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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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- 2020.1
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Background: The IGF system plays important roles in controlling growth, development, reproduction, and aging of organisms. Methods: To estimate maturation of the Pacific oyster Crassostrea gigas, we investigated the expression of insulinlike growth factor (IGF) system components and sex-specific genes. To determine the role of the IGF system in the growth and spawning period of female and male oysters, we examined mRNA expression levels of the C. gigas insulin receptor-related receptor (CIR), IGF binding protein complex acid labile subunit (IGFBP_ALS), and molluscan insulin-related peptide (MIP), as well as those of vitellogenin (Vg) and receptor-type guanylate cyclase (Gyc76C) in gonads of C. gigas collected between April and October, when sex can be determined visually in this species. Results: We found that MIP, IGFBP_ALS, and CIR mRNA expression levels were dependent on sex and month and were greater in males than in females. CIR and Vg mRNA expression levels were very similar among females, whereas IGF system components and Gyc76C were very similarly expressed among males. The highest expression values were observed in May, when oysters are mature; CIR and Vg mRNA expression levels were highest in females, and those of MIP, IGFBP_ALS, CIR, and Gyc76C were highest in males. Interestingly, we observed a 1:1 proportion of females to males during this period. Conclusion: Our results suggest that IGF system components, as well as Vg and Gyc76C, are associated with sexual maturation in C. gigas.
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참고문헌 (53)
참고문헌 신청
Ayoob JC / 2004 / The Drosophila receptor guanylyl cyclase Gyc76C is required for semaphoring-1a-plexin A-mediated axonal repulsion / J Neurosci 24:6639~6649
Baxter RC / 1994 / Insulin-like growth factor binding proteins in the human circulation : a review / Horm Res 42:140~144
Bayne BL / 1999 / Physiological components of growth differences between individual oysters(Crassostrea gigas)and a comparison with Saccostrea commercialis / Physiol Biochem Zool 72:705~713
Boag PR / 2001 / Molecular aspects of sexual development and reproduction in nematodes and schistosomes / Advan Parasitol 50:153~198
Boutet I / 2008 / Characterization of reproduction-specific genes in a marine bivalve mollusc : influence of maturation stage and sex on mRNA expression / Gene 407:130~138
Baxter RC / 1994 / Insulin-like growth factor binding proteins in the human circulation : a review / Horm Res 42:140~144
Bayne BL / 1999 / Physiological components of growth differences between individual oysters(Crassostrea gigas)and a comparison with Saccostrea commercialis / Physiol Biochem Zool 72:705~713
Boag PR / 2001 / Molecular aspects of sexual development and reproduction in nematodes and schistosomes / Advan Parasitol 50:153~198
Boutet I / 2008 / Characterization of reproduction-specific genes in a marine bivalve mollusc : influence of maturation stage and sex on mRNA expression / Gene 407:130~138
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