Genomics of Sexual Selection
Bizarre features like the yellow, visor-shaped protrusion on the male, Anolis lizard to the left, are usually sexually dimorphic traits used in courting. These traits can be extremely powerful in driving divergent speciation, sometimes by the opposite sex developing preferences for nuances that can escape the human eye. With the advent of genome sequencing and comparative genome analysis, we could now look for signatures of sexual selection at the level of DNA as well.