DNA polymorphisms at α-Gpdh locus of Drosophila melanogaster in Korean population
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概要
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Restriction site variation in 18-kb region including the Gpdh (sn-glycerol-3-phosphate dehydrogenase) locus has been assessed in 27 isofemale lines, 12 lines from the Chounan population and 15 lines from the Pusan population in Korea. Of the 25 restriction sites that were scored, 5 sites were polymorphic (20.0%): PstI (-2.35), XbaI (-1.7), HindIII (0.0), HindIII (+0.25), and PstI (+5.7). Two insertions (I) and three deletions (D) were detected. All the restriction sites and length polymorphisms were located in introns and outside regions of the Gpdh structure gene, the area from -7.0 site to -5.5 site. The proportion of segregating nucleotides, p, for all 27 lines was 0.019 and the estimated heterozygosity per nucleotide pair, was 0.013. Sixteen kinds of restriction map haplotypes of all lines analyzed were detected. Few lines were identical at the restriction map level. The estimated haplotype diversity, h, was 0.968. The haplotype diversity (0.997) of GpdhFF bearing chromosomes was slightly higher than that (0.982) of GpdhSS chromosomes. Analysis for a linkage disequilibria between the polymorphism also showed that HindIII (+0.25) vs. I (a) and PstI (-2.35) vs. D (a) have relatively high level of the linkage disequilibria. There were no significant relationship between restriction site polymorphism and GPDH activity in 27 second-chromosome lines; however, there was an apparent difference in the effect of length variation on GPDH activity. The activity of deletion-bearing lines was lower than that of deletion-free lines, while there was no effect of insertion on activity. Duplication of Gpdh was observed in about one-third of the 27 isofemale lines. The duplication-bearing lines in both populations had higher levels of GPDH activity and GPDH CRM than duplication-free lines. In a further investigation of the duplication structure, the duplication of Korean populations was shown to have a similar structure to other populations investigated (Symonds and Gibson, 1992; Takano et al., 1989).
- 日本遺伝学会の論文
著者
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Park Kwang
Department Of Oral Biology Oral Cancer Research Institute Oral Science Research Institute
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Lee S‐h
Hanyang Univ. Seoul Kor
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Park Kwang
Department Of Microbiology College Of Medicine Korea University
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KANG Soon-Ja
Department of Science Education, College of Education Ewha Womans University
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LEE Sook-Hee
Department of Science Education, College of Education Ewha Womans University
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Kang Soon-ja
Department Of Science Education College Of Education Ewha Womans University
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Lee Sook-hee
Department Of Science Education College Of Education Ewha Womans University
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Park Kwang
Department Of Chemical Engineering And Polymer Technology Institute Sungkyunkwan University
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