Experimental evolution reveals trade-offs between mating and immunity
Immune system maintenance and upregulation is costly. Sexual selection intensity, which increases male investment into reproductive traits, is expected to create trade-offs with immune function. We assayed phenoloxidase (PO) and lytic activity of individuals from populations of the Indian meal moth,...
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| Format: | Online |
| Language: | English |
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The Royal Society
2013
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730636/ |
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pubmed-37306362013-08-23 Experimental evolution reveals trade-offs between mating and immunity McNamara, Kathryn B. Wedell, Nina Simmons, Leigh W. Evolutionary Biology Immune system maintenance and upregulation is costly. Sexual selection intensity, which increases male investment into reproductive traits, is expected to create trade-offs with immune function. We assayed phenoloxidase (PO) and lytic activity of individuals from populations of the Indian meal moth, Plodia interpunctella, which had been evolving under different intensities of sexual selection. We found significant divergence among populations, with males from female-biased populations having lower PO activity than males from balanced sex ratio or male-biased populations. There was no divergence in anti-bacterial lytic activity. Our data suggest that it is the increased male mating demands in female-biased populations that trades-off against immunity, and not the increased investment in sperm transfer per mating that characterizes male-biased populations. The Royal Society 2013-08-23 /pmc/articles/PMC3730636/ /pubmed/23720521 http://dx.doi.org/10.1098/rsbl.2013.0262 Text en http://creativecommons.org/licenses/by/3.0/ © 2013 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited. |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
McNamara, Kathryn B. Wedell, Nina Simmons, Leigh W. |
| spellingShingle |
McNamara, Kathryn B. Wedell, Nina Simmons, Leigh W. Experimental evolution reveals trade-offs between mating and immunity |
| author_facet |
McNamara, Kathryn B. Wedell, Nina Simmons, Leigh W. |
| author_sort |
McNamara, Kathryn B. |
| title |
Experimental evolution reveals trade-offs between mating and immunity |
| title_short |
Experimental evolution reveals trade-offs between mating and immunity |
| title_full |
Experimental evolution reveals trade-offs between mating and immunity |
| title_fullStr |
Experimental evolution reveals trade-offs between mating and immunity |
| title_full_unstemmed |
Experimental evolution reveals trade-offs between mating and immunity |
| title_sort |
experimental evolution reveals trade-offs between mating and immunity |
| description |
Immune system maintenance and upregulation is costly. Sexual selection intensity, which increases male investment into reproductive traits, is expected to create trade-offs with immune function. We assayed phenoloxidase (PO) and lytic activity of individuals from populations of the Indian meal moth, Plodia interpunctella, which had been evolving under different intensities of sexual selection. We found significant divergence among populations, with males from female-biased populations having lower PO activity than males from balanced sex ratio or male-biased populations. There was no divergence in anti-bacterial lytic activity. Our data suggest that it is the increased male mating demands in female-biased populations that trades-off against immunity, and not the increased investment in sperm transfer per mating that characterizes male-biased populations. |
| publisher |
The Royal Society |
| publishDate |
2013 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730636/ |
| _version_ |
1611999864523063296 |