期刊
FEMS YEAST RESEARCH
卷 5, 期 1, 页码 73-79出版社
OXFORD UNIV PRESS
DOI: 10.1016/j.femsyr.2004.07.001
关键词
SEDI; Saccharomyces; gene length polymorphism; PCR-RFLP; yeast identification
The SED1 gene is characterised by abundant length and sequence polymorphisms within the species Saccharomyces cerevisiae, due to the expansion and contraction of minisatellite-like sequences located within the ORF. A survey of the SED1 ORFs of 26 yeasts ascribed to the. species S. cerevisiae, S. bayanus, S. pastorianus, S. paradoxus, S. cariocanus, S. kudriavzevii and S. mikatae revealed SED1 gene length and sequence variations between the species of the genus. Moreover, results obtained by Neighbour-Joining analysis of a dataset comprising the partial predicted amino acid sequences of SED1 ORFs agreed with the phylogenetic relationships of the seven species. Thus, the SEDI gene may represent a further molecular target for the identification of Saccharomyces isolates. (C) 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
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