Occurrence of dsRNA Mycovirus (LeV-FMRI0339) in the Edible Mushroom Lentinula edodes and Meiotic Stability of LeV-FMRI0339 among Monokaryotic Progeny

Autor: Jung-Mi Kim, Suk-Hyun Yun, Seung-Moon Park, Han-Gyu Ko, Dae-Hyuk Kim
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: The Plant Pathology Journal, Vol 29, Iss 4, Pp 460-464 (2013)
Druh dokumentu: article
ISSN: 1598-2254
DOI: 10.5423/PPJ.NT.03.2013.0037
Popis: dsRNA was found in malformed cultures of Lentinula edodes strain FMRI0339, one of the three most popular sawdust cultivated commercial strains of shiitake, and was also found in healthy-looking fruiting bodies and actively growing mycelia. Cloning of the partial genome of the dsRNA revealed the presence of the RdRp sequence of a novel L. edodes mycovirus (LeV), and sequence comparison of the cloned amplicon showed identical sequences sequence to known RNA-dependent RNA polymerase genes of LeV found in strain HKA. The meiotic stability of dsRNA was examined by measuring the ratio of the presence of dsRNA among sexual monokaryotic progeny. More than 40% of the monokaryotic progeny still contained the dsRNA, indicating the persistence of dsRNA during sexual reproduction. Comparing the mycelia growth of monokaryotic progeny suggested that there appeared to be a tendency toward a lower frequency of virus incidence in actively growing progeny.
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