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Imaizumi G, Ushio K, Nishihara H, Braasch I, Watanabe E, Kumagai S, Furuta T, Matsuzaki K, Romero MF, Kato A, Nagashima A. Functional Divergence in Solute Permeability between Ray-Finned Fish-Specific Paralogs of aqp10. Genome Biol Evol 2024; 16:evad221. [PMID: 38039384 PMCID: PMC10769510 DOI: 10.1093/gbe/evad221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/18/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023] Open
Abstract
Aquaporin (Aqp) 10 is a member of the aquaglyceroporin subfamily of water channels, and human Aqp10 is permeable to solutes such as glycerol, urea, and boric acid. Tetrapods have a single aqp10 gene, whereas ray-finned fishes have paralogs of this gene through tandem duplication, whole-genome duplication, and subsequent deletion. A previous study on Aqps in the Japanese pufferfish Takifugu rubripes showed that one pufferfish paralog, Aqp10.2b, was permeable to water and glycerol, but not to urea and boric acid. To understand the functional differences of Aqp10s between humans and pufferfish from an evolutionary perspective, we analyzed Aqp10s from an amphibian (Xenopus laevis) and a lobe-finned fish (Protopterus annectens) and Aqp10.1 and Aqp10.2 from several ray-finned fishes (Polypterus senegalus, Lepisosteus oculatus, Danio rerio, and Clupea pallasii). The expression of tetrapod and lobe-finned fish Aqp10s and Aqp10.1-derived Aqps in ray-finned fishes in Xenopus oocytes increased the membrane permeabilities to water, glycerol, urea, and boric acid. In contrast, Aqp10.2-derived Aqps in ray-finned fishes increased water and glycerol permeabilities, whereas those of urea and boric acid were much weaker than those of Aqp10.1-derived Aqps. These results indicate that water, glycerol, urea, and boric acid permeabilities are plesiomorphic activities of Aqp10s and that the ray-finned fish-specific Aqp10.2 paralogs have secondarily reduced or lost urea and boric acid permeability.
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Affiliation(s)
- Genki Imaizumi
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Kazutaka Ushio
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Hidenori Nishihara
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
- Department of Advanced Bioscience, Faculty of Agriculture, Kindai University, Nara, Japan
| | - Ingo Braasch
- Department of Integrative Biology and Ecology, Evolution, and Behavior Program, College of Natural Science, Michigan State University, East Lansing, Michigan, USA
| | - Erika Watanabe
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Shiori Kumagai
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Tadaomi Furuta
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Koji Matsuzaki
- Marine Science Museum, Fukushima Prefecture (Aquamarine Fukushima, AMF), Iwaki, Japan
| | - Michael F Romero
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine & Science, Rochester, Minnesota, USA
- Department of Nephrology and Hypertension, Mayo Clinic College of Medicine & Science, Rochester, Minnesota, USA
| | - Akira Kato
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Ayumi Nagashima
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
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