Dog Coat types Determined by Gene Type

The wide range of coat textures in purebred dogs is determined by variant genes. Before a recent study published in the journal Science, scientist knew little about the genes influencing canine coat length growth pattern and texture. Researchers from the National Human Genome Research Institute studied the DNA of 1,000 dogs representing 80 different breeds. They compared the results to descriptions of various coat types. The study found that combinations of various forms (RSP02, FGF5, and KRT71) account for seven major coat types in purebreds. The gene RSP02 results in wiry hair. The gene FGF5 results in silky or long fluffy hair, and the gene KRT71 produces a curly coated dog.

Researchers believe that carefully controlled breeding of purebreds offer advantages in pinpointing genes particular traits. As well, it may help in studying diseases. This could be great news in determine cures for diseases that effect canine and human alike such as cancer!

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