Testing the sensory trade-off hypothesis in New World bats.

摘要: Detection of evolutionary shifts in sensory systems is challenging. By adopting a molecular approach, our earlier study proposed trade-off hypothesis between loss colour vision and an origin high-duty-cycle (HDC) echolocation Old World bats. Here, we test the New bats, which include HDC echolocators that are distantly related to echolocators, as well vampire have infrared system apparently unique among Through sequencing short-wavelength opsin gene (SWS1) 16 species (29 individuals) identified novel SWS1 polymorphism echolocator: one allele pseudogenized but other intact, while both alleles either intact or individuals. Strikingly, were found be all three Since pseudogenization, transcriptional translational changes could separately result functional gene, indicates dichromatic Thus, same appears repeatedly occurred two divergent lineages may also been traded off against sense