title: Alignment of the PiGMaP and USDA linkage maps of porcine chromosomes 2 and 5.
abstract: The PiGMaP and USDA porcine linkage maps for chromosomes 2 and 5 have been aligned by typing five USDA microsatellite markers from chromosomes 2 and 4 from chromosome 5 on the PiGMaP reference families. The markers in the two maps can be successfully aligned except for Sw395 on chromosome 2, which is the end-most marker in the USDA map 22 cM remote from the next marker, but which maps to a more central location and in the same position as Sw776 in the PiGMaP families. The mapping of four additional chromosome 5 markers has enabled amalgamation of the two previously separate PiGMaP linkage groups assigned to chromosome 5 and has more than doubled the length of its map. The USDA map of chromosome 5 is considerably shorter than the revised PiGMaP version, particularly between DAGK and Sw1071, where the corresponding lengths are 9 cM versus 33 cM.
mesh_terms: D000818:Animals; D002874:Chromosome Mapping; D004276:DNA, Satellite / Q000235:genetics; D016208:Databases, Factual; D005260:Female; D008040:Genetic Linkage; D005819:Genetic Markers; D008297:Male; D012727:Sex Characteristics; D013552:Swine / Q000235:genetics*; D014481:United States; D016885:United States Department of Agriculture
chemical_list: D004276:DNA, Satellite; D005819:Genetic Markers