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Ectopic Gene Conversions in the Genome of Ten Hemiascomycete Yeast Species
Joint Authors
Source
International Journal of Evolutionary Biology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-11-25
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
We characterized ectopic gene conversions in the genome of ten hemiascomycete yeast species.
Of the ten species, three diverged prior to the whole genome duplication (WGD) event present in the yeast lineage and seven diverged after it.
We analyzed gene conversions from three separate datasets: paralogs from the three pre-WGD species, paralogs from the seven post-WGD species, and common ohnologs from the seven post-WGD species.
Gene conversions have similar lengths and frequency and occur between sequences having similar degrees of divergence, in paralogs from pre- and post-WGD species.
However, the sequences of ohnologs are both more divergent and less frequently converted than those of paralogs.
This likely reflects the fact that ohnologs are more often found on different chromosomes and are evolving under stronger selective pressures than paralogs.
Our results also show that ectopic gene conversions tend to occur more frequently between closely linked genes.
They also suggest that the mechanisms responsible for the loss of introns in S.
cerevisiae are probably also involved in the gene 3'-end gene conversion bias observed between the paralogs of this species.
American Psychological Association (APA)
Morris, Robert T.& Drouin, Guy. 2010. Ectopic Gene Conversions in the Genome of Ten Hemiascomycete Yeast Species. International Journal of Evolutionary Biology،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-512388
Modern Language Association (MLA)
Morris, Robert T.& Drouin, Guy. Ectopic Gene Conversions in the Genome of Ten Hemiascomycete Yeast Species. International Journal of Evolutionary Biology No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-512388
American Medical Association (AMA)
Morris, Robert T.& Drouin, Guy. Ectopic Gene Conversions in the Genome of Ten Hemiascomycete Yeast Species. International Journal of Evolutionary Biology. 2010. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-512388
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-512388