Genetic Evidence That Two Types of Retroelements Evolved through Different Pathways in Ectomycorrhizal HomobasidiomycetesTricholomaspp. | Zendy

Hitoshi Murata | Zendy; Katsuhiko Babasaki | Zendy; Yasumasa Miyazaki | Zendy; Akiyoshi Yamada | Zendy

Open Access

Genetic Evidence That Two Types of Retroelements Evolved through Different Pathways in Ectomycorrhizal HomobasidiomycetesTricholomaspp.

Author(s) -

Hitoshi Murata,

Katsuhiko Babasaki,

Yasumasa Miyazaki,

Akiyoshi Yamada

Publication year - 2002

Publication title -

bioscience biotechnology and biochemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.509

H-Index - 116

eISSN - 1347-6947

pISSN - 0916-8451

DOI - 10.1271/bbb.66.1880

Subject(s) - biology , phylogenetic tree , gene , genetics , clone (java method) , fungus , phylogenetics , evolutionary biology , botany

We designed a polymerase chain reaction that allows us to clone two types of putative reverse transcriptase genes from 11 species of ectomycorrhizal basidiomycetes that belong to the genus Tricholoma. One corresponds to the putative gene of marY1, a long terminal repeat (LTR) retroelement from Tricholoma matsutake, and the other, marY2N, a LINE-like non-LTR (L1-like) retroelement from this fungus. Putative protein products predicted from nucleotide sequencing of cloned fragments were phylogenetically analyzed. marY1-like elements had a parallel phylogenetic relationship with no apparent correlation to a current taxonomic profile, while marY2N-like elements showed a vertical one in relation to host-plant species. Data suggest that marY1-like elements and marY2N-like elements have evolved independently, and the evolution of marY1-like elements could have occurred later than the evolution of marY2N-like elements in the species of Tricholoma.

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