SPATIO‐TEMPORAL CHANGES IN THE STRUCTURE OF AN AUSTRALIAN FROG HYBRID ZONE: A 40‐YEAR PERSPECTIVE
Identifieur interne : 000274 ( Istex/Checkpoint ); précédent : 000273; suivant : 000275SPATIO‐TEMPORAL CHANGES IN THE STRUCTURE OF AN AUSTRALIAN FROG HYBRID ZONE: A 40‐YEAR PERSPECTIVE
Auteurs : Katie L. Smith [Australie] ; Joshua M. Hale [Australie] ; Laurène Gay [France] ; Michael Kearney [Australie] ; Jeremy J. Austin [Australie] ; Kirsten M. Parris [Australie] ; Jane Melville [Australie]Source :
- Evolution [ 0014-3820 ] ; 2013-12.
Descripteurs français
- Wicri :
- topic : Parc national, Densité de population.
English descriptors
- KwdEn :
- Acoustic, Acoustic data, Acoustic datasets, Acoustic structure, Akaike information criterion, Anthropogenic, Anthropogenic changes, Bimodal, Buggs, Central region, Cline, Cline analysis, Concordance, Contact zone, Dataset, Datasets, December, Dispersal, Ecol, Evolution december, Evolutionary process, Ewingi, Ewingii, Frog, Further analyses, Gene flow, Genetic, Glenburn, Glenburn transect, Haplotype, Hewitt, Historical samples, Historical studies, Historical time periods, Hybrid, Hybrid fitness, Hybrid zone, Hybrid zone movement, Hybrid zone structure, Hybrid zones, Hybridization, Individual clines, Initial studies, Introgression, Kinglake, Linkage disequilibrium, Litoria, Litoria ewingi, Litoria ewingii, Litoria paraewingi, Littlejohn, Male advertisement, Melba highway, Melbourne, Mitochondrial, Mtdna, Museum specimens, Museum victoria, National park, Overall stability, Paraewingi, Permanent water bodies, Phenotypic, Phenotypic variance, Population density, Primer, Reproductive isolation, Sampling sites, Southeastern australia, Southern boundary, Special section, Speciation, State forest, Tension zone, Tension zones, Theoretical models, Time period, Time periods, Toolangi, Transect, Trends ecol, Unimodal, Variance, Zone.
- Teeft :
- Acoustic, Acoustic data, Acoustic datasets, Acoustic structure, Akaike information criterion, Anthropogenic, Anthropogenic changes, Bimodal, Buggs, Central region, Cline, Cline analysis, Concordance, Contact zone, Dataset, Datasets, December, Dispersal, Ecol, Evolution december, Evolutionary process, Ewingi, Ewingii, Frog, Further analyses, Gene flow, Genetic, Glenburn, Glenburn transect, Haplotype, Hewitt, Historical samples, Historical studies, Historical time periods, Hybrid, Hybrid fitness, Hybrid zone, Hybrid zone movement, Hybrid zone structure, Hybrid zones, Hybridization, Individual clines, Initial studies, Introgression, Kinglake, Linkage disequilibrium, Litoria, Litoria ewingi, Litoria ewingii, Litoria paraewingi, Littlejohn, Male advertisement, Melba highway, Melbourne, Mitochondrial, Mtdna, Museum specimens, Museum victoria, National park, Overall stability, Paraewingi, Permanent water bodies, Phenotypic, Phenotypic variance, Population density, Primer, Reproductive isolation, Sampling sites, Southeastern australia, Southern boundary, Special section, Speciation, State forest, Tension zone, Tension zones, Theoretical models, Time period, Time periods, Toolangi, Transect, Trends ecol, Unimodal, Variance, Zone.
Abstract
Spatio‐temporal studies of hybrid zones provide an opportunity to test evolutionary hypotheses of hybrid zone maintenance and movement. We conducted a landscape genetics study on a classic hybrid zone of the south‐eastern Australian frogs, Litoria ewingii and Litoria paraewingi. This hybrid zone has been comprehensively studied since the 1960s, providing the unique opportunity to directly assess changes in hybrid zone structure across time. We compared both mtDNA and male advertisement call data from two time periods (present and 1960s). Clinal analysis of the coincidence (same center) and concordance (same width) of these traits indicated that the center of the hybrid zone has shifted 1 km south over the last 40 years, although the width of the zone and the rate of introgression remained unchanged. The low frequency of hybrids, the strong concordance of clines within a time period, and the small but significant movement across the study period despite significant anthropogenic changes through the region, suggest the hybrid zone is a tension zone located within a low‐density trough. Hybrid zone movement has not been considered common in the past but our findings highlight that it should be considered a crucial component to our understanding of evolution.
Url:
DOI: 10.1111/evo.12140
Affiliations:
- Australie, France
- Languedoc-Roussillon, Occitanie (région administrative), Victoria (État)
- Melbourne, Montpellier
- Université de Melbourne
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Parris</name><affiliation wicri:level="4"><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Botany, University of Melbourne, VIC, 3010</wicri:regionArea><orgName type="university">Université de Melbourne</orgName><placeName><settlement type="city">Melbourne</settlement><region type="état">Victoria (État)</region></placeName></affiliation></author><author><name sortKey="Melville, Jane" sort="Melville, Jane" uniqKey="Melville J" first="Jane" last="Melville">Jane Melville</name><affiliation wicri:level="3"><country xml:lang="fr">Australie</country><wicri:regionArea>Sciences Department, Museum Victoria, VIC, 3001, Melbourne</wicri:regionArea><placeName><settlement type="city">Melbourne</settlement><region type="état">Victoria (État)</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Evolution</title><title level="j" type="alt">EVOLUTION</title><idno type="ISSN">0014-3820</idno><idno type="eISSN">1558-5646</idno><imprint><biblScope unit="vol">67</biblScope><biblScope unit="issue">12</biblScope><biblScope unit="page" from="3442">3442</biblScope><biblScope unit="page" to="3454">3454</biblScope><biblScope unit="page-count">13</biblScope><date type="published" when="2013-12">2013-12</date></imprint><idno type="ISSN">0014-3820</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0014-3820</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic</term><term>Acoustic data</term><term>Acoustic datasets</term><term>Acoustic structure</term><term>Akaike information criterion</term><term>Anthropogenic</term><term>Anthropogenic changes</term><term>Bimodal</term><term>Buggs</term><term>Central region</term><term>Cline</term><term>Cline analysis</term><term>Concordance</term><term>Contact zone</term><term>Dataset</term><term>Datasets</term><term>December</term><term>Dispersal</term><term>Ecol</term><term>Evolution december</term><term>Evolutionary process</term><term>Ewingi</term><term>Ewingii</term><term>Frog</term><term>Further analyses</term><term>Gene flow</term><term>Genetic</term><term>Glenburn</term><term>Glenburn transect</term><term>Haplotype</term><term>Hewitt</term><term>Historical samples</term><term>Historical studies</term><term>Historical time periods</term><term>Hybrid</term><term>Hybrid fitness</term><term>Hybrid zone</term><term>Hybrid zone movement</term><term>Hybrid zone structure</term><term>Hybrid zones</term><term>Hybridization</term><term>Individual clines</term><term>Initial studies</term><term>Introgression</term><term>Kinglake</term><term>Linkage disequilibrium</term><term>Litoria</term><term>Litoria ewingi</term><term>Litoria ewingii</term><term>Litoria paraewingi</term><term>Littlejohn</term><term>Male advertisement</term><term>Melba highway</term><term>Melbourne</term><term>Mitochondrial</term><term>Mtdna</term><term>Museum specimens</term><term>Museum victoria</term><term>National park</term><term>Overall stability</term><term>Paraewingi</term><term>Permanent water bodies</term><term>Phenotypic</term><term>Phenotypic variance</term><term>Population density</term><term>Primer</term><term>Reproductive isolation</term><term>Sampling sites</term><term>Southeastern australia</term><term>Southern boundary</term><term>Special section</term><term>Speciation</term><term>State forest</term><term>Tension zone</term><term>Tension zones</term><term>Theoretical models</term><term>Time period</term><term>Time periods</term><term>Toolangi</term><term>Transect</term><term>Trends ecol</term><term>Unimodal</term><term>Variance</term><term>Zone</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Acoustic</term><term>Acoustic data</term><term>Acoustic datasets</term><term>Acoustic structure</term><term>Akaike information criterion</term><term>Anthropogenic</term><term>Anthropogenic changes</term><term>Bimodal</term><term>Buggs</term><term>Central region</term><term>Cline</term><term>Cline analysis</term><term>Concordance</term><term>Contact zone</term><term>Dataset</term><term>Datasets</term><term>December</term><term>Dispersal</term><term>Ecol</term><term>Evolution december</term><term>Evolutionary process</term><term>Ewingi</term><term>Ewingii</term><term>Frog</term><term>Further analyses</term><term>Gene flow</term><term>Genetic</term><term>Glenburn</term><term>Glenburn transect</term><term>Haplotype</term><term>Hewitt</term><term>Historical samples</term><term>Historical studies</term><term>Historical time periods</term><term>Hybrid</term><term>Hybrid fitness</term><term>Hybrid zone</term><term>Hybrid zone movement</term><term>Hybrid zone structure</term><term>Hybrid zones</term><term>Hybridization</term><term>Individual clines</term><term>Initial studies</term><term>Introgression</term><term>Kinglake</term><term>Linkage disequilibrium</term><term>Litoria</term><term>Litoria ewingi</term><term>Litoria ewingii</term><term>Litoria paraewingi</term><term>Littlejohn</term><term>Male advertisement</term><term>Melba highway</term><term>Melbourne</term><term>Mitochondrial</term><term>Mtdna</term><term>Museum specimens</term><term>Museum victoria</term><term>National park</term><term>Overall stability</term><term>Paraewingi</term><term>Permanent water bodies</term><term>Phenotypic</term><term>Phenotypic variance</term><term>Population density</term><term>Primer</term><term>Reproductive isolation</term><term>Sampling sites</term><term>Southeastern australia</term><term>Southern boundary</term><term>Special section</term><term>Speciation</term><term>State forest</term><term>Tension zone</term><term>Tension zones</term><term>Theoretical models</term><term>Time period</term><term>Time periods</term><term>Toolangi</term><term>Transect</term><term>Trends ecol</term><term>Unimodal</term><term>Variance</term><term>Zone</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Parc national</term><term>Densité de population</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">Spatio‐temporal studies of hybrid zones provide an opportunity to test evolutionary hypotheses of hybrid zone maintenance and movement. We conducted a landscape genetics study on a classic hybrid zone of the south‐eastern Australian frogs, Litoria ewingii and Litoria paraewingi. This hybrid zone has been comprehensively studied since the 1960s, providing the unique opportunity to directly assess changes in hybrid zone structure across time. We compared both mtDNA and male advertisement call data from two time periods (present and 1960s). Clinal analysis of the coincidence (same center) and concordance (same width) of these traits indicated that the center of the hybrid zone has shifted 1 km south over the last 40 years, although the width of the zone and the rate of introgression remained unchanged. The low frequency of hybrids, the strong concordance of clines within a time period, and the small but significant movement across the study period despite significant anthropogenic changes through the region, suggest the hybrid zone is a tension zone located within a low‐density trough. Hybrid zone movement has not been considered common in the past but our findings highlight that it should be considered a crucial component to our understanding of evolution.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li><li>Victoria (État)</li></region><settlement><li>Melbourne</li><li>Montpellier</li></settlement><orgName><li>Université de Melbourne</li></orgName></list><tree><country name="Australie"><noRegion><name sortKey="Smith, Katie L" sort="Smith, Katie L" uniqKey="Smith K" first="Katie L." last="Smith">Katie L. Smith</name></noRegion><name sortKey="Austin, Jeremy J" sort="Austin, Jeremy J" uniqKey="Austin J" first="Jeremy J." last="Austin">Jeremy J. Austin</name><name sortKey="Austin, Jeremy J" sort="Austin, Jeremy J" uniqKey="Austin J" first="Jeremy J." last="Austin">Jeremy J. Austin</name><name sortKey="Hale, Joshua M" sort="Hale, Joshua M" uniqKey="Hale J" first="Joshua M." last="Hale">Joshua M. Hale</name><name sortKey="Hale, Joshua M" sort="Hale, Joshua M" uniqKey="Hale J" first="Joshua M." last="Hale">Joshua M. Hale</name><name sortKey="Hale, Joshua M" sort="Hale, Joshua M" uniqKey="Hale J" first="Joshua M." last="Hale">Joshua M. Hale</name><name sortKey="Kearney, Michael" sort="Kearney, Michael" uniqKey="Kearney M" first="Michael" last="Kearney">Michael Kearney</name><name sortKey="Melville, Jane" sort="Melville, Jane" uniqKey="Melville J" first="Jane" last="Melville">Jane Melville</name><name sortKey="Parris, Kirsten M" sort="Parris, Kirsten M" uniqKey="Parris K" first="Kirsten M." last="Parris">Kirsten M. Parris</name><name sortKey="Smith, Katie L" sort="Smith, Katie L" uniqKey="Smith K" first="Katie L." last="Smith">Katie L. Smith</name><name sortKey="Smith, Katie L" sort="Smith, Katie L" uniqKey="Smith K" first="Katie L." last="Smith">Katie L. Smith</name><name sortKey="Smith, Katie L" sort="Smith, Katie L" uniqKey="Smith K" first="Katie L." last="Smith">Katie L. Smith</name><name sortKey="Smith, Katie L" sort="Smith, Katie L" uniqKey="Smith K" first="Katie L." last="Smith">Katie L. Smith</name></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Gay, Laurene" sort="Gay, Laurene" uniqKey="Gay L" first="Laurène" last="Gay">Laurène Gay</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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