uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Multilocus phylogenetic study of the Scheffersomyces yeast clade and characterization of the N-terminal region of xylose reductase gene.
Department of Biological Sciences, Louisiana State University.
Department of Biological Sciences, Louisiana State University.
2012 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 7, no 6, e39128- p.Article in journal (Refereed) Published
Abstract [en]

Many of the known xylose-fermenting (X-F) yeasts are placed in the Scheffersomyces clade, a group of ascomycete yeasts that have been isolated from plant tissues and in association with lignicolous insects. We formally recognize fourteen species in this clade based on a maximum likelihood (ML) phylogenetic analysis using a multilocus dataset. This clade is divided into three subclades, each of which exhibits the biochemical ability to ferment cellobiose or xylose. New combinations are made for seven species of Candida in the clade, and three X-F taxa associated with rotted hardwood are described: Scheffersomyces illinoinensis (type strain NRRL Y-48827T = CBS 12624), Scheffersomyces quercinus (type strain NRRL Y-48825T = CBS 12625), and Scheffersomyces virginianus (type strain NRRL Y-48822T = CBS 12626). The new X-F species are distinctive based on their position in the multilocus phylogenetic analysis and biochemical and morphological characters. The molecular characterization of xylose reductase (XR) indicates that the regions surrounding the conserved domain contain mutations that may enhance the performance of the enzyme in X-F yeasts. The phylogenetic reconstruction using XYL1 or RPB1 was identical to the multilocus analysis, and these loci have potential for rapid identification of cryptic species in this clade.

Place, publisher, year, edition, pages
2012. Vol. 7, no 6, e39128- p.
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-207284DOI: 10.1371/journal.pone.0039128OAI: oai:DiVA.org:uu-207284DiVA: diva2:647554
Available from: 2013-09-11 Created: 2013-09-11 Last updated: 2013-11-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Urbina, Hector
In the same journal
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 189 hits
ReferencesLink to record
Permanent link

Direct link