Noncoordinate synthesis of the vitellogenin proteins in tissues ofDrosophila grimshawi

摘要: In analyzing the in vitro pattern of protein synthesis by fat body and ovaries Hawaiian species Drosophila grimshawi, we have found that synthesize much more than female majority synthesized proteins are retained ovarian tissues. contrast, secrets most into culture medium. Vitellogenins major class released medium both The three vitellogenin (V1, V2, V3) is noncoordinate two Ovaries V2 protein, less V1 very little V3, whereas synthesizes with lesser quantities other two. follicle cells were identified as site D. confirming findings melanogaster. vitellogenins a developmentally regulated manner. predominant at onset vitellogenesis (S8-9); their production peaks together V3 few hours later (S10) then decreases to equal during early choriogenesis (S11). During active (S12), cease be synthesized, but continues. follicles not incorporated oocyte.