Island's Genetic Quirk: Dark Skin, Blond Hair
By Sindyan N. Bhanoo,
New York Times
| 05. 03. 2012
In the Solomon Islands, about 10 percent of the dark-skinned indigenous people have strikingly blond hair. Some islanders theorize that the coloring could be a result of excess sun exposure, or a diet rich in fish. Another explanation is that the blondness was inherited from distant ancestors — European traders and explorers who came to the islands.
But that’s not the case, researchers now report. The gene variant responsible for blond hair in the islanders is distinctly different from the gene that causes blond hair in Europeans.
“For me it breaks down any kind of simple notions you might have about race,” said Carlos Bustamante, a geneticist at Stanford University. “Humans are beautifully diverse, and this is just the tip of the iceberg.”
Dr. Bustamante and his colleagues published their findings in the current issue of the journal Science.
The researcher analyzed saliva samples from more than 1,000 islanders, looking closely at a subset of the samples — from 43 blond and 42 dark-haired islanders.
They were soon able to identify the single gene responsible for the variance in hair...
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