨10.1126/science.1119089⟩. ⟨hal-04690301⟩
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