2023.07.31
Faculty of Science and Technology / Department of Materials and Life Sciences
Kawaguchi Mari Associate Professor
Reproductive strategies of fish species are variable. While oviparous fish fertilize externally and release eggs into the water, ovoviviparous fish fertilize internally and their eggs hatch inside the maternal body. We are currently focusing on seahorse Hippocampus abdominalis, belonging to family Syngnathidae. The male seahorse has a unique organ called “brood pouch” on its ventral side of the body into which the female deposits her eggs. Male seahorses protect the eggs until hatching and later “give birth.” The brood pouch is found in all the syngnathid fishes, and it evolved from simple form to complicated form found in seahorse. Our research aims to reveal the formation mechanism and evolutionary process of the brood pouch.
This research will provide molecular mechanism in understanding how new organs form during evolution.
This research is a basic study that not only aims to reveal the functions of the brood pouch in seahorse, but also the evolutionary processes of brood pouch formation by comparing between syngnathid fishes.
Microtome, Cryostat, Confocal microscopy, real-time qPCR, high-speed liquid chromatography, spectrophotometer
Microtome, Cryostat, Confocal microscopy, real-time qPCR, high-speed liquid chromatography, spectrophotometer
Mari Kawaguchi, Ryohei Okubo, Akari Harada, Kazuki Miyasaka, Kensuke Takada, Junya Hiroi, and Shigeki Yasumasu (2017) Morphology of brood pouch formation in the pot-bellied seahorse Hippocampus abdominalis. Zoological Letters, 3: 19.
DOI: 10.1186/s40851-017-0080-9
Mari Kawaguchi, Yuko Nakano, Ryouka Kawahara-Miki, Mayu Inokuchi, Makiko Yorifuji, Ryohei Okubo, Tatsuki Nagasawa, Junya Hiroi, Tomohiro Kono, and Toyoji Kaneko, 2016. An evolutionary insight into the hatching strategies of pipefish and seahorse embryos. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 326: 125-135.
DOI: 10.1002/jez.b.22670
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Effects of Surface Characteristics on Nucleate Boiling Heat Transfer
YILMAZ EMIR
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Friction Reduction in Reciprocating Sliding Contacts by Surface Micro-machining
YILMAZ EMIR
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Dynamics of relativistic matter
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Superconducting coil technology and its application
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Development of Au Nano-particles
Rikukawa Masahiro
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Development of Material Conversion Reaction on Metal complexes Having Multi-nuclear Structures
Misawa Tomoyo
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Development of in-liquid plasma equipment and flow wastewater treatment system or synthesis of green gel
Horikoshi Satoshi
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Environmental conservation through microwave-assisted photocatalytic method, and environmental cleansing device using a microwave discharge electrodeless lamp (MDEL)
Horikoshi Satoshi
2023.08.02
Low-cost and energy-saving hydrogen storage and transportation technology using a microwave organic hydride method
Horikoshi Satoshi
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