Linkage maps of porcine Chromosomes 3, 6, and 9 based on 31 polymorphic markers |
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| Authors: | M Johansson H Ellegren L Marklund W Coppieters L Andersson |
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| Institution: | (1) Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Box 597, S-75124 Uppsala, Sweden;(2) Present address: Department of Animal Nutrition, Production, and Ethology, University of Ghent, Heidestraat 19, B-9820 Merelbeke, Belgium |
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| Abstract: | Linkage maps of porcine Chromosomes (Chrs) 3, 6, and 9, based on 31 polymorphic markers, are reported. The markers include 14 microsatellites, 12 RFLPs, three protein polymorphisms, and two blood group loci. The genetic interpretations of 11 RFLPs are documented. The markers were scored in a three-generation Wild Boar/Large White pedigree, and genetic maps were constructed on the basis of two-point and multi-point linkage analysis. Altogether the maps span a genetic distance of 216 cM, and previous physical assignments indicate that the linkage groups cover major parts of the three chromosomes. Significant differences in recombination rates between the sexes were observed for all three chromosomes. The recombination rate on the q arm of Chr 6 was markedly low. Sixteen loci are informative with regard to comparative mapping, that is, they have previously been mapped in the human and/or mouse genomes. |
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