Endochitinase gene-based phylogenetic analysis of Trichoderma

DNA sequences of the single-copy gene coding for the 42 kDa endochitinase enzyme (EC 3.2.1.14) were used for phylogenetic analysis in Trichoderma. A set of 12 primers was developed and the entire gene was sequenced for 16 strains, and nucleotide and deduced amino acid sequences were compared to data...

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Bibliographic Details
Published in:Microbiological research 2000-04, Vol.155 (1), p.7-15
Main Authors: Lieckfeldt, Elke, Cavignac, Yolaine, Fekete, Csaba, Börner, Thomas
Format: Article
Language:English
Subjects:
Biological and medical sciences
Chitinases - genetics
Chitinases - metabolism
DNA, Ribosomal - genetics
endochitinase
Fundamental and applied biological sciences. Psychology
Gene Amplification
Genes, Fungal
Genetic Variation
Hypocrea
Microbiology
molecular phylogeny
Molecular Sequence Data
Mycology
Phylogeny
Polymerase Chain Reaction
Sequence Analysis, DNA
Systematics
Trichoderma
Trichoderma - classification
Trichoderma - enzymology
Trichoderma - genetics
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Summary:DNA sequences of the single-copy gene coding for the 42 kDa endochitinase enzyme (EC 3.2.1.14) were used for phylogenetic analysis in Trichoderma. A set of 12 primers was developed and the entire gene was sequenced for 16 strains, and nucleotide and deduced amino acid sequences were compared to data from GenBank for additional Trichoderma strains. Analysis of the sequences revealed parsimony informative variation from 2.4 to 43.6% depending on the part of the gene (exons/introns) and the taxonomic level considered. Results are discussed in comparison to previous data from ITS-1 and ITS-2 rDNA sequencing and suggest the 42 kDa endochitinase gene as a potential molecular marker for reconstructing phylogenetic relationships in the genus Trichoderma at species level.
ISSN:0944-5013
1618-0623
DOI:10.1016/S0944-5013(00)80016-6