Photoperiodic diapause in Drosophila melanogaster involves a block to the juvenile hormone regulation of ovarian maturation

Saunders, D. S.; Richard, David; Applebaum, Shalom W.; McDonough, Michael A.; Gilbert, Lawrence I.

doi:10.1016/0016-6480(90)90102-r

Cited by 142 publications

(102 citation statements)

References 26 publications

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“…Hexamerins were recently implicated in regulation of caste differentiation in termites, where binding of juvenile hormone to the hexameric molecule results in physiological silencing of hormone action (44). Diapause is characterized by low juvenile hormone levels (45), and application of a juvenile hormone analog can trigger P. metricus gynes to initiate ovarian development (46). Hexamerin 1 protein in Polistes offspring, therefore, might be directly responsible for the phenotype bias of adult females: low levels in workers would permit juvenile hormone action and expression of reproductive behaviors shortly after adult emergence.…”

Section: Resultsmentioning

confidence: 99%

A diapause pathway underlies the gyne phenotype inPolisteswasps, revealing an evolutionary route to caste-containing insect societies

Hunt

Kensinger

Kossuth

et al. 2007

Proc. Natl. Acad. Sci. U.S.A.

143

125

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Colonies of social wasps, ants, and bees are characterized by the production of two phenotypes of female offspring, workers that remain at their natal nest and nonworkers that are potential colony reproductives of the next generation. The phenotype difference includes morphology and is fixed during larval development in ants, honey bees, and some social wasps, all of which represent an advanced state of sociality. Paper wasps (Polistes) lack morphological castes and are thought to more closely resemble an ancestral state of sociality wherein the phenotype difference between workers and nonworkers is established only during adult life. We address an alternative hypothesis: a bias toward the potential reproductive (gyne) phenotype among Polistes female offspring occurs during larval development and is based on a facultatively expressed ancestral life history trait: diapause. We show that two signatures of diapause (extended maturation time and enhanced synthesis and sequestration of a hexameric storage protein) characterize the development of gyne offspring in Polistes metricus. Hexameric storage proteins are implicated in silencing juvenile hormone signaling, which is a prerequisite for diapause. Diverging hexamerin protein dynamics driven by changes in larval provisioning levels thereby provide one possible mechanism that can cause an adaptive shift in phenotype bias during the Polistes colony cycle. This ontogenetic basis for alternative female phenotypes in Polistes challenges the view that workers and gynes represent behavior options equally available to every female offspring, and it exemplifies how social insect castes can evolve from casteless lineages.caste development ͉ hexameric storage proteins ͉ juvenile hormone ͉ life-history pleiotropy ͉ social behavior S ocial insects often show pronounced differences in behavior, physiology, and morphology between castes of workers (functionally sterile helpers) and reproductives (1).

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Section: Resultsmentioning

confidence: 99%

A diapause pathway underlies the gyne phenotype inPolisteswasps, revealing an evolutionary route to caste-containing insect societies

Hunt

Kensinger

Kossuth

et al. 2007

Proc. Natl. Acad. Sci. U.S.A.

143

125

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“…Unlike the fully reproductive state, levels of JH and Ecd decrease during diapause of adult female D. melanogaster, followed by inhibition of egg chamber development and fat body hypertrophy [6,[70][71][72]. During the reproductive phase of the fruit-fly, JH controls the early synthesis of yolk proteins (YPs) by the fat bodies and the ovarian follicle cells, and YPs are taken up by the developing egg chambers.…”

Section: Larval and Adult Diapause Are Regulated By Jh And Ecdmentioning

confidence: 99%

The hormonal and circadian basis for insect photoperiodic timing

2011

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Edited by Martha Merrow and Michael BrunnerKeywords: Insects Photoperiodism Diapause Endocrine axis Circadian clock Clock genes a b s t r a c t Daylength perception in temperate zones is a critical feature of insect life histories, and leads to developmental changes for resisting unfavourable seasons. The role of the neuroendocrine axis in the photoperiodic response of insects is discussed in relation to the key organs and molecules that are involved. We also discuss the controversial issue of the possible involvement of the circadian clock in photoperiodicity. Drosophila melanogaster has a shallow photoperiodic response that leads to reproductive arrest in adults, yet the unrivalled molecular genetic toolkit available for this model insect should allow the systematic molecular and neurobiological dissection of this complex phenotype.

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“…However, it is not known whether ovarian diapause in D. metanogaster is affected by the Yp genes. Juvenile hormone is thought to regulate vitellogenesis (Bownes, 1980(Bownes, , 1989, and ovarian diapause (Saunders et at., 1990). Genes regulating diapause and cold hardiness have not yet been localized in any Drosophila species (Denlinger, 1991 Prior to the initiation of diapause, flies were maintained at 20°C, under a 1 2L: 1 2D cycle, with lights on at 0800 h. The sensitive stage for the induction of diapause in D. melanogaster is before eclosion and up to 10 hours after eclosion (Saunders et at., 1989).…”

mentioning

confidence: 99%

Diapause in Drosophila melanogaster females: a genetic analysis

Williams

Sokolowski

1993

Heredity

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Female Drosophila melanogaster exhibit ovarian diapause at low temperatures and short day lengths. We found that D. melanogaster isofemale lines from Windsor (Ontario, Canada) had a significantly higher percentage of females in diapause than did those from Cartersville (Georgia, U.S.A.). To investigate the heredity of this trait, we performed a 16-reciprocal cross analysis using two extreme isofemale lines called W and C. We found that diapause in D. melanogaster is inherited as a simple autosomal recessive trait with the C response (less flies in diapause) completely dominant to the W one. Maternal and cytoplasmic factors did not affect differences in diapause in these lines. The result of our genetic analysis of diapause in D. melanogaster opens many avenues for the genetic dissection of this ecologically relevant trait.

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Photoperiodic diapause in Drosophila melanogaster involves a block to the juvenile hormone regulation of ovarian maturation

Cited by 142 publications

References 26 publications

A diapause pathway underlies the gyne phenotype inPolisteswasps, revealing an evolutionary route to caste-containing insect societies

A diapause pathway underlies the gyne phenotype inPolisteswasps, revealing an evolutionary route to caste-containing insect societies

The hormonal and circadian basis for insect photoperiodic timing

Diapause in Drosophila melanogaster females: a genetic analysis

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