Identification of the sex-linked locus in yellowtail, Seriola quinqueradiata

The sex-determining system of yellowtail (Japanese amberjack), Seriola quinqueradiata, is not known. In this study, we identified the sex-linked locus in yellowtail and we characterized the sex-determining system by genetic linkage analysis conducted on 19 female and 19 male progenies from a single...

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Bibliographic Details
Published in:Aquaculture 2010, Vol.308, p.S51-S55
Main Authors: Fuji, Kanako, Yoshida, Kazunori, Hattori, Keita, Ozaki, Akiyuki, Araki, Kazuo, Okauchi, Masanori, Kubota, Satoshi, Okamoto, Nobuaki, Sakamoto, Takashi
Format: Article
Language:English
Subjects:
alleles
Aquaculture
chromosome mapping
Correlation analysis
Fish
genetic markers
Genetic sex determination
Genotype & phenotype
loci
Marine
microsatellite repeats
parents
progeny
Seriola quinqueradiata
sex determination
sex linkage
Sex-linked marker
Yellowtail (Japanese amberjack)
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Summary:The sex-determining system of yellowtail (Japanese amberjack), Seriola quinqueradiata, is not known. In this study, we identified the sex-linked locus in yellowtail and we characterized the sex-determining system by genetic linkage analysis conducted on 19 female and 19 male progenies from a single family. The associations between phenotypic sex and genotypic data of 71 microsatellite markers selected from yellowtail genetic linkage map were tested. The putative sex-determining locus is located between locus Sequ21 and locus Sequ17 in LG12, and the sex-linked alleles were inherited from the female parent. This result suggests that yellowtail has a ZZ–ZW sex-determining system, and that it would be possible to use these sex-linked markers to discriminate the sexes.
ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2010.06.035