Localization of the U2 linkage group of horses to ECA 3 using chromosome painting.
The U2 linkage group of horses includes the genes albumin (ALB), vitamin D binding protein (GC), mitochondrial glutamate oxaloacetate transaminase 2 (GOT2), and haptoglobin (HP) which are found on two human chromosomes, namely, 4 (HSA 4) and 16 (HSA 16). Likewise these genes are also found on two different chromosomes in mice, rats, and cattle. Chromosome painting demonstrated that only horse chromosome 3 (ECA 3) hybridized with whole chromosome paints for both HSA 4 and HSA 16. This indicated that the equine U2 linkage group occurs on ECA 3, spanning the centromere. This technique will be useful to study the chromosome rearrangements associated with speciation of the genus Equus.
Lear
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TL
Department of Veterinary Science, M. H. Gluck Equine Research Center, University of Kentucky, Lexington 40546, USA.
Bailey
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E
D000418:Albumins / Q000235:genetics; D000818:Animals; D001219:Aspartate Aminotransferases / Q000235:genetics; D002874:Chromosome Mapping; D004396:Coloring Agents; D008040:Genetic Linkage; D006242:Haptoglobins / Q000235:genetics; D006736:Horses / Q000235:genetics*; D006801:Humans; D017403:In Situ Hybridization; D014809:Vitamin D-Binding Protein / Q000235:genetics
D000418:Albumins; D004396:Coloring Agents; D006242:Haptoglobins; D014809:Vitamin D-Binding Protein; D001219:Aspartate Aminotransferases