Adult nutrient shortage impairs female reproduction via the attenuated juvenile hormone signaling during vitellogenesis in Helicoverpa armigera (Lepidoptera: Noctuidae).

ABSTRACT: In insect reproduction, vitellogenesis is a prerequisite to oocyte maturation and critically depends on nutrient acquisition, supporting reproductive success. In Helicoverpa armigera (Hübner 1809), a hallmark of female reproduction is that vitellogenin (Vg) synthesis is initiated following adult eclosion, and juvenile hormone (JH) plays a principal role in this process. The adults commonly visit flowers to feed on nectar, which implies the possible linkage between adult nutrient and vitellogenesis. The preliminary experiment demonstrated that the supplemental nutrition with 10% honey during vitellogenesis significantly shortened the preoviposition period, extended the oviposition duration, and improved female fecundity. Ovary dissection showed that the ovarian development was somewhat dela

SUBMITTER: Zheng H 

PROVIDER: S-EPMC12571479 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature