Journal
GENOME RESEARCH
Volume 13, Issue 5, Pages 794-799Publisher
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/gr.714603
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Funding
- NIGMS NIH HHS [R33 GM066710, R01 GM043940, R01 GM43940] Funding Source: Medline
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Phylogenetic analysis of conserved gene families in fission yeast Schizosaccharomyces pombe and brewer's yeast Saccharomyces cerevisiae showed that gene duplications have occurred independently in the same families in each of these two lineages to afar greater extent than expected by chance. These species represent distinct lineages of the phylum Ascomycota that independently evolved a yeast life cycle with a unicellular thallus that reproduces by budding, and many of the genes that have duplicated independently in the two lineages are known to be involved in crucial aspects of this life cycle. Parallel gene duplication thus appears to have played a role in the independent origin of similar adaptations in the two species. The results indicate that using phylogenetic analysis to test for parallel gene duplication in different species may help in identifying genes responsible for similar but independently evolved adaptations.
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