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北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第69巻 第1号 >
Quantitative Changes of Major Yolk Protein in the Coelomic Fluid and Gonads of the Sea Urchin, Mesocentrotus nudus, during the Reproductive Cycle
Title: | Quantitative Changes of Major Yolk Protein in the Coelomic Fluid and Gonads of the Sea Urchin, Mesocentrotus nudus, during the Reproductive Cycle |
Authors: | Ura, Kazuhiro Browse this author →KAKEN DB | Suzuki, Natsuki Browse this author | Takei, Narumi Browse this author | Higuchi, Ichiro Browse this author | Yuhi, Tomoharu Browse this author | Nishimiya, Osamu Browse this author | Takagi, Yasuaki Browse this author →KAKEN DB |
Keywords: | Sea urchin | Mesocentrotus nudus | Major yolk protein | Coelomic fluid | Gonad | Reproductive cycle |
Issue Date: | 7-Aug-2019 |
Publisher: | 北海道大学大学院水産科学研究院 |
Journal Title: | 北海道大学水産科学研究彙報 |
Journal Title(alt): | Bulletin of Fisheries Sciences, Hokkaido University |
Volume: | 69 |
Issue: | 1 |
Start Page: | 29 |
End Page: | 36 |
Abstract: | Both female and male sea urchins accumulate the major yolk protein (MYP) in the nutritive phagocytes of immature gonads before gametogenesis. Additionally, the most abundant protein in the coelomic fluids of both sexes is MYP. In females, MYP in the coelomic fluid is taken up by the nutritive phagocytes and then transported into growing oocytes. In this study, quantitative changes of MYP in the coelomic fluid of both sexes were examined during the reproductive cycle of the wild sea urchin, Mesocentrotus nudus. In females but not males, positive correlation between MYP level and the gonadosomatic index was observed. These results indicate that MYP in the coelomic fluid is suitable as a biomarker of the onset of puberty and progression of maturity in female sea urchins. |
Type: | bulletin (article) |
URI: | http://hdl.handle.net/2115/75196 |
Appears in Collections: | 北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第69巻 第1号
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