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Aboriginal women blonde hair

The common occurrence of blond hair among the dark-skinned indigenous people of the Solomon Islands is due to a homegrown genetic variant distinct from the gene that leads to blond hair in Europeans, according to a new study from the Stanford University School of Medicine. The study identifying the gene responsible for blond hair in the Solomon Islands, a nation in the South Pacific, represents a rare case of simple genetics determining human appearance, and shows the importance of including understudied populations in gene mapping studies, said co-senior author Carlos D. Bustamante , PhD, professor of genetics at Stanford. The findings were published May 4 in Science. Globally, blond hair is rare, occurring with substantial frequency only in northern Europe and in Oceania, which includes the Solomon Islands and its neighbors.

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The hair color gene MC1R has at least seven variants in Europe, giving the continent a wide range of hair and eye shades. Based on a genetic research carried out at three Japanese universities, the date of the genetic mutation that resulted in blond hair in Europe has been isolated to about 11, years ago during the last ice age. In this way, high frequencies of light hair in northern latitudes are a result of the light skin adaptation to lower levels of solar radiation, which reduces the prevalence of rickets caused by vitamin D deficiency. The darker pigmentation at higher latitudes in certain ethnic groups such as the Inuit is explained by a greater proportion of seafood in their diet and by the climate which they live in, because in the polar climate there is more ice or snow on the ground, and this reflects the solar radiation onto the skin, making this environment lack the conditions for the person to have blond, brown or red hair, light skin and blue, grey or green eyes. An alternative hypothesis was presented by Canadian anthropologist Peter Frost, who claims blond hair evolved very quickly in a specific area at the end of the last ice age by means of sexual selection.

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However, there are groups of dark skin people who have naturally blonde hair also. Some of these groups include the Aboriginal Australians Aborigines and the Melanesians. I love this fact because it goes against the idea that one group or culture must look a certain way or stay in a certain category. The Aborigines have dark skin. Some of them also have blonde hair which tends to be straight, but can be curly.

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Case closed: blonde Melanesians understood By Razib Khan May 3, pm As a small child perusing old physical anthropology books I would occasionally stumble upon images of people of Oceanian stock with light hair color. I would wonder: is this a biological or cultural feature? In other words, were people bleaching their hair? If it was biological, was it heritable, or was it simply malnutrition? Another aspect of the phenotype was also straightforward: it did not seem that light hair color resulted in any concomitant lightening of the skin.

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Blonde Australian Aboriginals It's really frustrating when you can't find information via google, but, it just reminds you how shallow the the data mining of search engine crawlers can be. On this weblog people have mentioned blondeness among Australian Aboriginals multiple times, and ultimately we really haven't gotten anywhere no one has brought up novel data because no one has any information to offer aside from what they read in C. Coon's books when they were younger. There isn't much out there on the web. Luckily, I decided to check the local college library, and I found Joseph Birdsell's Microevolutionary Patterns in Aboriginal Australia , which has a large section addressing the issue of blondeness among the indigenous people of the antipodal continent.

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Can Aboriginal women blonde hair

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