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Direct evidence of multiple paternities in natural population of viviparous Japanese surfperch by allelic markers of microsatellite DNA loci
Authors:Motohiro Takagi  Kumiko Sakai  Nobuhiko Taniguchi
Institution:(1) Faculty of Agriculture, Ehime University, 790-8566 Matsuyama, Ehime, Japan;(2) Graduate School of Agricultural Science, Tohoku University, 981-8555 Sendai, Miyagi, Japan;(3) Present address: Research Institute of Marine Bioresources, Fukuyama University, 722-2101 Onomichi, Hiroshima, Japan
Abstract:This study was performed to obtain information on the occurrence of multiple paternities in three species of viviparous Japanese surfperch using allelic markers of microsatellite DNA loci. Direct evidence for multiple fertilizations was established by reconstructing paternal genotypes from the progeny of gravid females. Multiple paternities were ascertained in five of 10 broods of Ditrema temmincki and in three of nine broods of Neoditrema ransonneti, but not in Ditrema viride. The number of patrilines detected in the progeny of D. temmincki and N. ransonneti females were two or three, respectively, as determined by the GERUD v2.0 algorithm for reconstructing parental genotypes from half-sib progeny arrays.
Keywords:Ditrema            Embiotocidae  microsatellite DNA  multiple paternities            Neoditrema            viviparous surfperch
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