Identical mutation found in grey horses
[2008-7-25]
Tag : grey can
Researchers in Sweden have discovered that grey horses carry anidentical mutation that can be traced back to a common ancestorthat lived thousands of years ago.
An international team led by researchers at Uppsala University saythis mutation also enhances the risk for melanoma. The paper isbeing published in the July issue of Nature Genetics.
Researchers say the great majority of white horses carry thedominant mutation 'greying with age'. A grey horse is born coloured(black, bay, brown or chestnut), but the greying process startsduring its first year and they are normally completely white by sixto eight years of age, but the skin remains pigmented. Thus, theprocess resembles greying in humans but the process is ultrafast inthese horses. The research presented now demonstrates that all greyhorses carry exactly the same mutation which must have beeninherited from a common ancestor.
Today, about one horse in ten carries the mutation for greying withage.
The study was led by Leif Andersson.
Researchers in Sweden have discovered that grey horses carry anidentical mutation that can be traced back to a common ancestorthat lived thousands of years ago.
An international team led by researchers at Uppsala University saythis mutation also enhances the risk for melanoma. The paper isbeing published in the July issue of Nature Genetics.
Researchers say the great majority of white horses carry thedominant mutation 'greying with age'. A grey horse is born coloured(black, bay, brown or chestnut), but the greying process startsduring its first year and they are normally completely white by sixto eight years of age, but the skin remains pigmented. Thus, theprocess resembles greying in humans but the process is ultrafast inthese horses. The research presented now demonstrates that all greyhorses carry exactly the same mutation which must have beeninherited from a common ancestor.
Today, about one horse in ten carries the mutation for greying withage.
The study was led by Leif Andersson.
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