Parallel and convergent evolution of the dim-light vision gene RH1 in bats (Order: Chiroptera).

PloS One
Yong-Yi ShenYa-Ping Zhang

Abstract

Rhodopsin, encoded by the gene Rhodopsin (RH1), is extremely sensitive to light, and is responsible for dim-light vision. Bats are nocturnal mammals that inhabit poor light environments. Megabats (Old-World fruit bats) generally have well-developed eyes, while microbats (insectivorous bats) have developed echolocation and in general their eyes were degraded, however, dramatic differences in the eyes, and their reliance on vision, exist in this group. In this study, we examined the rod opsin gene (RH1), and compared its evolution to that of two cone opsin genes (SWS1 and M/LWS). While phylogenetic reconstruction with the cone opsin genes SWS1 and M/LWS generated a species tree in accord with expectations, the RH1 gene tree united Pteropodidae (Old-World fruit bats) and Yangochiroptera, with very high bootstrap values, suggesting the possibility of convergent evolution. The hypothesis of convergent evolution was further supported when nonsynonymous sites or amino acid sequences were used to construct phylogenies. Reconstructed RH1 sequences at internal nodes of the bat species phylogeny showed that: (1) Old-World fruit bats share an amino acid change (S270G) with the tomb bat; (2) Miniopterus share two amino acid changes (V104I, ...Continue Reading

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Citations

Feb 11, 2014·Molecular Biology and Evolution·Ryan K SchottBelinda S W Chang
Aug 17, 2010·PloS One·Phillip CasseyTim M Blackburn
Sep 18, 2013·Journal of Chemical Neuroanatomy·Leigh-Anne DellPaul R Manger
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Jan 1, 2014·FEBS Letters·Wei-Ming AiYong-Yi Shen
Nov 3, 2016·Molecular Biology and Evolution·Dong DongShuyi Zhang
Feb 22, 2017·Journal of Molecular Evolution·Weizhao YangJinzhong Fu
Nov 27, 2018·Molecular Biology and Evolution·Bruno F SimõesEmma C Teeling

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Methods Mentioned

BETA
PCR

Software Mentioned

Ensembl
CLUSTALX
PAUP
DNAstar Seqman
Modeltest
PAML
DNASTAR
Codeml
MrBayes

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