The scientists consider the effect to be very unique. “The mutation is at a frequency of 26 percent in the Solomon Islands, is absent outside of Oceania, represents a strong common genetic effect on a complex human phenotype, and highlights the importance of examining genetic associations worldwide,” said the abstract of the report.
The team was stunned by their findings. “They have this very dark skin and bright blond hair. It was mind-blowing,” Sean Myles, one of the researchers, told the Daily Mail. “As a geneticist on the beach watching the kids playing, you count up the frequency of kids with blond hair, and say, ‘Wow, it’s 5 to 10 percent’.”
Eimear Kenny, co-author of the study, has similar feelings. “‘Within a week we had our initial result. It was such a striking signal pointing to a single gene — a result you could hang your hat on,” he said. “That rarely happens in science.”
All genetic variations or mutation come from the original Afrikan stock.