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We report on the completion of an autosomal genetic linkage (GL) map of the domestic cat (Felis silvestris catus). Unlike two previous linkage maps of the cat constructed with a hybrid pedigree between the domestic cat and the Asian leopard cat, this map was generated entirely with domestic cats, using a large multi-generational pedigree (n=256) maintained by the Nestlé Purina PetCare Company. Four...
Genetic variation in cat breeds was assessed utilizing a panel of short tandem repeat (STR) loci genotyped in 38 cat breeds and 284 single-nucleotide polymorphisms (SNPs) genotyped in 24 breeds. Population structure in cat breeds generally reflects their recent ancestry and absence of strong breed barriers between some breeds. There is a wide range in the robustness of population definition, from...
We report the construction of a 1.5-Mb-resolution radiation hybrid map of the domestic cat genome. This new map includes novel microsatellite loci and markers derived from the 2X genome sequence that target previous gaps in the feline–human comparative map. Ninety-six percent of the 1793 cat markers we mapped have identifiable orthologues in the canine and human genome sequences. The updated autosomal...
Three proteins have been described in humans and mice as being essential for even distribution, transport, and translocation of pigment granules, with defects in these molecules giving rise to lighter skin/coat color. The dilute phenotype in domestic cats affects both eumelanin and phaeomelanin pigment pathways; for example, black pigmentation combined with dilute appears gray and orange pigments...
The genomes of nonhuman primates are powerful references for better understanding the recent evolution of the human genome. Here we compare the order of 802 genomic markers mapped in a rhesus macaque (Macaca mulatta) radiation hybrid panel with the human genome, allowing for nearly complete cross-reference to the human genome at an average resolution of 3.5 Mb. At least 23 large-scale chromosomal...
Of the nonprimate mammalian species with developing comparative gene maps, the feline gene map (Felis catus,Order Carnivora, 2N= 38) displays the highest level of syntenic conservation with humans, with as few as 10 translocation exchanges discriminating the human and feline genome organization. To extend this model, a genetic linkage map of microsatellite loci in the feline genome has been constructed...
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