Vitellogenesis in insects and other groups: a review

Memórias do Instituto Oswaldo Cruz

Denise Valle¹ 

[1] ,Instituto Oswaldo Cruz Departamento de Bioquímica e Biologia Molecular Rio de Janeiro,Brasil

关键词: hormonal control;    insects;    vitellin;    vitellogenesis;    vitellogenin;    vitellogenin genes;    vitellogenin synthesis;   

DOI  :  10.1590/S0074-02761993000100005

来源: SciELO

【 摘 要 】

The eggs from oviparous organisms contain large amounts of vitellus, or yolk, wich are utilized by the growing embryo. Vitellogenesis is the process of vitellus accumulation and involves massive heterosynthetic synthesis of the protein vitellogenin (Vg) and its deposition in the oocyte. This work summarizes data on Vg structure, synthesis, uptake by oocytes and its fate during embryogenesis. The hormonal control of vitellogenesis and its tissue, sex and temporal regulation are also discussed. Where it is available, data on structure and expression of Vg-coding genes are reviewed. Insect vitellogenesis is priorized although other oviparous animal groups outside insects are also treated.

【 授权许可】

CC BY   
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