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Detection of Quantitative Trait Loci Affecting Fat Deposition Traits in Pigs

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Authors
Choi, B.H.; Lee, K.T.; Lee, H.J.; Jang, G.W.; Lee, H.Y.; Cho, B.W.; Han, Jae Yong; Kim, T.H.
Issue Date
2012
Publisher
The Asian-australasian Association of Animal
Citation
Asian-australasian Journal of Animal Sciences, vol.25 no.11, pp. 1507-1510
Keywords
Quantitative Trait LociPigIntramuscular FatBody FatMicrosatellite Marker
Description
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License http://creativecommons.org/licenses/by-nc/3.0/ which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Quantitative trait loci (QTL) associated with fat deposition traits in pigs are important gene positions in a chromosome that influence meat quality of pork. For QTL study, a three generation resource population was constructed from a cross between Korean native boars and Landrace sows. A total of 240 F2 animals from intercross of F1 were produced. 80 microsatellite markers covering chromosomes 1 to 10 were selected to genotype the resource population. Intervals between adjacent markers were approximately 19 cM. Linkage analysis was performed using CRIMAP software version 2.4 with a FIXED option to obtain the map distances. For QTL analysis, the public web-based software, QTL express (http://www.qtl.cap.ed.ac.uk) was used. Two significant and two suggestive QTL were identified on SSC 6, 7, and 8 as affecting body fat and IMF traits. For QTL affecting IMF, the most significant association was detected between marker sw71 and sw1881 on SSC 6, and a suggestive QTL was identified between sw268 and sw205 on SSC8. These QTL accounted for 26.58% and 12.31% of the phenotypic variance, respectively. A significant QTL affecting IMF was detected at position 105 cM between markers sw71 and sw1881 on SSC 6.
ISSN
1011-2367
Language
English
URI
https://hdl.handle.net/10371/100342
DOI
https://doi.org/10.5713/ajas.2012.12116
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College of Agriculture and Life Sciences (농업생명과학대학)Dept. of Food and Animal Biotechnology (식품·동물생명공학부)Journal Papers (저널논문_식품·동물생명공학부)
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