关键词: 东乡伊蚊, 卵黄发生, 自殖, 血淋巴

Abstract: This article firstly reports the experimental results of vitellogenin(YG)synthesis by fat body cells(FBCs)and VG concentration in hemolymph at different times during the period of vitellogenesis in autogenous Aedes togoi. Comparing with the results of an unautogenous strain of the same species, it was found that VG synthesis of autogenous strain started quickly after emergence. The cytoplasm of FBCs was filled with VG granaules in early time post-emergence. The peak of VG synthesis was at 24th hr and declined at 36th hr.There was hardly any VG granule in FBCs at 60th hr. With VG granuals in FBCs decreasing, the density of yitelline (Vn) granuales in oocytes increased and so oocytes developed gradually and continuously to maturation. There was a marked resting stage during the period of vitellogenesis of anautogenous strain. The VG synthesis was initiated only if feeding blood meal, and its peak was at 24th hr. The developmental matters of the oocytes were similar to that of autogenous strain. The results also demonstrated that no other tissues synthesized VG except FBCs. There were a little VG levels in early time post-emergeuce in hemolymph of autogenous strain. The peak of VG concentration was at 36th hr, and then decreased. The peak of VG concentration in henolymph anautogenous strain was at 24th hr after blood meal.It is suggested by mentioned results that the processes of vitellogenesis in different physiological strain of the same species in Aedes togoi is similar, but the biological characteristics of vitellogenesis are different. There exists differences in initiating time and eapacity of VG synthesis by FBCs and VG concentration in hemolymph at different time.