|Title:||The impact of thigmotaxis deprivation on the development of the German cockroach (Blattella germanica)||Authors:||Chen, Yun-Ru
|Keywords:||Entomology; Molecular mechanism of behavior||Issue Date:||19-Aug-2022||Publisher:||CELL PRESS||Journal Volume:||25||Journal Issue:||8||Source:||iScience||Abstract:||
Thigmotaxis is required in small animals. In this study, we examined how the shelter angle affects the development of German cockroaches, Blattella germanica. Groups and individual cockroaches showed a strong preference for shelters with an angle of ≤40° after 15 min or 24 h in shelter-selection trials. For cockroaches that developed in 90/180-degree shelters, survival and fecundity were low, and the nymphal stage lasted longer. Post-molting transcriptomes of second- and sixth-instar nymphs were analyzed at 12 h and 2 days post-molting. Upregulation was observed in genes related to ATP metabolism and cellular amide metabolism. Chitin-based cuticle development and postembryonic development-related genes were downregulated. The stress responses of cockroaches that developed in shelters with angles of 90° were similar to those of gregarious cockroaches experiencing social isolation. For German cockroaches, environmental tactile stimuli are crucial to development and homeostasis.
|Appears in Collections:||昆蟲學系|
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