Estrogen-induced yolk precursors in European sea bass, Dicentrarchus labrax: Status and perspectives on multiplicity and functioning of vitellogenins
2015
Yilmaz, Ozlem | Prat, Francisco | Ibáñez, Antonio José | Amano, Haruna | Koksoy, S. | Sullivan, Craig V. | Akdeniz University | North Carolina State University | North Carolina Agricultural Foundation
The estrogen-inducible egg yolk precursor, vitellogenin, of the European sea bass (Dicentrarchus labrax) has received considerable scientific attention by virtue of its central importance in determination of oocyte growth and egg quality in this important aquaculture species. However, the multiplicity of vitellogenins in the sea bass has only recently been examined. Recent cloning and homology analyses have revealed that the sea bass possesses the three forms of vitellogenin, VtgAa, VtgAb and VtgC, reported to occur in some other highly evolved teleosts. Progress has been made in assessing the relative abundance and special structural features of the three Vtgs and their likely roles in oocyte maturation and embryonic nutrition. This report discusses these findings in the context of our prior knowledge of vitellogenesis in this species and of the latest advances in our understanding of the evolution and function of multiple Vtgs in acanthomorph fishes
Show more [+] Less [-]This research was supported by an Akdeniz University Scientific Research Coordinating Unit Ph.D. research grant (2009.03.0121.008) and a Fulbright Doctoral Research fellowship granted to O.Y., and by awards from the North Carolina Sea Grant Program (award number R/12-SSS-3), the North Carolina Agricultural Foundation, Inc., and Carolina AquaGyn to CVS.
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