CARLOS R. INFANTE(See "Shared enhancer activity in the limbs and phallus and functional divergence of a limb-genital cis-regulatory element in snakes," Developmental Cell, 2015.)
Image of the Day: Snake Embryo
In corn snake (Pantherophis guttatus) embyros like this one, genes once associated exclusively with limb development are now known to play roles in developing external genitalia.
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