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The genetic insertion behind peppered moths’ dark wings
Quanta Magazine reports that researchers found an inserted genetic fragment in nearly all the black-winged moths they studied, but not in white-winged moths. How it produced dark wings remains unknown.
TLDR
Quanta Magazine reports that researchers sequenced hundreds of peppered moth genomes and found a genetic fragment inserted into a wing-development gene in nearly all the black-winged moths, but absent in white-winged moths. They estimated the insertion occurred in 1819, after rising pollution had begun changing the moths’ habitat. How the fragment led to dark wings remains unknown.
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