Evolution of opsin genes reveals a functional role of vision in the echolocating little brown bat (myotis lucifugus)
文献类型：期刊论文
| 作者 | Zhao, Huabin1,2,3; Xu, Dong1; Zhou, Yingying1; Flanders, Jon1; Zhang, Shuyi1 |
| 刊名 | Biochemical systematics and ecology
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 37期号:3页码:154-161 |
| 关键词 | Opsin Vision Echolocation Evolution Purifying selection Little brown bat Echolocating bat |
| ISSN号 | 0305-1978 |
| DOI | 10.1016/j.bse.2009.03.001 |
| 通讯作者 | Zhang, shuyi(syzhang@bio.ecnu.edu.cn) |
| 英文摘要 | Echolocating bats are able to orientate, navigate and forage without visual cues. to probe the role of vision in bats, we studied the visual opsin genes from the echolocating little brown bat (myotis lucifugus). short-wave length sensitive (sws1) opsin, middle/long-wavelength sensitive (m/lws) opsin and rhodopsin cdna sequences were identified from the ensembl database and validated by the sequencing of genomic dna. we retrieved the published orthologous genes from eleven additional representative species of mammals from genbank and conducted an evolutionary analysis. we found that the m/lws opsin and rhodopsin genes were both under strong purifying selection, whereas the sws1 opsin gene has undergone positive selection at two amino acid sites and one lineage, though the main evolutionary force is still purifying selection. two-ratio model of the sws1 opsin gene revealed that the omega ratio for the little brown bat lineage was nearly three times lower than the background ratio, suggesting a much stronger functional constraint. our relative rate tests show the little brown bat has a lower nonsynonymous substitution rate than those in other mammals (on average 32% lower) for the sws1 opsin gene. however, no such significant differences were detected for the m/lws opsin and rhodopsin genes. the results of the relative ratio tests are consistent with that of tests for selection, showing a history of purifying selection on the little brown bat opsin genes. these findings suggest a functional role of vision in the little brown bat despite being nocturnal and using echolocation. we speculate that this echolocating bat may be able to use visual cues to orientate, navigate and forage at night, to discriminate color under moonlight and starlight conditions, or to avoid predation by diurnal raptors. crown copyright (c) 2009 published by elsevier ltd. all rights reserved. |
| WOS关键词 | SCHIFF-BASE COUNTERION ; GREEN COLOR-VISION ; ULTRAVIOLET VISION ; BOVINE RHODOPSIN ; MOLECULAR EVOLUTION ; VISUAL PIGMENTS ; VERTEBRATES ; GENETICS ; RED ; PHYLOGENETICS |
| WOS研究方向 | Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS类目 | Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000266960700003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2403216 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Shuyi |
| 作者单位 | 1.E China Normal Univ, Sch Life Sci, Shanghai 200062, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Zool, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Huabin,Xu, Dong,Zhou, Yingying,et al. Evolution of opsin genes reveals a functional role of vision in the echolocating little brown bat (myotis lucifugus)[J]. Biochemical systematics and ecology,2009,37(3):154-161. |
| APA | Zhao, Huabin,Xu, Dong,Zhou, Yingying,Flanders, Jon,&Zhang, Shuyi.(2009).Evolution of opsin genes reveals a functional role of vision in the echolocating little brown bat (myotis lucifugus).Biochemical systematics and ecology,37(3),154-161. |
| MLA | Zhao, Huabin,et al."Evolution of opsin genes reveals a functional role of vision in the echolocating little brown bat (myotis lucifugus)".Biochemical systematics and ecology 37.3(2009):154-161. |
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来源：中国科学院大学
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