Extraordinary diversity of visual opsin genes in dragonflies
| العنوان: | Extraordinary diversity of visual opsin genes in dragonflies |
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| المؤلفون: | Takema Fukatsu, Michiyo Kinoshita, Kentaro Arikawa, Ryo Futahashi, Ryouka Kawahara-Miki, Shunsuke Yajima, Kazutoshi Yoshitake |
| المصدر: | Proceedings of the National Academy of Sciences. 112 |
| بيانات النشر: | Proceedings of the National Academy of Sciences, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Opsin, Light, Odonata, genetic structures, Molecular Sequence Data, Context (language use), Biology, Eye, Evolution, Molecular, Molecular evolution, Phylogenetics, Animals, Humans, Gene, Conserved Sequence, Phylogeny, Vision, Ocular, Multidisciplinary, Opsins, Gene Expression Profiling, fungi, Simple eye in invertebrates, Genetic Variation, Anatomy, Dragonfly, biology.organism_classification, eye diseases, Gene expression profiling, PNAS Plus, Gene Expression Regulation, Organ Specificity, Evolutionary biology, Larva, sense organs |
| الوصف: | Dragonflies are colorful and large-eyed animals strongly dependent on color vision. Here we report an extraordinary large number of opsin genes in dragonflies and their characteristic spatiotemporal expression patterns. Exhaustive transcriptomic and genomic surveys of three dragonflies of the family Libellulidae consistently identified 20 opsin genes, consisting of 4 nonvisual opsin genes and 16 visual opsin genes of 1 UV, 5 short-wavelength (SW), and 10 long-wavelength (LW) type. Comprehensive transcriptomic survey of the other dragonflies representing an additional 10 families also identified as many as 15-33 opsin genes. Molecular phylogenetic analysis revealed dynamic multiplications and losses of the opsin genes in the course of evolution. In contrast to many SW and LW genes expressed in adults, only one SW gene and several LW genes were expressed in larvae, reflecting less visual dependence and LW-skewed light conditions for their lifestyle under water. In this context, notably, the sand-burrowing or pit-dwelling species tended to lack SW gene expression in larvae. In adult visual organs: (i) many SW genes and a few LW genes were expressed in the dorsal region of compound eyes, presumably for processing SW-skewed light from the sky; (ii) a few SW genes and many LW genes were expressed in the ventral region of compound eyes, probably for perceiving terrestrial objects; and (iii) expression of a specific LW gene was associated with ocelli. Our findings suggest that the stage- and region-specific expressions of the diverse opsin genes underlie the behavior, ecology, and adaptation of dragonflies. |
| تدمد: | 1091-6490 0027-8424 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f191b44438975021afbae44fa9fd258Test https://doi.org/10.1073/pnas.1424670112Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....3f191b44438975021afbae44fa9fd258 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10916490 00278424 |
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