Diapause induction
WebEffects of photoperiod and temperature on induction and termination of reproductive diapause of Thrips setosus Moulton (Thysanoptera: Thripidae)主要由Nakao S编写，在1998年被《日本应用动物昆虫学会志》收录，原文总共2页。 Webfor diapause induction. The critical photoperiod giving 50% diapause was between 15 and 16 h for the temperate strain and between 12 and 13 h for the subtropical strain, and thus there was about a 3-h difference between the two strains. The nymphal diapausing stadium, that took more than 30 days for completion (Tanaka 1991), was also
Diapause induction
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WebJan 1, 2024 · Abstract. The onion maggot, Delia antiqua, is a worldwide subterranean pest and can enter diapause during the summer and winter seasons.The molecular regulation of the ontogenesis transition remains largely unknown. Here we used high-throughput RNA sequencing to identify candidate genes and processes linked to summer diapause (SD) … WebRESULTS Like in other insects, the absence of JH triggers the induction and maintenance of reproductive diapause in H. axyridis, indicated by JH measurements and the knockdown of an intracellular JH receptor Methoprene-tolerant (Met). Methoprene, a JH analog, significantly reversed diapause into reproduction via Met.
WebJan 30, 2015 · To investigate the molecular mechanisms underlying diapause induction, we used custom whole transcriptome microarrays to identify differences in gene expression following exposure to nondiapause (long days, 25 °C) and diapause-inducing (short days, 18 °C) environmental conditions. Using a two-way ANOVA, we identified 1130 genes that … WebApr 13, 2024 · Diapause induction is most strongly affected by photoperiod in a certain developmental stage following the second larval ecdysis 27. Thus, to our …
WebJun 3, 2003 · Nezara viridula has an adult diapause controlled by a long-day photoperiodic response. At 20 °C and 25 °C in both sexes, photoperiodic responses were similar and had thresholds close to 12.5 h, thus suggesting that the response is thermostable within this range of temperatures and day-length plays a leading role in diapause induction. WebHowever, diapause in H. halys is facultative and its induction and termination are affected by temperature and photoperiod, and that is what gives the ability to H. halys to easily adapt to regions with shorter maximum day lengths . Facultative diapause is mediated by external factors and does not necessarily occur in each generation .
WebFeb 3, 2012 · Diapause is a developmental arrest that allows an organism to survive unfavorable environmental conditions and is induced by environmental signals at a certain sensitive developmental stage. In Helicoverpa armigera, the larval brain receives the environmental signals for diapause induction and then regulates diapause entry at the …
WebOur previous study revealed that embryonic diapause is induced by the diapause hormone (DH) signaling pathway, which consists of a highly sensitive and specific interaction between the DH and DH receptor … jeff architectWebJan 25, 2024 · Some insect strains within a population may also be more sensitive than others to signals of diapause induction or termination (Roff & Bradford, 2000). For example, some individuals of Diabrotica barberi Smith & Lawrence, an important maize pest, express a prolonged diapause as an adaptation to the variability of crop cycles. oxbo lisbon iowaWebrelated to the diapause induction (Togashi 2024). To evaluate the eect of density-related induction of diapause on population uctuation, one, two or four newly hatched larvae of M. a. alternatus were inoculated on P. thunbergii bolts and the eects of initial larval density and crowding on the diapause induction and other life-history jeff argentinaWebBoth direct thermal and maternal photoperiodic effects on diapause induction have been thoroughly investigated in many insect species, while maternal thermal effects have been infrequently studied. jeff arlington christmanWebJan 25, 2024 · diapause induction and initiation are separated by a . period of direct development, during which the . individual is covertly programmed for later expression . of diapause. Behavioral and ... oxbo lightsWebDiapause may also draw profound consequences for populations and biocenosis diversity. It may slow down the rate of evolutionary change of a genome pool within a population and process of extinction of inferior genotypes from a local environment. ... This way of induction of resting form production is however limited by some constrains and thus ... jeff arlingtonWebFeb 15, 2024 · The induction of diapause represents a dramatic change in the normal progression of age. Hormones such as juvenile hormone, 20-hydroxyecdysone, and prothoracicotropic hormone are well-known to modulate this plasticity. The induction of diapause—and by extension, the cessation of normal aging—is coordinated by … oxbo high back chair