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Non-concerted ITS evolution in fungi, as revealed from the important medicinal fungus Ophiocordyceps sinensis

The internal transcribed spacer (ITS) of nuclear ribosomal DNA (nrDNA) has been widely used as a molecular marker in phylogenetic studies and has been selected as a DNA barcode for fungi. It is generally believed that nrDNA conforms to concerted evolution in most eukaryotes; however, intraindividual... Full description

Journal Title: Molecular Phylogenetics and Evolution August 2013, Vol.68(2), pp.373-379
Main Author: Li, Yi
Other Authors: Jiao, Lei , Yao, Yi-Jian
Format: Electronic Article Electronic Article
Language: English
Subjects:
Its
ID: ISSN: 1055-7903 ; E-ISSN: 1095-9513 ; DOI: 10.1016/j.ympev.2013.04.010
Link: https://www.sciencedirect.com/science/article/pii/S1055790313001607
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recordid: elsevier_sdoi_10_1016_j_ympev_2013_04_010
title: Non-concerted ITS evolution in fungi, as revealed from the important medicinal fungus Ophiocordyceps sinensis
format: Article
creator:
  • Li, Yi
  • Jiao, Lei
  • Yao, Yi-Jian
subjects:
  • Non-Concerted Evolution
  • Its
  • Pseudogene
  • Ophiocordyceps Sinensis
  • Biology
ispartof: Molecular Phylogenetics and Evolution, August 2013, Vol.68(2), pp.373-379
description: The internal transcribed spacer (ITS) of nuclear ribosomal DNA (nrDNA) has been widely used as a molecular marker in phylogenetic studies and has been selected as a DNA barcode for fungi. It is generally believed that nrDNA conforms to concerted evolution in most eukaryotes; however, intraindividual–intraspecific polymorphisms of this region were reported in various organisms, suggesting a non-concerted evolutionary process. In , one of the most valuable medicinal fungi, a remarkable variation of the ITS region has been revealed. Some highly divergent sequences were thought to represent cryptic species, different species or genotypes in previous studies. To clarify the unusual ITS polymorphisms observed in , specific primers were designed to amplify ITS paralogs from pure cultures of both single-ascospore and tissue isolates in this study. All of the available ITS sequences, including those generated by this group and those in GenBank, were...
language: eng
source:
identifier: ISSN: 1055-7903 ; E-ISSN: 1095-9513 ; DOI: 10.1016/j.ympev.2013.04.010
fulltext: fulltext
issn:
  • 1055-7903
  • 10557903
  • 1095-9513
  • 10959513
url: Link


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titleNon-concerted ITS evolution in fungi, as revealed from the important medicinal fungus Ophiocordyceps sinensis
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subjectNon-Concerted Evolution ; Its ; Pseudogene ; Ophiocordyceps Sinensis ; Biology
descriptionThe internal transcribed spacer (ITS) of nuclear ribosomal DNA (nrDNA) has been widely used as a molecular marker in phylogenetic studies and has been selected as a DNA barcode for fungi. It is generally believed that nrDNA conforms to concerted evolution in most eukaryotes; however, intraindividual–intraspecific polymorphisms of this region were reported in various organisms, suggesting a non-concerted evolutionary process. In , one of the most valuable medicinal fungi, a remarkable variation of the ITS region has been revealed. Some highly divergent sequences were thought to represent cryptic species, different species or genotypes in previous studies. To clarify the unusual ITS polymorphisms observed in , specific primers were designed to amplify ITS paralogs from pure cultures of both single-ascospore and tissue isolates in this study. All of the available ITS sequences, including those generated by this group and those in GenBank, were...
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The internal transcribed spacer (ITS) of nuclear ribosomal DNA (nrDNA) has been widely used as a molecular marker in phylogenetic studies and has been selected as a DNA barcode for fungi. It is generally believed that nrDNA conforms to concerted evolution in most eukaryotes; however, intraindividual–intraspecific polymorphisms of this region were reported in various organisms, suggesting a non-concerted evolutionary process. In

, one of the most valuable medicinal fungi, a remarkable variation of the ITS region has been revealed. Some highly divergent sequences were thought to represent cryptic species, different species or genotypes in previous studies. To clarify the unusual ITS polymorphisms observed in

, specific primers were designed to amplify ITS paralogs from pure cultures of both single-ascospore and tissue isolates in this study. All of the available ITS sequences, including those generated by this group and those in GenBank, were...

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abstract

The internal transcribed spacer (ITS) of nuclear ribosomal DNA (nrDNA) has been widely used as a molecular marker in phylogenetic studies and has been selected as a DNA barcode for fungi. It is generally believed that nrDNA conforms to concerted evolution in most eukaryotes; however, intraindividual–intraspecific polymorphisms of this region were reported in various organisms, suggesting a non-concerted evolutionary process. In

, one of the most valuable medicinal fungi, a remarkable variation of the ITS region has been revealed. Some highly divergent sequences were thought to represent cryptic species, different species or genotypes in previous studies. To clarify the unusual ITS polymorphisms observed in

, specific primers were designed to amplify ITS paralogs from pure cultures of both single-ascospore and tissue isolates in this study. All of the available ITS sequences, including those generated by this group and those in GenBank, were...

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lad01Molecular Phylogenetics and Evolution
date2013-08