{"refrec":{"BRefID":123125,"RR":"<b>Okimoto, T.; Hara, K.; Ishihara, T.; Aranishi, F.</b> (2008). PCR-RFLP genotyping for Japanese and Korean populations of Pacific oyster using mitochondrial DNA noncoding region. <i>Aquat. Ecol. 42(1)</i>: 1-4. <a href=\"https://dx.doi.org/10.1007/s10452-006-9064-0\" target=\"_blank\">https://dx.doi.org/10.1007/s10452-006-9064-0</a>","BEntID":117153,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Ecol. 42(1)</i>: 1-4. <a href=\"https://dx.doi.org/10.1007/s10452-006-9064-0\" target=\"_blank\">https://dx.doi.org/10.1007/s10452-006-9064-0</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Okimoto, T.; Hara, K.; Ishihara, T.; Aranishi, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Okimoto, T. <i>et al.</i>","Englishabstract":"Production of Pacific oyster <i>Crassostrea gigas</i> in Miyagi and Hiroshima (Japan) has gradually increased, with a marked increase in imported oysters from Goseong (Korea), and then cultured oysters of the Miyagi, Hiroshima, and Goseong populations accounting for most oyster consumption in Japan. In this study, we developed a simple PCR-RFLP analysis of a mitochondrial DNA noncoding region (mtDNA-NCR) for differentiating cultured oysters of these populations. PCR amplification yielded a 818 bp fragment comprising the entire mtDNA-NCR and parts of adjacent tRNA<sup>Cys</sup> and tRNA<sup>Asn</sup> genes from all the specimens. By use of a wide restriction test using 30 different restriction enzymes, only a single enzyme only, <i>Alu</i>I, produced a unique RFLP pattern enabling us to discriminate Miyagi and Hiroshima oysters from Goseong oysters. This difference is probably because of nucleotide alteration at the presumptive <i>Alu</i>I recognizing site on position 439 of the mtDNA-NCR. Our simple, robust and cost-effective PCR-RFLP analysis is potentially useful for population genetic investigation of cultured Pacific oyster, particularly when large numbers of specimens must be analyzed. 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