The rôle of the spermathecal gland of the boll weevil, Anthonomus grandis

Villavaso, Eric J.

doi:10.1016/0022-1910(75)90208-5

Cited by 33 publications

(17 citation statements)

References 15 publications

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“…The first prediction is met because the spermathecae of all Drosophila species are at least partially surrounded by epithelia which, in D. melanogaster, have been shown to secrete large amounts of fluid into the lumen of the spermathecal capsule as sperm storage begins (Filosi and Perotti 1975; for weevils also see Villavaso 1975). These secretions may be critical for maintaining sperm viability beyond two to four days postmating, as this is the period of shortened fertility for females without spermathecae (Anderson 1945;Bouletreau-Merle 1977).…”

Section: Evolution Of Multiple Kinds Of Sperm-storage Organs In Drosomentioning

confidence: 98%

Evolution of Multiple Kinds of Female Sperm-Storage Organs in Drosophila

Pitnick¹,

Markow²,

Spicer³

1999

Evolution

246

351

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Section: Evolution Of Multiple Kinds Of Sperm-storage Organs In Drosomentioning

confidence: 98%

Evolution of Multiple Kinds of Female Sperm-Storage Organs in Drosophila

Pitnick¹,

Markow²,

Spicer³

1999

Evolution

246

351

View full text Add to dashboard Cite

show abstract

“…40) as well as several insect species. For example, in the beetle, Drusilla canaliculata, sperm migrate into the spermathecae (41), whereas the spermathecal gland in the boll weevil, Anthonomus grandis, is required for sperm activation, storage, clearance, and fertility (42,43) In D. melanogaster, sperm swim backward upon entering the female reproductive tract, and genetic ablation of the spermatheca secretory cells (SSCs) before mating leads to sperm storage defects: sperm fail to migrate into spermathcae and become inactive within the seminal receptacle (44)(45)(46). Moreover, SSC-ablated females display reduced fertility over time and ovovivipary (47).…”

Section: Significancementioning

confidence: 99%

Odorant receptor-mediated sperm activation in disease vector mosquitoes

Pitts

Liu

Zhou

et al. 2014

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

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Insects, such as the malaria vector mosquito, Anopheles gambiae, depend upon chemoreceptors to respond to volatiles emitted from a range of environmental sources, most notably blood meal hosts and oviposition sites. A subset of peripheral signaling pathways involved in these insect chemosensory-dependent behaviors requires the activity of heteromeric odorant receptor (OR) ion channel complexes and ligands for numerous A. gambiae ORs (AgOrs) have been identified. Although AgOrs are expressed in nonhead appendages, studies characterizing potential AgOr function in nonolfactory tissues have not been conducted. In the present study, we explore the possibility that AgOrs mediate responses of spermatozoa to endogenous signaling molecules in A. gambiae. In addition to finding AgOr transcript expression in testes, we show that the OR coreceptor, AgOrco, is localized to the flagella of A. gambiae spermatozoa where Orco-specific agonists, antagonists, and other odorant ligands robustly activate flagella beating in an Orco-dependent process. We also demonstrate Orco expression and Orco-mediated activation of spermatozoa in the yellow fever mosquito, Aedes aegypti. Moreover, we find Orco localization in testes across distinct insect taxa and posit that OR-mediated responses in spermatozoa may represent a general characteristic of insect reproduction and an example of convergent evolution.transcriptomics | cell signaling | gamete | chemical ecology | Culicidae

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“…The spermathecal gland secretion of insects is involved in spermatozoa activation, spermatozoa transfer to the spermatheca, and maintenance of spermatozoa (Davey & Webster 1967;Bhatnager & Musgrave 1971;Villavaso 1975;Grodner & Steffens 1978). In L .…”

Section: Reproductive Structure and Functionmentioning

confidence: 99%

Functional anatomy of the reproductive system ofListronotus bonariensis(Kuschel)

Barker

1989

New Zealand Entomologist

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The reproductive anatomy and development of adult Listronotw bonariensis is described, illustrated and discussed in relation to other Coleoptera. The ovaries of the female are teletrophic and are characterised, during the vitellogenic stages, by lack of nutritive cords and interfollicular tissue. Oocyte resorption is indicated by crystalline inclusions in the pedicels. Mature eggs are stored in the calyx, a structure contiguous with the median oviduct and characterised by a spinose intima. Distinctive features of the male reproductive system are the paired seminal vesicles, accessory glands and prostate glands. Sperm stored in the seminal vesicles is mixed with secretions of the accessory and prostate glands before transfer to the female in the form of a spermatophore during mating. Weevils mate repeatedly. The spermatophore is dissolved in the bursa copulatrix and the sperm are stored in the spermatheca.

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The rôle of the spermathecal gland of the boll weevil, Anthonomus grandis

Cited by 33 publications

References 15 publications

Evolution of Multiple Kinds of Female Sperm-Storage Organs in Drosophila

Evolution of Multiple Kinds of Female Sperm-Storage Organs in Drosophila

Odorant receptor-mediated sperm activation in disease vector mosquitoes

Functional anatomy of the reproductive system ofListronotus bonariensis(Kuschel)

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