Distribution of marine birnavirus (MABV) in marine organisms from Okinawa,Japan, and a unique sequence variation of the VP2/NS region |
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| Authors: | Manami Inaba Satoru Suzuki Shin-Ichi Kitamura Norichika Kumazawa Hiroshi Kodama |
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| Institution: | (1) Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama 790-8577, Japan;(2) Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan;(3) Division of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 599-8531, Japan |
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| Abstract: | Distribution of marine type of Aquabirnavirus (MABV) was examined in shellfish and fish from Okinawa and Ishigaki Islands,
Japan, where water temperature is higher than 25°C through the year. Genome detection and virus isolation were performed for
shellfish and fish samples, and the results revealed the prevalent distribution of MABV in diverse species in the area, although
isolation was not frequently. Detection rate of MABV genome in bivalves was higher than gastropods, which was similar result
to former report in mainland of Japan. Furthermore, the unique five-nucleotide deletion was found with a high rate of occurrence
in the MABV genome from shellfish and fish. This study showed distribution status of MABV in organisms in subtropical waters
by wide monitoring, and discovered new genome variation in VP2/NS region of this virus. |
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| Keywords: | birnavirus shellfish marine Okinawa |
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