Sex-peptide activates juvenile hormone biosynthesis in theDrosophila melanogaster corpus allatum

Moshitzky, Pnina; Fleischmann, Iréne; Chaimov, Nivi; Saudan, Philippe; Klauser, Stephan; Kubli, Eric; Applebaum, Shalom W.

doi:10.1002/(sici)1520-6327(1996)32:3/4<363::aid-arch9>3.0.co;2-t

Cited by 205 publications

(32 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Males also transfer Sex-peptide to the female during mating [71-73]. Sex-peptide increases JH levels in females [74], which stimulates egg development [75]. However, possible mating-induced changes in male JH levels have not been evaluated.…”

Section: Discussionmentioning

confidence: 99%

Mating alters gene expression patterns in Drosophila melanogaster male heads

Ellis

Carney

2010

BMC Genomics

View full text Add to dashboard Cite

BackgroundBehavior is a complex process resulting from the integration of genetic and environmental information. Drosophila melanogaster rely on multiple sensory modalities for reproductive success, and mating causes physiological changes in both sexes that affect reproductive output or behavior. Some of these effects are likely mediated by changes in gene expression. Courtship and mating alter female transcript profiles, but it is not known how mating affects male gene expression.ResultsWe used Drosophila genome arrays to identify changes in gene expression profiles that occur in mated male heads. Forty-seven genes differed between mated and control heads 2 hrs post mating. Many mating-responsive genes are highly expressed in non-neural head tissues, including an adipose tissue called the fat body. One fat body-enriched gene, female-specific independent of transformer (fit), is a downstream target of the somatic sex-determination hierarchy, a genetic pathway that regulates Drosophila reproductive behaviors as well as expression of some fat-expressed genes; three other mating-responsive loci are also downstream components of this pathway. Another mating-responsive gene expressed in fat, Juvenile hormone esterase (Jhe), is necessary for robust male courtship behavior and mating success.ConclusionsOur study demonstrates that mating causes changes in male head gene expression profiles and supports an increasing body of work implicating adipose signaling in behavior modulation. Since several mating-induced genes are sex-determination hierarchy target genes, additional mating-responsive loci may be downstream components of this pathway as well.

show abstract

Section: Discussionmentioning

confidence: 99%

Mating alters gene expression patterns in Drosophila melanogaster male heads

Ellis

Carney

2010

BMC Genomics

View full text Add to dashboard Cite

show abstract

“…In this context it can be noted that female discrimination against older males has been reported in several other species, and it may be beneficial for increased fertility to mate with younger males (Ottiger et al, 2000; Saudan et al, 2002). Actually a reduction in fecundity after reproductive diapause has been observed in different insect groups, including Hymenoptera (Soller et al, 1997), Lepidoptera (Kim et al, 2008), and Coleoptera (Moshitzky et al, 1996) and may be seen as a trade-off for postponed reproduction.…”

Section: Discussionmentioning

confidence: 99%

“…Gradual depletion of metabolic stores therefore occurs during diapause (Hahn and Denlinger, 2007). In addition, post-diapause recovery, including finalizing oogenesis and spermatogenesis, also requires using metabolic stores (Moshitzky et al, 1996; Soller et al, 1997; Jones et al, 2016; Liu et al, 2016). During dormancy males of D. melanogaster seem to use stored nutrients faster than females.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Reproductive Dormancy in Male Drosophila melanogaster

et al. 2016

View full text Add to dashboard Cite

Insects are known to respond to seasonal and adverse environmental changes by entering dormancy, also known as diapause. In some insect species, including Drosophila melanogaster, dormancy occurs in the adult organism and postpones reproduction. This adult dormancy has been studied in female flies where it is characterized by arrested development of ovaries, altered nutrient stores, lowered metabolism, increased stress and immune resistance and drastically extended lifespan. Male dormancy, however, has not been investigated in D. melanogaster, and its physiology is poorly known in most insects. Here we show that unmated 3–6 h old male flies placed at low temperature (11°C) and short photoperiod (10 Light:14 Dark) enter a state of dormancy with arrested spermatogenesis and development of testes and male accessory glands. Over 3 weeks of diapause we see a dynamic increase in stored carbohydrates and an initial increase and then a decrease in lipids. We also note an up-regulated expression of genes involved in metabolism, stress responses and innate immunity. Interestingly, we found that male flies that entered reproductive dormancy do not attempt to mate females kept under non-diapause conditions (25°C, 12L:12D), and conversely non-diapausing males do not mate females in dormancy. In summary, our study shows that male D. melanogaster can enter reproductive dormancy. However, our data suggest that dormant male flies deplete stored nutrients faster than females, studied earlier, and that males take longer to recover reproductive capacity after reintroduction to non-diapause conditions.

show abstract

“…One day after mating JH titers were significantly reduced (by ∼20%) in 14–15 days old C. biguttulus females (Figure 3C) going along with reduction of responsiveness to male calling songs described above (Figure 3D). Effects of mating on JH synthesis were also reported from moths, flies, and cockroaches but in contrast to grasshopper females, JH production increased in these insects (Gadot et al, 1991; Moshitzky et al, 1996; Schal et al, 1997; Cusson et al, 1999). …”

Section: “Long-term” Regulation Of Grasshopper Sound Production By Jumentioning

confidence: 86%

Reproduction-Related Sound Production of Grasshoppers Regulated by Internal State and Actual Sensory Environment

Heinrich¹,

Kunst²,

Wirmer³

2012

Front. Neurosci.

View full text Add to dashboard Cite

The interplay of neural and hormonal mechanisms activated by entero- and extero-receptors biases the selection of actions by decision making neuronal circuits. The reproductive behavior of acoustically communicating grasshoppers, which is regulated by short-term neural and longer-term hormonal mechanisms, has frequently been used to study the cellular and physiological processes that select particular actions from the species-specific repertoire of behaviors. Various grasshoppers communicate with species- and situation-specific songs in order to attract and court mating partners, to signal reproductive readiness, or to fend off competitors. Selection and coordination of type, intensity, and timing of sound signals is mediated by the central complex, a highly structured brain neuropil known to integrate multimodal pre-processed sensory information by a large number of chemical messengers. In addition, reproductive activity including sound production critically depends on maturation, previous mating experience, and oviposition cycles. In this regard, juvenile hormone released from the corpora allata has been identified as a decisive hormonal signal necessary to establish reproductive motivation in grasshopper females. Both regulatory systems, the central complex mediating short-term regulation and the corpora allata mediating longer-term regulation of reproduction-related sound production mutually influence each other’s activity in order to generate a coherent state of excitation that promotes or suppresses reproductive behavior in respective appropriate or inappropriate situations. This review summarizes our current knowledge about extrinsic and intrinsic factors that influence grasshopper reproductive motivation, their representation in the nervous system and their integrative processing that mediates the initiation or suppression of reproductive behaviors.

show abstract

Sex-peptide activates juvenile hormone biosynthesis in theDrosophila melanogaster corpus allatum

Cited by 205 publications

References 27 publications

Mating alters gene expression patterns in Drosophila melanogaster male heads

Mating alters gene expression patterns in Drosophila melanogaster male heads

Characterization of Reproductive Dormancy in Male Drosophila melanogaster

Reproduction-Related Sound Production of Grasshoppers Regulated by Internal State and Actual Sensory Environment

Contact Info

Product

Resources

About