Deposition, removal and production site of the amorphous mating plug in the spider Philodromus cespitum

Die Naturwissenschaften
Lenka SentenskáGabriele Uhl

Abstract

In order to avoid sperm competition, males of many taxa apply physical barriers, so-called mating plugs, into female genitalia. Females may control which males deposit a plug through pre-copulatory mate choice or by influencing plug efficacy to avoid costs imposed by plugging. However, subsequent suitors might remove the plugs. We investigated behavioural and morphological aspects of plug deposition and removal in a promiscuous spider, Philodromus cespitum (Philodromidae). We performed mating trials to investigate factors affecting plugging. To identify the plug origin, we conducted a morphological analysis using 3D X-ray microtomography and histology of the male copulatory organ and the female genital tract. In P. cespitum, the plug material is produced in the male genital bulb and transferred to the female together with sperm. The copulation is brief and terminated by the female. After mating, plugging material was found in the genital atrium of all females, covering it to a varying degree (10-100%). The extent of coverage was associated with the duration of movements of male copulatory organ connected with sperm transfer (i.e. full haematodochal expansions) and with the number of taps a male delivered with his legs to the fe...Continue Reading

References

Mar 31, 2000·Biological Reviews of the Cambridge Philosophical Society·M D Jennions, M Petrie
Mar 29, 2001·Proceedings of the National Academy of Sciences of the United States of America·B BaerP Schmid-Hempel
Sep 11, 2002·Folia primatologica; international journal of primatology·Alan L Dixson, Matthew J Anderson
Aug 12, 2003·Proceedings. Biological Sciences·Trevor E PitcherLocke Rowe
Nov 1, 1960·Stain Technology·K C RICHARDSONE H FINKE
Nov 26, 2003·Journal of Evolutionary Biology·A J MooreP J Moore
Mar 3, 2004·Molecular Interventions·Jennifer R Fishman
Jun 6, 2009·Evolution; International Journal of Organic Evolution·Matjaz KuntnerJutta M Schneider
Jan 10, 2012·Evolution; International Journal of Organic Evolution·Lutz Fromhage
May 9, 2014·Biological Reviews of the Cambridge Philosophical Society·Matjaž KuntnerDaiqin Li
Apr 19, 2015·BMC Evolutionary Biology·Lenka SentenskáGabriele Uhl
Oct 1, 1996·Evolution; International Journal of Organic Evolution·Janne KotiahoSilja Parri

❮ Previous
Next ❯

Citations

May 10, 2020·Journal of Morphology·Mariela A Oviedo-DiegoAlfredo V Peretti
Oct 20, 2020·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Cristina TuniMarie E Herberstein

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray

Software Mentioned

iTEM
Amira
R
R Development Core Team
GEE
XMReconstructor

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.