The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans
An olfactory receptor (OR) multigene family is responsible for the well-developed sense of smell possessed by terrestrial tetrapods. Mammalian OR genes had diverged greatly in the terrestrial environment after the fish–tetrapod split, indicating their importance to land habitation. In this study, we...
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ftpubmed:oai:pubmedcentral.nih.gov:2390674 2023-05-15T15:36:08+02:00 The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans Kishida, Takushi Kubota, Shin Shirayama, Yoshihisa Fukami, Hironobu 2007-05-29 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2390674 http://www.ncbi.nlm.nih.gov/pubmed/17535789 https://doi.org/10.1098/rsbl.2007.0191 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2390674 http://www.ncbi.nlm.nih.gov/pubmed/17535789 http://dx.doi.org/10.1098/rsbl.2007.0191 © 2007 The Royal Society Research Article Text 2007 ftpubmed https://doi.org/10.1098/rsbl.2007.0191 2013-09-01T22:34:45Z An olfactory receptor (OR) multigene family is responsible for the well-developed sense of smell possessed by terrestrial tetrapods. Mammalian OR genes had diverged greatly in the terrestrial environment after the fish–tetrapod split, indicating their importance to land habitation. In this study, we analysed OR genes of marine tetrapods (minke whale Balaenoptera acutorostrata, dwarf sperm whale Kogia sima, Dall's porpoise Phocoenoides dalli, Steller's sea lion Eumetopias jubatus and loggerhead sea turtle Caretta caretta) and revealed that the pseudogene proportions of OR gene repertoires in whales were significantly higher than those in their terrestrial relative cattle and also in sea lion and sea turtle. On the other hand, the pseudogene proportion of OR sequences in sea lion was not significantly higher compared with that in their terrestrial relative (dog). It indicates that secondary perfectly adapted marine vertebrates (cetaceans) have lost large amount of their OR genes, whereas secondary-semi-adapted marine vertebrates (sea lions and sea turtles) still have maintained their OR genes, reflecting the importance of terrestrial environment for these animals. Text Balaenoptera acutorostrata minke whale Sperm whale PubMed Central (PMC) Biology Letters 3 4 428 430 |
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Research Article Kishida, Takushi Kubota, Shin Shirayama, Yoshihisa Fukami, Hironobu The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans |
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Research Article |
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An olfactory receptor (OR) multigene family is responsible for the well-developed sense of smell possessed by terrestrial tetrapods. Mammalian OR genes had diverged greatly in the terrestrial environment after the fish–tetrapod split, indicating their importance to land habitation. In this study, we analysed OR genes of marine tetrapods (minke whale Balaenoptera acutorostrata, dwarf sperm whale Kogia sima, Dall's porpoise Phocoenoides dalli, Steller's sea lion Eumetopias jubatus and loggerhead sea turtle Caretta caretta) and revealed that the pseudogene proportions of OR gene repertoires in whales were significantly higher than those in their terrestrial relative cattle and also in sea lion and sea turtle. On the other hand, the pseudogene proportion of OR sequences in sea lion was not significantly higher compared with that in their terrestrial relative (dog). It indicates that secondary perfectly adapted marine vertebrates (cetaceans) have lost large amount of their OR genes, whereas secondary-semi-adapted marine vertebrates (sea lions and sea turtles) still have maintained their OR genes, reflecting the importance of terrestrial environment for these animals. |
format |
Text |
author |
Kishida, Takushi Kubota, Shin Shirayama, Yoshihisa Fukami, Hironobu |
author_facet |
Kishida, Takushi Kubota, Shin Shirayama, Yoshihisa Fukami, Hironobu |
author_sort |
Kishida, Takushi |
title |
The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans |
title_short |
The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans |
title_full |
The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans |
title_fullStr |
The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans |
title_full_unstemmed |
The olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans |
title_sort |
olfactory receptor gene repertoires in secondary-adapted marine vertebrates: evidence for reduction of the functional proportions in cetaceans |
publisher |
The Royal Society |
publishDate |
2007 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2390674 http://www.ncbi.nlm.nih.gov/pubmed/17535789 https://doi.org/10.1098/rsbl.2007.0191 |
genre |
Balaenoptera acutorostrata minke whale Sperm whale |
genre_facet |
Balaenoptera acutorostrata minke whale Sperm whale |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2390674 http://www.ncbi.nlm.nih.gov/pubmed/17535789 http://dx.doi.org/10.1098/rsbl.2007.0191 |
op_rights |
© 2007 The Royal Society |
op_doi |
https://doi.org/10.1098/rsbl.2007.0191 |
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Biology Letters |
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3 |
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4 |
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428 |
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430 |
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1766366467300786176 |