Polyandry Depends on Postmating Time Interval in the Dengue Vector Aedes aegypti

The American Journal of Tropical Medicine and Hygiene
Ethan C Degner, Laura C Harrington

Abstract

Aedes aegypti is the primary vector of the dengue and chikungunya viruses. After mating, male seminal fluid molecules cause females to become unreceptive to a subsequent mating. This response is often assumed to be immediate and complete, but a growing body of evidence suggests that some females do mate more than once. It is unknown how quickly a female becomes unreceptive to a second mating. Furthermore, the degree to which she remains monandrous after laying several batches of eggs has not been rigorously tested. Therefore, we assessed the rates of polyandry in two sets of experiments using wild-type males and those with fluorescent sperm. The first experiment tested the likelihood of polyandry after postmating intervals of various durations. Most females became refractory to a second mating within 2 hours after mating, and rates of polyandry ranged from 24% immediately after mating to 3% at 20 hours after mating. The second experiment tested whether females were polyandrous after cycles of blood meals and oviposition. No re-insemination was found after one, three, or five such cycles. This study is the first to demonstrate that polyandrous behavior depends on the postmating interval. Our results will inform future applicatio...Continue Reading

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Citations

Sep 12, 2014·PLoS Neglected Tropical Diseases·Piraya BhoomiboonchooHenrik Salje
Jan 27, 2011·PLoS Neglected Tropical Diseases·Jared AldstadtThomas W Scott
Oct 26, 2016·Molecular Reproduction and Development·Ethan C Degner, Laura C Harrington
Feb 24, 2016·PLoS Neglected Tropical Diseases·Catalina Alfonso-ParraLaura C Harrington
Jan 23, 2019·Journal of Medical Entomology·María C CarrasquillaSarah Murr
Dec 16, 2018·Molecular & Cellular Proteomics : MCP·Ethan C DegnerSteve Dorus
Aug 3, 2018·Parasites & Vectors·Ashley G CallahanAry A Hoffmann
Sep 19, 2020·Evolution; International Journal of Organic Evolution·Kazuyoshi MinekawaTakashi Matsuo
Aug 21, 2020·BMC Biology·Igor FilipovićGordana Rašić
Feb 16, 2019·Scientific Reports·Andrew Aldersley, Lauren J Cator
Jan 11, 2021·Trends in Parasitology·Lauren J CatorLaura C Harrington
Mar 15, 2019·Molecular & Cellular Proteomics : MCP·Ethan C DegnerSteve Dorus
Sep 12, 2021·Nature Communications·Ming LiOmar S Akbari

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Methods Mentioned

BETA
transgenic

Software Mentioned

SPSS

Related Concepts

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