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Gene Expression of GqBursicon in Gynaephora qinghaiensis (Lepidoptera: Lymantriidae) and Its Impact on Wing Expansion
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Gene Expression of GqBursicon in Gynaephora qinghaiensis (Lepidoptera: Lymantriidae) and Its Impact on Wing Expansion
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Gene Expression of GqBursicon in Gynaephora qinghaiensis (Lepidoptera: Lymantriidae) and Its Impact on Wing Expansion
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Journal Article
Gene Expression of GqBursicon in Gynaephora qinghaiensis (Lepidoptera: Lymantriidae) and Its Impact on Wing Expansion
2026
Overview
The tanning hormone (Bursicon) is a heterodimer secreted by the insect nervous system, playing a crucial role in the process of cuticle darkening and hardening and wing expansion in insects. In this study, we knocked out the
gene using RNAi, thereby impairing the flight ability of adult males by affecting wing development, laying the groundwork for further control of the damage they cause to alpine meadows. The
gene was successfully characterized and expressed at all developmental stages of
, with higher expression in 5th instar larvae and wing primordia. In order to investigate the potential role of the
gene in wing development, we used RNAi technology to inhibit the expression of the
gene by in vivo injection of
into male adults of
, with the aim of affecting their flight ability. The silencing efficiency of the
gene was 86.12%, 97.27%, 65.61%, and 30.51% in each tissue (thorax, abdomen, wing, and wing base) 12 h after
injection. In addition, 12 h after injection of exogenous hormones (20E, JH, and Insulin) and a PKA inhibitor (H-89), we found that the
gene was affected by 20E, H-89, JH, and Insulin, and its overexpression and gene silencing were observed in the thorax, abdomen, wings, and wing primordia of male adults of
. These results indicate that the
gene plays a crucial role in the wing development of male adults of
. Furthermore, a decrease in
gene expression further affects the extension and expansion of the wings, thereby impacting the insect's flight ability.
Publisher
MDPI AG,Multidisciplinary Digital Publishing Institute (MDPI)
Subject
