Methoprene-tolerant and Krüppel homolog 1 are actors of juvenile hormone-signaling controlling the development of male sexual behavior in the moth Agrotis ipsilon

Diet impacts the reproductive system’s maturation in the male moth Agrotis ipsilon (Noctuidae, Lepidoptera)

“…Over the last decade, evidence has accumulated in male A. ipsilon demonstrating that sexual maturation is triggered by an elevation of circulating level of JH due to a raise of biosynthetic activity of corpora allata. This hormone conjointly promotes the display of sex pheromone-guided orientation flight by increasing the sensitivity of neurons responding to sex pheromone signal within the antennal lobes, and the growth and the secretory activity of accessory sex glands 16 (Aguilar et al, 2023;Bozzolan et al, 2015;Duportets et al, 2013;Gadenne & Anton, 2000;Gassias et al, 2021). Besides the energetic and metabolic aspects related to diet, it has been highlighted in several insect groups that food intake or deprivation of nutrients engendered fluctuations of JH biosynthesis (Bai et al, 2022;Perez-Hedo et al, 2014;Watanabe & Sasaki, 2021).…”

Identification of Candidate Genes Associated with Type-II Sex Pheromone Biosynthesis in the Tea Geometrid (Ectropis obliqua) (Lepidoptera: Geometridae)

“…Sex pheromones are usually secreted by female moths from the pheromone gland, which is typically located between the eighth and ninth abdominal segments [1]. To date, the sex pheromones or attractants of over 1600 moth species have been chemically identified [2]. Based on their chemical structures, moth sex pheromones are categorized into three primary types: Type I, which constitutes 75% of moth sex pheromones; Type II, representing 15%; and a miscellaneous type comprising the remaining 10% [3,4].…”