Retention and losses of ultraviolet-sensitive visual pigments in bats.
Retention and losses of ultraviolet-sensitive visual pigments in bats.
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蝙蝠紫外线敏感视觉色素的保留和损失
DOI：
10.1038/s41598-018-29646-6
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发表时间：
2018-08-09
影响因子：
4.6
通讯作者：
Liu Y
中科院分区：
文献类型：
--
作者：
Li L;Chi H;Liu H;Xia Y;Irwin DM;Zhang S;Liu Y
在与蜥脚类动物共同祖先的早期哺乳动物中，紫外线敏感视觉色素及其相应的紫外线视觉能力得以保留。随后，在哺乳动物多样化的过程中，由短波敏1 （SWS1）视蛋白基因编码的紫外线敏感色素在多个谱系中被转化为对紫色敏感或失去功能。然而，许多哺乳动物物种，包括大多数蝙蝠，都被建议保留一种对紫外线敏感的色素。值得注意的是，一些穴居果蝠和高占空比回声定位蝙蝠已经失去了它们的sws1基因，这可能是由于它们的栖息生态以及视觉和回声定位之间的感官平衡。在这里，我们对生态多样化蝙蝠的sws1基因进行了测序，发现该基因在普通吸血蝙蝠（Desmodus rotundus）和白翅吸血蝙蝠（Diaemus youngi）中也没有功能。除了具有假基因的物种外，我们的进化和功能研究表明，蝙蝠的SWS1色素自其共同祖先以来对紫外线敏感并且保存良好，这表明在主要生态类型中起重要作用。考虑到这些蝙蝠中SWS1色素的受限功能，为什么其他物种，如吸血蝙蝠，失去了这种基因就更有趣了，需要进一步的研究。
Ultraviolet (UV)-sensitive visual pigment and its corresponding ability for UV vision was retained in early mammals from their common ancestry with sauropsids. Subsequently, UV-sensitive pigments, encoded by the short wavelength-sensitive 1 (SWS1) opsin gene, were converted to violet sensitivity or have lost function in multiple lineages during the diversification of mammals. However, many mammalian species, including most bats, are suggested to retain a UV-sensitive pigment. Notably, some cave-dwelling fruit bats and high duty cycle echolocating bats have lost theirSWS1genes, which are proposed to be due to their roosting ecology and as a sensory trade-off between vision and echolocation, respectively. Here, we sequencedSWS1genes from ecologically diverse bats and found that this gene is also non-functional in both common vampire bat (Desmodus rotundus) and white-winged vampire bat (Diaemus youngi). Apart from species with pesudogenes, our evolutionary and functional studies demonstrate that the SWS1 pigment of bats are UV-sensitive and well-conserved since their common ancestor, suggesting an important role across major ecological types. Given the constrained function of SWS1 pigments in these bats, why some other species, such as vampire bats, have lost this gene is even more interesting and needs further investigation.
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影响因子：
3.9
作者：
Bielawski, JP;Yang, ZH
通讯作者：
Yang, ZH
影响因子：
2.9
作者：
Fasick, JI;Applebury, ML;Oprian, DD
通讯作者：
Oprian, DD
DOI：
10.1098/rspb.2015.1817
发表时间：
2015-11-22
影响因子：
4.7
作者：
Emerling, Christopher A.;Huynh, Hieu T.;Springer, Mark S.
通讯作者：
Springer, Mark S.
DOI：
10.1007/s00359-014-0951-x
发表时间：
2014-12-01
影响因子：
2.1
作者：
Melin, Amanda D.;Danosi, Christina F.;Dominy, Nathaniel J.
通讯作者：
Dominy, Nathaniel J.
影响因子：
1.7
作者：
Mueller, Brigitte;Goodman, Steven M.;Peichl, Leo
通讯作者：
Peichl, Leo