Size and shape of the semicircular canal of the inner ear: A new marker of pig domestication?
Domestication has led to many changes in domestic animal biology, including their anatomy. The shape of the inner ear, part of the mammalian ear, has been found particularly relevant for discriminating domesticated species, their hybrids or differentiating the wild and domestic populations of a sing...
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Veröffentlicht in: | Journal of experimental zoology. Part B, Molecular and developmental evolution Molecular and developmental evolution, 2022-12, Vol.338 (8), p.552-560 |
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container_title | Journal of experimental zoology. Part B, Molecular and developmental evolution |
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creator | Evin, Allowen David, Loïc Souron, Antoine Mennecart, Bastien Orliac, Maeva Lebrun, Renaud |
description | Domestication has led to many changes in domestic animal biology, including their anatomy. The shape of the inner ear, part of the mammalian ear, has been found particularly relevant for discriminating domesticated species, their hybrids or differentiating the wild and domestic populations of a single species. Here we assessed the use of the size and shape of the semicircular canals (SCC) of the inner ear as a marker of pig domestication. We studied a total of 63 petrosal bones belonging to wild boar (Sus scrofa, two populations) and domestic pigs (extensively and intensively reared specimens) that were µCT‐scanned and from which the size and the shape of the inner ear were quantified through geometric morphometrics, analyzing the 3D coordinates of 6 landmarks and 60 sliding semilandmarks localized on the SCC and the common crus. The domestic pigs have larger SCC than the wild boar from which they also strongly differ in shape (correct cross validation of 95.5%, confidence interval: 92.3%–98.1%). Strong shape differences were detected between the two populations of wild boar, as well as a sexual size dimorphism. All together the results highlight the taxonomic discriminant power of the SCC of the inner ear shape, and its relevance for domestication studies.
Wild boar and domestic pigs strongly differ in their semicircular canals shape as highlithed by the two first axes of a Principal Component Analysis.
RESEARCH HIGHLIGHTS
The semicircular canals (SCC) shape allow to discriminate wild boar and domestic pig with a correct cross validation of 95.5%
Domestic pigs have larger SCC than the wild boar • Wild boar populations differ in their SCC shape not size.
The shape of the semicircular canal of the inner ear can be used as a marker of domestication |
doi_str_mv | 10.1002/jez.b.23127 |
format | Article |
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Wild boar and domestic pigs strongly differ in their semicircular canals shape as highlithed by the two first axes of a Principal Component Analysis.
RESEARCH HIGHLIGHTS
The semicircular canals (SCC) shape allow to discriminate wild boar and domestic pig with a correct cross validation of 95.5%
Domestic pigs have larger SCC than the wild boar • Wild boar populations differ in their SCC shape not size.
The shape of the semicircular canal of the inner ear can be used as a marker of domestication</description><identifier>ISSN: 1552-5007</identifier><identifier>EISSN: 1552-5015</identifier><identifier>DOI: 10.1002/jez.b.23127</identifier><identifier>PMID: 35226406</identifier><language>eng</language><publisher>United States: Wiley</publisher><subject>Animal biology ; Animals ; Biodiversity ; Domestication ; geometric morphometrics ; Life Sciences ; petrosal bone ; Populations and Evolution ; Semicircular Canals ; Sus scrofa ; Swine ; Vertebrate Zoology ; X‐ray tomography</subject><ispartof>Journal of experimental zoology. Part B, Molecular and developmental evolution, 2022-12, Vol.338 (8), p.552-560</ispartof><rights>2022 The Authors. published by Wiley Periodicals LLC</rights><rights>2022 The Authors. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution published by Wiley Periodicals LLC.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5247-73538b5dad89c61762e136b4cf45ba263b0f35a9d8aea764cf916fd503431fe03</citedby><cites>FETCH-LOGICAL-c5247-73538b5dad89c61762e136b4cf45ba263b0f35a9d8aea764cf916fd503431fe03</cites><orcidid>0000-0002-5819-2653 ; 0000-0002-8922-8356 ; 0000-0002-9669-2907 ; 0000-0003-4515-1649 ; 0000-0001-7384-4974</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjez.b.23127$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjez.b.23127$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>230,314,780,784,885,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35226406$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-03752056$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Evin, Allowen</creatorcontrib><creatorcontrib>David, Loïc</creatorcontrib><creatorcontrib>Souron, Antoine</creatorcontrib><creatorcontrib>Mennecart, Bastien</creatorcontrib><creatorcontrib>Orliac, Maeva</creatorcontrib><creatorcontrib>Lebrun, Renaud</creatorcontrib><title>Size and shape of the semicircular canal of the inner ear: A new marker of pig domestication?</title><title>Journal of experimental zoology. Part B, Molecular and developmental evolution</title><addtitle>J Exp Zool B Mol Dev Evol</addtitle><description>Domestication has led to many changes in domestic animal biology, including their anatomy. The shape of the inner ear, part of the mammalian ear, has been found particularly relevant for discriminating domesticated species, their hybrids or differentiating the wild and domestic populations of a single species. Here we assessed the use of the size and shape of the semicircular canals (SCC) of the inner ear as a marker of pig domestication. We studied a total of 63 petrosal bones belonging to wild boar (Sus scrofa, two populations) and domestic pigs (extensively and intensively reared specimens) that were µCT‐scanned and from which the size and the shape of the inner ear were quantified through geometric morphometrics, analyzing the 3D coordinates of 6 landmarks and 60 sliding semilandmarks localized on the SCC and the common crus. The domestic pigs have larger SCC than the wild boar from which they also strongly differ in shape (correct cross validation of 95.5%, confidence interval: 92.3%–98.1%). Strong shape differences were detected between the two populations of wild boar, as well as a sexual size dimorphism. All together the results highlight the taxonomic discriminant power of the SCC of the inner ear shape, and its relevance for domestication studies.
Wild boar and domestic pigs strongly differ in their semicircular canals shape as highlithed by the two first axes of a Principal Component Analysis.
RESEARCH HIGHLIGHTS
The semicircular canals (SCC) shape allow to discriminate wild boar and domestic pig with a correct cross validation of 95.5%
Domestic pigs have larger SCC than the wild boar • Wild boar populations differ in their SCC shape not size.
The shape of the semicircular canal of the inner ear can be used as a marker of domestication</description><subject>Animal biology</subject><subject>Animals</subject><subject>Biodiversity</subject><subject>Domestication</subject><subject>geometric morphometrics</subject><subject>Life Sciences</subject><subject>petrosal bone</subject><subject>Populations and Evolution</subject><subject>Semicircular Canals</subject><subject>Sus scrofa</subject><subject>Swine</subject><subject>Vertebrate Zoology</subject><subject>X‐ray tomography</subject><issn>1552-5007</issn><issn>1552-5015</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><sourceid>EIF</sourceid><recordid>eNp9kUtPGzEUhS3UimdX3VdeFqGkfoztTBdUAVFoFYkFdFOpsu547hDTGU9qJyD49TUMRC0LVrbO-Xx8rw4h7zkbc8bEp2u8H1djIbkwG2SbKyVGinH1Zn1nZovspHSdYc2U2iRbUgmhC6a3ya8Lf48UQk3THBZI-4Yu50gTdt756FYtROogQPvs-BAwUoT4mU5pwFvaQfydlWwv_BWt-w7T0jtY-j582SNvG2gTvns6d8mPryeXx2ej2fnpt-PpbOSUKMzISCUnlaqhnpROc6MFcqmrwjWFqkBoWbFGKijrCSAYnfWS66ZWTBaSN8jkLjkccherqsPaYVhGaO0i-jzdne3B2_-d4Of2qr-xpSmZYSYH7A8B8xfPzqYz-6AxaZRgSt_wzH58-iz2f1Z5W9v55LBtIWC_SjbPWygu-aTI6MGAutinFLFZZ3NmH8qzuTxb2cfyMv3h3y3W7HNbGRADcOtbvHsty34_-Xk0pP4Fg2ikog</recordid><startdate>202212</startdate><enddate>202212</enddate><creator>Evin, Allowen</creator><creator>David, Loïc</creator><creator>Souron, Antoine</creator><creator>Mennecart, Bastien</creator><creator>Orliac, Maeva</creator><creator>Lebrun, Renaud</creator><general>Wiley</general><general>John Wiley and Sons Inc</general><scope>24P</scope><scope>WIN</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>7X8</scope><scope>1XC</scope><scope>VOOES</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-5819-2653</orcidid><orcidid>https://orcid.org/0000-0002-8922-8356</orcidid><orcidid>https://orcid.org/0000-0002-9669-2907</orcidid><orcidid>https://orcid.org/0000-0003-4515-1649</orcidid><orcidid>https://orcid.org/0000-0001-7384-4974</orcidid></search><sort><creationdate>202212</creationdate><title>Size and shape of the semicircular canal of the inner ear: A new marker of pig domestication?</title><author>Evin, Allowen ; David, Loïc ; Souron, Antoine ; Mennecart, Bastien ; Orliac, Maeva ; Lebrun, Renaud</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5247-73538b5dad89c61762e136b4cf45ba263b0f35a9d8aea764cf916fd503431fe03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Animal biology</topic><topic>Animals</topic><topic>Biodiversity</topic><topic>Domestication</topic><topic>geometric morphometrics</topic><topic>Life Sciences</topic><topic>petrosal bone</topic><topic>Populations and Evolution</topic><topic>Semicircular Canals</topic><topic>Sus scrofa</topic><topic>Swine</topic><topic>Vertebrate Zoology</topic><topic>X‐ray tomography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Evin, Allowen</creatorcontrib><creatorcontrib>David, Loïc</creatorcontrib><creatorcontrib>Souron, Antoine</creatorcontrib><creatorcontrib>Mennecart, Bastien</creatorcontrib><creatorcontrib>Orliac, Maeva</creatorcontrib><creatorcontrib>Lebrun, Renaud</creatorcontrib><collection>Wiley Online Library Open Access</collection><collection>Wiley Online Library Free Content</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Journal of experimental zoology. Part B, Molecular and developmental evolution</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Evin, Allowen</au><au>David, Loïc</au><au>Souron, Antoine</au><au>Mennecart, Bastien</au><au>Orliac, Maeva</au><au>Lebrun, Renaud</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Size and shape of the semicircular canal of the inner ear: A new marker of pig domestication?</atitle><jtitle>Journal of experimental zoology. Part B, Molecular and developmental evolution</jtitle><addtitle>J Exp Zool B Mol Dev Evol</addtitle><date>2022-12</date><risdate>2022</risdate><volume>338</volume><issue>8</issue><spage>552</spage><epage>560</epage><pages>552-560</pages><issn>1552-5007</issn><eissn>1552-5015</eissn><abstract>Domestication has led to many changes in domestic animal biology, including their anatomy. The shape of the inner ear, part of the mammalian ear, has been found particularly relevant for discriminating domesticated species, their hybrids or differentiating the wild and domestic populations of a single species. Here we assessed the use of the size and shape of the semicircular canals (SCC) of the inner ear as a marker of pig domestication. We studied a total of 63 petrosal bones belonging to wild boar (Sus scrofa, two populations) and domestic pigs (extensively and intensively reared specimens) that were µCT‐scanned and from which the size and the shape of the inner ear were quantified through geometric morphometrics, analyzing the 3D coordinates of 6 landmarks and 60 sliding semilandmarks localized on the SCC and the common crus. The domestic pigs have larger SCC than the wild boar from which they also strongly differ in shape (correct cross validation of 95.5%, confidence interval: 92.3%–98.1%). Strong shape differences were detected between the two populations of wild boar, as well as a sexual size dimorphism. All together the results highlight the taxonomic discriminant power of the SCC of the inner ear shape, and its relevance for domestication studies.
Wild boar and domestic pigs strongly differ in their semicircular canals shape as highlithed by the two first axes of a Principal Component Analysis.
RESEARCH HIGHLIGHTS
The semicircular canals (SCC) shape allow to discriminate wild boar and domestic pig with a correct cross validation of 95.5%
Domestic pigs have larger SCC than the wild boar • Wild boar populations differ in their SCC shape not size.
The shape of the semicircular canal of the inner ear can be used as a marker of domestication</abstract><cop>United States</cop><pub>Wiley</pub><pmid>35226406</pmid><doi>10.1002/jez.b.23127</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-5819-2653</orcidid><orcidid>https://orcid.org/0000-0002-8922-8356</orcidid><orcidid>https://orcid.org/0000-0002-9669-2907</orcidid><orcidid>https://orcid.org/0000-0003-4515-1649</orcidid><orcidid>https://orcid.org/0000-0001-7384-4974</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Animal biology Animals Biodiversity Domestication geometric morphometrics Life Sciences petrosal bone Populations and Evolution Semicircular Canals Sus scrofa Swine Vertebrate Zoology X‐ray tomography |
title | Size and shape of the semicircular canal of the inner ear: A new marker of pig domestication? |
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