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22대 대한민국 국회 국회정보길라잡이 국회의원검색
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The objective of this study was to identify the quantitative trait loci (QTLs) for 66 economically important traits in pig chromosomes (SSC) 6 and 7. Sixty-six traits were recorded in 1,111 F2 animals from a Jeju native × Landrace pig resource population. Using a 13 microsatellite (MS) marker set, we conducted parentage tests for the resource population to confirm correctness of pedigree information collected. All pigs in this experimental population were genotyped for 15 and 13 MS markers on SSC 6 and 7 respectively. Linkage analysis was performed using CRI-MAP version 2.4 (Green et al., 1990) with the build option. As a result, the total length of the SSC6 sex-average linkage map was estimated as 159.4 cM, and that of SSC7 was 145.9 cM. Only once application of the build option was able to build the linkage maps. In addition, the marker order was correctly and the distance was similarly matched with the MARC linkage map. QTL detection was conducted using the least-squares regression interval mapping. As a result, 31 QTLs were significantly detected at experiment-wide levels. The 0.01% experiment-wise level was obtained for 16 QTLs―140dWT, HCWT, MARB, ONLYEMA, ALLEMA, 45RIBBFT, 1112TIBBFT, PUFA on SSC6 and CRCL, ALT, BGLOB, BGPT, 1112RIBBFT, FA-C17:0, MUFA, and PUFA on SSC7. Five QTLs were significant at chromosome-wide levels. The 0.01% chromosome-wise QTL was BGLOB on SSC6.

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