Sperm transfer through hyper-elongated beetle penises – morphology and theoretical approaches

Journal article


Yoko Matsumura, Jan Michels, Rajabi Jorshari, H., Tateo Shimozawa and Stanislav N. Gorb (2019). Sperm transfer through hyper-elongated beetle penises – morphology and theoretical approaches. Scientific Reports. 9, p. 10238. https://doi.org/10.1038/s41598-019-46211-x
AuthorsYoko Matsumura, Jan Michels, Rajabi Jorshari, H., Tateo Shimozawa and Stanislav N. Gorb
Abstract

Many insects possess a hyper-elongated intromittent organ with a diameter of only a few micrometers. Using morphological and theoretical approaches, we investigated the biomechanics of sperm transfer through such organs by calculating (1) how far and how fast sperm could fill in the penis by capillary action, (2) how much capillary pressure is generated in the penis, and (3) how much pressure is needed to pump sperm out of the penis. The results enabled us to propose the following hypotheses: (1) penile filling basically occurs by capillary action, and (2) sperm transport to females occurs by contracting the sperm pump muscles or by active propulsion of spermatozoa. Potential experimental approaches to test these hypotheses are discussed.

Year2019
JournalScientific Reports
Journal citation9, p. 10238
PublisherSpringer Nature
ISSN2045-2322
Digital Object Identifier (DOI)https://doi.org/10.1038/s41598-019-46211-x
Web address (URL)https://doi.org/10.1038/s41598-019-46211-x
Publication dates
Online05 Jul 2019
Publication process dates
Accepted13 Jun 2019
Deposited28 Jul 2022
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Open
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