Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius

Abstract Sperm performance can vary in ecologically divergent populations, but it is often not clear whether the environment per se or genomic differences arising from divergent selection cause the difference. One powerful and easily manipulated environmental effect is diet. Populations of bedbugs (...

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Autores principales:	Jana Křemenová, Tomáš Bartonička, Ondřej Balvín, Christian Massino, Klaus Reinhardt, Markéta Sasínková, Alfons R. Weig, Oliver Otti
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0818248c1d2c46839a659138c481f187
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spelling	oai:doaj.org-article:0818248c1d2c46839a659138c481f1872021-12-02T16:31:02ZMale diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius10.1038/s41598-021-94622-62045-2322https://doaj.org/article/0818248c1d2c46839a659138c481f1872021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94622-6https://doaj.org/toc/2045-2322Abstract Sperm performance can vary in ecologically divergent populations, but it is often not clear whether the environment per se or genomic differences arising from divergent selection cause the difference. One powerful and easily manipulated environmental effect is diet. Populations of bedbugs (Cimex lectularius) naturally feed either on bat or human blood. These are diverging genetically into a bat-associated and a human-associated lineage. To measure how male diet affects sperm performance, we kept males of two HL and BL populations each on either their own or the foreign diet. Then we investigated male reproductive success in a single mating and sperm competition context. We found that male diet affected female fecundity and changed the outcome of sperm competition, at least in the human lineage. However, this influence of diet on sperm performance was moulded by an interaction. Bat blood generally had a beneficial effect on sperm competitiveness and seemed to be a better food source in both lineages. Few studies have examined the effects of male diet on sperm performance generally, and sperm competition specifically. Our results reinforce the importance to consider the environment in which sperm are produced. In the absence of gene flow, such differences may increase reproductive isolation. In the presence of gene flow, however, the generally better sperm performance after consuming bat blood suggests that the diet is likely to homogenise rather than isolate populations.Jana KřemenováTomáš BartoničkaOndřej BalvínChristian MassinoKlaus ReinhardtMarkéta SasínkováAlfons R. WeigOliver OttiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jana Křemenová Tomáš Bartonička Ondřej Balvín Christian Massino Klaus Reinhardt Markéta Sasínková Alfons R. Weig Oliver Otti Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius
description	Abstract Sperm performance can vary in ecologically divergent populations, but it is often not clear whether the environment per se or genomic differences arising from divergent selection cause the difference. One powerful and easily manipulated environmental effect is diet. Populations of bedbugs (Cimex lectularius) naturally feed either on bat or human blood. These are diverging genetically into a bat-associated and a human-associated lineage. To measure how male diet affects sperm performance, we kept males of two HL and BL populations each on either their own or the foreign diet. Then we investigated male reproductive success in a single mating and sperm competition context. We found that male diet affected female fecundity and changed the outcome of sperm competition, at least in the human lineage. However, this influence of diet on sperm performance was moulded by an interaction. Bat blood generally had a beneficial effect on sperm competitiveness and seemed to be a better food source in both lineages. Few studies have examined the effects of male diet on sperm performance generally, and sperm competition specifically. Our results reinforce the importance to consider the environment in which sperm are produced. In the absence of gene flow, such differences may increase reproductive isolation. In the presence of gene flow, however, the generally better sperm performance after consuming bat blood suggests that the diet is likely to homogenise rather than isolate populations.
format	article
author	Jana Křemenová Tomáš Bartonička Ondřej Balvín Christian Massino Klaus Reinhardt Markéta Sasínková Alfons R. Weig Oliver Otti
author_facet	Jana Křemenová Tomáš Bartonička Ondřej Balvín Christian Massino Klaus Reinhardt Markéta Sasínková Alfons R. Weig Oliver Otti
author_sort	Jana Křemenová
title	Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius
title_short	Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius
title_full	Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius
title_fullStr	Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius
title_full_unstemmed	Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius
title_sort	male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, cimex lectularius
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0818248c1d2c46839a659138c481f187
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Male diet affects female fitness and sperm competition in human- and bat-associated lineages of the common bedbug, Cimex lectularius

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