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Originally published as Genetics Published Articles Ahead of Print on August 22, 2005.
Genetics, Vol. 172, 771-781, February 2006, Copyright © 2006
doi:10.1534/genetics.105.046813
Emergence of Species-Specific Transporters During Evolution of the Hemiascomycete Phylum
Benoît De Hertogh*,1,2,
Frédéric Hancy
,1,
André Goffeau
,3 and
Philippe V. Baret*
* Unité de Génétique (GENA), Unité de Génétique (GENE) and Institut des Sciences de la Vie (ISV), Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
3 Corresponding author: Université Catholique de Louvain, Croix du Sud 2-20, 1348 Louvain-la-Neuve, Belgium.
E-mail: goffeau{at}fysa.ucl.ac.be
We have traced the evolution patterns of 2480 transmembrane transporters from five complete genome sequences spanning the entire Hemiascomycete phylum: Saccharomyces cerevisiae, Candida glabrata, Kluyveromyces lactis, Debaryomyces hansenii, and Yarrowia lipolytica. The use of nonambiguous functional and phylogenetic criteria derived from the TCDB classification system has allowed the identification within the Hemiascomycete phylum of 97 small phylogenetic transporter subfamilies comprising a total of 355 transporters submitted to four distinct evolution patterns named "ubiquitous," "species specific," "phylum gains and losses," or "homoplasic." This analysis identifies the transporters that contribute to the emergence of species during the evolution of the Hemiascomycete phylum and may aid in establishing novel phylogenetic criteria for species classification.
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