Atlantic salmon eggs favour sperm in competition that have similar major histocompatibility alleles
Polyandry and post-copulatory sexual selection provide opportunities for the evolution of female differential sperm selection. Here, we examined the influence of variation in major histocompatibility (MH) class I allelic composition upon sperm competition dynamics in Atlantic salmon. We ran in vitro...
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| Veröffentlicht in: | Proceedings of the Royal Society. B, Biological sciences Biological sciences, 2009-02, Vol.276 (1656), p.559-566 |
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| container_title | Proceedings of the Royal Society. B, Biological sciences |
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| creator | Yeates, Sarah E Einum, Sigurd Fleming, Ian A Megens, Hendrik-Jan Stet, René J.M Hindar, Kjetil Holt, William V Van Look, Katrien J.W Gage, Matthew J.G |
| description | Polyandry and post-copulatory sexual selection provide opportunities for the evolution of female differential sperm selection. Here, we examined the influence of variation in major histocompatibility (MH) class I allelic composition upon sperm competition dynamics in Atlantic salmon. We ran in vitro fertilization competitions that mimicked the gametic microenvironment, and replicated a paired-male experimental design that allowed us to compare differences in sperm competition success among males when their sperm compete for eggs from females that were genetically either similar or dissimilar at the MH class I locus. Concurrently, we measured variation in spermatozoal traits that are known to influence relative fertilization success under these conditions. Contrary to the findings demonstrating mechanisms that promote MH complex heterozygosity, our results showed that males won significantly greater relative fertilization success when competing for eggs from genetically similar females at the MH class I. This result also showed covariation with the known influences of sperm velocity on relative fertilization success. We discuss these unexpected findings in relation to sperm-egg recognition and hybridization avoidance mechanisms based upon immunogenetic variation. |
| doi_str_mv | 10.1098/rspb.2008.1257 |
| format | Article |
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Here, we examined the influence of variation in major histocompatibility (MH) class I allelic composition upon sperm competition dynamics in Atlantic salmon. We ran in vitro fertilization competitions that mimicked the gametic microenvironment, and replicated a paired-male experimental design that allowed us to compare differences in sperm competition success among males when their sperm compete for eggs from females that were genetically either similar or dissimilar at the MH class I locus. Concurrently, we measured variation in spermatozoal traits that are known to influence relative fertilization success under these conditions. Contrary to the findings demonstrating mechanisms that promote MH complex heterozygosity, our results showed that males won significantly greater relative fertilization success when competing for eggs from genetically similar females at the MH class I. This result also showed covariation with the known influences of sperm velocity on relative fertilization success. We discuss these unexpected findings in relation to sperm-egg recognition and hybridization avoidance mechanisms based upon immunogenetic variation.</description><identifier>ISSN: 0962-8452</identifier><identifier>EISSN: 1471-2954</identifier><identifier>DOI: 10.1098/rspb.2008.1257</identifier><identifier>PMID: 18854296</identifier><language>eng</language><publisher>London: The Royal Society</publisher><subject>Alleles ; Animals ; Atlantic Salmon ; Cryptic Female Choice ; Female ; Female animals ; Fertilization ; Fertilization - genetics ; Genetic loci ; Genetic Variation ; Major Histocompatibility Complex - genetics ; Major Histocompatibility Genes ; Male ; Male animals ; Marine ; Mating behavior ; Ova ; Ovulation - genetics ; Salmo salar ; Salmo salar - physiology ; Salmon ; Selection, Genetic ; Sperm Competition ; Spermatozoa</subject><ispartof>Proceedings of the Royal Society. B, Biological sciences, 2009-02, Vol.276 (1656), p.559-566</ispartof><rights>Copyright 2008 The Royal Society</rights><rights>Copyright © 2008 The Royal Society</rights><rights>Copyright © 2008 The Royal Society 2008</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c721t-a0dfb10b5ec5f8ada80dbcce0ce3112b0073b7fc66556182042035f4a6a009d73</citedby><cites>FETCH-LOGICAL-c721t-a0dfb10b5ec5f8ada80dbcce0ce3112b0073b7fc66556182042035f4a6a009d73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/30244891$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/30244891$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,727,780,784,803,885,27924,27925,53791,53793,58017,58250</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18854296$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yeates, Sarah E</creatorcontrib><creatorcontrib>Einum, Sigurd</creatorcontrib><creatorcontrib>Fleming, Ian A</creatorcontrib><creatorcontrib>Megens, Hendrik-Jan</creatorcontrib><creatorcontrib>Stet, René J.M</creatorcontrib><creatorcontrib>Hindar, Kjetil</creatorcontrib><creatorcontrib>Holt, William V</creatorcontrib><creatorcontrib>Van Look, Katrien J.W</creatorcontrib><creatorcontrib>Gage, Matthew J.G</creatorcontrib><title>Atlantic salmon eggs favour sperm in competition that have similar major histocompatibility alleles</title><title>Proceedings of the Royal Society. B, Biological sciences</title><addtitle>PROC R SOC B</addtitle><description>Polyandry and post-copulatory sexual selection provide opportunities for the evolution of female differential sperm selection. Here, we examined the influence of variation in major histocompatibility (MH) class I allelic composition upon sperm competition dynamics in Atlantic salmon. We ran in vitro fertilization competitions that mimicked the gametic microenvironment, and replicated a paired-male experimental design that allowed us to compare differences in sperm competition success among males when their sperm compete for eggs from females that were genetically either similar or dissimilar at the MH class I locus. Concurrently, we measured variation in spermatozoal traits that are known to influence relative fertilization success under these conditions. Contrary to the findings demonstrating mechanisms that promote MH complex heterozygosity, our results showed that males won significantly greater relative fertilization success when competing for eggs from genetically similar females at the MH class I. This result also showed covariation with the known influences of sperm velocity on relative fertilization success. We discuss these unexpected findings in relation to sperm-egg recognition and hybridization avoidance mechanisms based upon immunogenetic variation.</description><subject>Alleles</subject><subject>Animals</subject><subject>Atlantic Salmon</subject><subject>Cryptic Female Choice</subject><subject>Female</subject><subject>Female animals</subject><subject>Fertilization</subject><subject>Fertilization - genetics</subject><subject>Genetic loci</subject><subject>Genetic Variation</subject><subject>Major Histocompatibility Complex - genetics</subject><subject>Major Histocompatibility Genes</subject><subject>Male</subject><subject>Male animals</subject><subject>Marine</subject><subject>Mating behavior</subject><subject>Ova</subject><subject>Ovulation - genetics</subject><subject>Salmo salar</subject><subject>Salmo salar - physiology</subject><subject>Salmon</subject><subject>Selection, Genetic</subject><subject>Sperm Competition</subject><subject>Spermatozoa</subject><issn>0962-8452</issn><issn>1471-2954</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFUk1v1DAUjBCILoUrN1BO3LI8O7HjXEBtRbtIRSC-rpbjOBtvkzjYzsLy63Ga1cIKUU6W9WbG8zwTRU8RLBEU7KV1Q7nEAGyJMMnvRQuU5SjBBcnuRwsoKE5YRvBJ9Mi5DQAUhJGH0QlijGS4oItInvlW9F7L2Im2M32s1msX12JrRhu7Qdku1n0sTTcor70OAN8IHzdiq2KnO90KG3diY2zcaOfNBBRel7rVfheLtlWtco-jB7VonXqyP0-jL5dvPl-skuv3V28vzq4TmWPkEwFVXSIoiZKkZqISDKpSSgVSpQjhEiBPy7yWlBJCEcOQYUhJnQkqwmJVnp5Gr2bdYSw7VUnVeytaPljdCbvjRmh-POl1w9dmyzEpMCFZEHixF7Dm26ic5512UrXhh5QZHac0JxlJ4b_AYAyCvUlxOQOlNc5ZVR_cIOBTgHwKkE8B8inAQHj-5w6_4fvEAiCdAdbswmcaqZXf8U2Iqw_Xf8ve3MX6-OnD-RbnVCNKKAeWIiAQisN_6mEvlVOunRsVv4Ucy__92rP5tU2ohD3skALOMlagME_meaiM-nGYC3vDaZ7mhH9lGV9dsnf4fEX5VcCjGd_odfNdW8WP1giXwbrZ4607QorAeX0nZ3IsTe9DFY6IvB7b0JmqTn8B5QQQDw</recordid><startdate>20090207</startdate><enddate>20090207</enddate><creator>Yeates, Sarah E</creator><creator>Einum, Sigurd</creator><creator>Fleming, Ian A</creator><creator>Megens, Hendrik-Jan</creator><creator>Stet, René J.M</creator><creator>Hindar, Kjetil</creator><creator>Holt, William V</creator><creator>Van Look, Katrien J.W</creator><creator>Gage, Matthew J.G</creator><general>The Royal Society</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7T5</scope><scope>7TN</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H94</scope><scope>H95</scope><scope>H98</scope><scope>H99</scope><scope>L.F</scope><scope>L.G</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20090207</creationdate><title>Atlantic salmon eggs favour sperm in competition that have similar major histocompatibility alleles</title><author>Yeates, Sarah E ; 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B, Biological sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yeates, Sarah E</au><au>Einum, Sigurd</au><au>Fleming, Ian A</au><au>Megens, Hendrik-Jan</au><au>Stet, René J.M</au><au>Hindar, Kjetil</au><au>Holt, William V</au><au>Van Look, Katrien J.W</au><au>Gage, Matthew J.G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Atlantic salmon eggs favour sperm in competition that have similar major histocompatibility alleles</atitle><jtitle>Proceedings of the Royal Society. B, Biological sciences</jtitle><addtitle>PROC R SOC B</addtitle><date>2009-02-07</date><risdate>2009</risdate><volume>276</volume><issue>1656</issue><spage>559</spage><epage>566</epage><pages>559-566</pages><issn>0962-8452</issn><eissn>1471-2954</eissn><abstract>Polyandry and post-copulatory sexual selection provide opportunities for the evolution of female differential sperm selection. Here, we examined the influence of variation in major histocompatibility (MH) class I allelic composition upon sperm competition dynamics in Atlantic salmon. We ran in vitro fertilization competitions that mimicked the gametic microenvironment, and replicated a paired-male experimental design that allowed us to compare differences in sperm competition success among males when their sperm compete for eggs from females that were genetically either similar or dissimilar at the MH class I locus. Concurrently, we measured variation in spermatozoal traits that are known to influence relative fertilization success under these conditions. Contrary to the findings demonstrating mechanisms that promote MH complex heterozygosity, our results showed that males won significantly greater relative fertilization success when competing for eggs from genetically similar females at the MH class I. This result also showed covariation with the known influences of sperm velocity on relative fertilization success. We discuss these unexpected findings in relation to sperm-egg recognition and hybridization avoidance mechanisms based upon immunogenetic variation.</abstract><cop>London</cop><pub>The Royal Society</pub><pmid>18854296</pmid><doi>10.1098/rspb.2008.1257</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Proceedings of the Royal Society. B, Biological sciences, 2009-02, Vol.276 (1656), p.559-566 |
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| source | MEDLINE; JSTOR Archive Collection A-Z Listing; PubMed Central |
| subjects | Alleles Animals Atlantic Salmon Cryptic Female Choice Female Female animals Fertilization Fertilization - genetics Genetic loci Genetic Variation Major Histocompatibility Complex - genetics Major Histocompatibility Genes Male Male animals Marine Mating behavior Ova Ovulation - genetics Salmo salar Salmo salar - physiology Salmon Selection, Genetic Sperm Competition Spermatozoa |
| title | Atlantic salmon eggs favour sperm in competition that have similar major histocompatibility alleles |
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