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Ribosomal Intergenic Spacer 1 Based Characterization of Button Mushroom (Agaricus bisporus) Strains.


ABSTRACT: Breeding the button mushroom requires genetic information about its strains. This study was undertaken to genetically characterize four domestically bred button mushroom strains (Saea, Saejung, Saedo, Saeyeon cultivars) and to assess the possibility of using the intergenic spacer 1 (IGS1) region of rDNA as a genetically variable region in the genetic characterization. For the experiment, 34 strains of Agaricus bisporus, two strains of A. bitorquis, and one strain of A. silvaticus, from 17 countries were used. Nucleotide sequence analysis of IGS1 rDNA in these 37 Agaricus strains confirmed that genetic variations exist, not only among the four domestic strains, but also between the four domestic strains and foreign strains. Crossing two different haploid strains of A. bisporus seems to generate genetic variation in the IGS1 region in their off-spring haploid strains. Phylogenetic analysis based on the IGS1 sequence revealed all A. bisporus strains could be differentiated from A. silvaticus and A. bitorquis strains. Five genetic groups were resolved among A. bisporus strains. Saejung and Saeyeon cultivars formed a separate genetic group. Our results suggest that IGS1 could be complementarily applied in the polymorphism analysis of button mushroom.

SUBMITTER: Kwon HW 

PROVIDER: S-EPMC5287165 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Ribosomal Intergenic Spacer 1 Based Characterization of Button Mushroom (<i>Agaricus bisporus</i>) Strains.

Kwon Hyuk Woo HW   Choi Min Ah MA   Kim Dae Wook DW   Oh Youn-Lee YL   Hyun Min Woo MW   Kong Won-Sik WS   Kim Seong Hwan SH  

Mycobiology 20161231 4


Breeding the button mushroom requires genetic information about its strains. This study was undertaken to genetically characterize four domestically bred button mushroom strains (Saea, Saejung, Saedo, Saeyeon cultivars) and to assess the possibility of using the intergenic spacer 1 (IGS1) region of rDNA as a genetically variable region in the genetic characterization. For the experiment, 34 strains of <i>Agaricus bisporus</i>, two strains of <i>A. bitorquis</i>, and one strain of <i>A. silvaticu  ...[more]

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