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Picky-eater Flies Losing Smell Genes A UC Davis researcher is hot on the scent of some lost fruit fly genes. According to population biology graduate student Carolyn McBride, the specialist fruit fly Drosophila sechellia is losing genes for smell and taste receptors 10 times faster than its generalist relative Drosophila simulans. The findings could help researchers understand how some insect pests adapt to feeding on a particular plant.
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