NEW YORK (GenomeWeb) – The genetic architecture of human skin pigmentation is more complex than previously thought, according to a new study.

Previous studies of genes involved in skin pigmentation have relied on analyses of people of Eurasian or admixed African-American ancestry, and found pigmentation to be the work of about a dozen genes. But by studying an African population that exhibits a range of pigmentation levels, a State University of New York at Stony Brook-led team of researchers found the genetics of skin tone to be more complicated.

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Researchers hope to tease out the signature effects that different carcinogens leave on the genome to determine their contributions to disease, Mosaic reports.

An Imperial College London-led team reports that it was able to use a gene drive to control a population of lab mosquitos.

The Wall Street Journal looks into the cost of new gene therapies.

In PNAS this week: genomic effects of silver fox domestication, limited effect of mitochondrial mutations on aging in fruit flies, and more.