期刊
JOURNAL OF WOOD SCIENCE
卷 59, 期 5, 页码 432-441出版社
SPRINGER JAPAN KK
DOI: 10.1007/s10086-013-1349-z
关键词
Species identification; Melting temperature; Fungi; Real-time PCR; Nucleotide diversity
A method for identification and typing of wood rotting fungi using the melting temperature [T(m)] of DNA fragments coding rRNA (rDNA) was examined. The T(m)s of four DNA fragments, inter transcribed spacer (ITS) I, ITS II, and two partial fragments of 28S rDNA from each of 20 species of wood rotting fungi, were measured by melting curve analysis. The T(m) variation was large enough between species to enable identification based on the T(m) values. A pair of T(m)s of the ITS I region (between the primers ITS1 and ITS2) and the ITS II region (between the primers ITS3 and ITS4) had the highest resolution for identifying wood rotting fungi. To assess about the diversity of the T(m), intraspecific diversity of these DNA fragment sequences was evaluated using test strain sequences and data from the GenBank/EMBL/DDBJ biological database. The intraspecific diversity of T(m) was considered to be small because the nucleotide diversity of each fragment was small within the species.
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