RRC ID 55533
著者 Takashima M, Sriswasdi S, Manabe RI, Ohkuma M, Sugita T, Iwasaki W.
タイトル A Trichosporonales genome tree based on 27 haploid and three evolutionarily conserved 'natural' hybrid genomes.
ジャーナル Yeast
Abstract To construct a backbone tree consisting of basidiomycetous yeasts, draft genome sequences from 25 species of Trichosporonales (Tremellomycetes, Basidiomycota) were generated. In addition to the hybrid genomes of Trichosporon coremiiforme and Trichosporon ovoides that we described previously, we identified an interspecies hybrid genome in Cutaneotrichosporon mucoides (formerly Trichosporon mucoides). This hybrid genome had a gene retention rate of ~55%, and its closest haploid relative was Cutaneotrichosporon dermatis. After constructing the C. mucoides subgenomes, we generated a phylogenetic tree using genome data from the 27 haploid species and the subgenome data from the three hybrid genome species. It was a high-quality tree with 100% bootstrap support for all of the branches. The genome-based tree provided superior resolution compared with previous multi-gene analyses. Although our backbone tree does not include all Trichosporonales genera (e.g. Cryptotrichosporon), it will be valuable for future analyses of genome data. Interest in interspecies hybrid fungal genomes has recently increased because they may provide a basis for new technologies. The three Trichosporonales hybrid genomes described in this study are different from well-characterized hybrid genomes (e.g. those of Saccharomyces pastorianus and Saccharomyces bayanus) because these hybridization events probably occurred in the distant evolutionary past. Hence, they will be useful for studying genome stability following hybridization and speciation events. Copyright © 2017 John Wiley & Sons, Ltd.
巻・号 35(1)
ページ 99-111
公開日 2018-1-1
DOI 10.1002/yea.3284
PMID 29027707
MeSH Basidiomycota / genetics* Biological Evolution* Genome, Fungal* Haploidy* Hybridization, Genetic* Yeasts / genetics*
IF 2.395
引用数 8
リソース情報
一般微生物 JCM 1599 JCM 9941 JCM 10018 JCM 2947 JCM 9937 JCM 1458 JCM 10691 JCM 14201 JCM 1532 JCM 1462 JCM 31833 JCM 11166 JCM 11170 JCM 10690 JCM 9939 JCM 1530 JCM 1457 JCM 12878 JCM 11965 JCM 2961 JCM 13614 JCM 9039 JCM 2466