Loading…

Hybrid Dysfunction in Fire-Bellied Toads (Bombina)

Reproductive isolation between two taxa may be due to endogenous selection, which is generated by incompatibilities between the respective genomes, to exogenous selection, which is generated by differential adaptations to alternative environments, or to both. The continuing debate over the relative...

Full description

Saved in:
Bibliographic Details
Published in:Evolution 1999-10, Vol.53 (5), p.1611-1616
Main Authors: Loeske E. B. Kruuk, Gilchrist, Jason S., Barton, Nick H.
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c5135-9aa73b376f76a8e2075ed39681395c726e735454d74a29dee9df8c4352cb730f3
cites cdi_FETCH-LOGICAL-c5135-9aa73b376f76a8e2075ed39681395c726e735454d74a29dee9df8c4352cb730f3
container_end_page 1616
container_issue 5
container_start_page 1611
container_title Evolution
container_volume 53
creator Loeske E. B. Kruuk
Gilchrist, Jason S.
Barton, Nick H.
description Reproductive isolation between two taxa may be due to endogenous selection, which is generated by incompatibilities between the respective genomes, to exogenous selection, which is generated by differential adaptations to alternative environments, or to both. The continuing debate over the relative importance of either mode of selection has highlighted the need for unambiguous data on the fitness of hybrid genotypes. The hybrid zone between the fire-bellied toad (Bombina bombina) and the yellow-bellied toad (B. variegata) in central Europe involves adaptation to different environments, but evidence of hybrid dysfunction is equivocal. In this study, we followed the development under laboratory conditions of naturally laid eggs collected from a transect across the Bombina hybrid zone in Croatia. Fitness was significantly reduced in hybrid populations: Egg batches from the center of the hybrid zone showed significantly higher embryonic and larval mortality and higher frequencies of morphological abnormalities relative to either parental type. Overall mortality from day of egg collection to three weeks after hatching reached 20% in central hybrid populations, compared to 2% in pure populations. There was no significant difference in fitness between two parental types. Within hybrid populations, there was considerable variation in fitness, with some genotypes showing no evidence of reduced viability. We discuss the implications of these findings for our understanding of barriers to gene flow between species.
doi_str_mv 10.1111/j.1558-5646.1999.tb05425.x
format article
fullrecord <record><control><sourceid>jstor_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_1904904135</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><jstor_id>2640907</jstor_id><sourcerecordid>2640907</sourcerecordid><originalsourceid>FETCH-LOGICAL-c5135-9aa73b376f76a8e2075ed39681395c726e735454d74a29dee9df8c4352cb730f3</originalsourceid><addsrcrecordid>eNqVkV1r2zAUhsVYabK2f2GYMEZ7Yffo40hWr7Z2_YJCbtreCtmWQSaxOylmzb-fsqRh7GJQIdABPec90vsSMqNQ0LTOu4IiljlKIQuqtS5WFaBgWLx-INP91UcyBaAi5yWDCfkUYwcAGqk-JBNWokREMSXsbl0F32Q_1rEd-3rlhz7zfXbjg8sv3WLhXZM9DraJ2enlsKx8b8-OyUFrF9Gd7M4j8nRz_Xh1lz_Mb--vvj_kNVKOubZW8Yor2SppS8dAoWu4liXlGmvFpFMcBYpGCct045xu2rIWHFldKQ4tPyKnW92XMPwcXVyZpY91epPt3TBGQzWItNOshH79P6oEUxpoAmf_gN0whj59wzCmQDBJywRdbKE6DDEG15qX4Jc2rA0Fs0nAdGZjs9nYbDYJmF0C5jU1f95NGKula_atb5Yn4NsW-OUXbv0OaXP9PP9TJokvW4kurobwtwTjoAyTAjQo_htS5Z4V</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>227042618</pqid></control><display><type>article</type><title>Hybrid Dysfunction in Fire-Bellied Toads (Bombina)</title><source>JSTOR Archival Journals and Primary Sources Collection</source><creator>Loeske E. B. Kruuk ; Gilchrist, Jason S. ; Barton, Nick H.</creator><creatorcontrib>Loeske E. B. Kruuk ; Gilchrist, Jason S. ; Barton, Nick H.</creatorcontrib><description>Reproductive isolation between two taxa may be due to endogenous selection, which is generated by incompatibilities between the respective genomes, to exogenous selection, which is generated by differential adaptations to alternative environments, or to both. The continuing debate over the relative importance of either mode of selection has highlighted the need for unambiguous data on the fitness of hybrid genotypes. The hybrid zone between the fire-bellied toad (Bombina bombina) and the yellow-bellied toad (B. variegata) in central Europe involves adaptation to different environments, but evidence of hybrid dysfunction is equivocal. In this study, we followed the development under laboratory conditions of naturally laid eggs collected from a transect across the Bombina hybrid zone in Croatia. Fitness was significantly reduced in hybrid populations: Egg batches from the center of the hybrid zone showed significantly higher embryonic and larval mortality and higher frequencies of morphological abnormalities relative to either parental type. Overall mortality from day of egg collection to three weeks after hatching reached 20% in central hybrid populations, compared to 2% in pure populations. There was no significant difference in fitness between two parental types. Within hybrid populations, there was considerable variation in fitness, with some genotypes showing no evidence of reduced viability. We discuss the implications of these findings for our understanding of barriers to gene flow between species.</description><identifier>ISSN: 0014-3820</identifier><identifier>EISSN: 1558-5646</identifier><identifier>DOI: 10.1111/j.1558-5646.1999.tb05425.x</identifier><identifier>PMID: 28565554</identifier><language>eng</language><publisher>United States: Society for the Study of Evolution</publisher><subject>Amphibia ; Animal reproduction ; Biology ; Bombina bombina ; Bombina variegata ; Brief Communications ; Croatia ; Eggs ; Embryonic mortality ; Evolution ; Hatching ; hybrid zone ; Hybridity ; Larvae ; Mortality ; natural selection ; reproductive isolation ; Reptiles &amp; amphibians ; Speciation ; Taxa ; Toads</subject><ispartof>Evolution, 1999-10, Vol.53 (5), p.1611-1616</ispartof><rights>Copyright 1999 The Society for the Study of Evolution</rights><rights>1999 The Society for the Study of Evolution</rights><rights>1999 The Society for the Study of Evolution.</rights><rights>Copyright Society for the Study of Evolution Oct 1999</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5135-9aa73b376f76a8e2075ed39681395c726e735454d74a29dee9df8c4352cb730f3</citedby><cites>FETCH-LOGICAL-c5135-9aa73b376f76a8e2075ed39681395c726e735454d74a29dee9df8c4352cb730f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/2640907$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/2640907$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,58238,58471</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28565554$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Loeske E. B. Kruuk</creatorcontrib><creatorcontrib>Gilchrist, Jason S.</creatorcontrib><creatorcontrib>Barton, Nick H.</creatorcontrib><title>Hybrid Dysfunction in Fire-Bellied Toads (Bombina)</title><title>Evolution</title><addtitle>Evolution</addtitle><description>Reproductive isolation between two taxa may be due to endogenous selection, which is generated by incompatibilities between the respective genomes, to exogenous selection, which is generated by differential adaptations to alternative environments, or to both. The continuing debate over the relative importance of either mode of selection has highlighted the need for unambiguous data on the fitness of hybrid genotypes. The hybrid zone between the fire-bellied toad (Bombina bombina) and the yellow-bellied toad (B. variegata) in central Europe involves adaptation to different environments, but evidence of hybrid dysfunction is equivocal. In this study, we followed the development under laboratory conditions of naturally laid eggs collected from a transect across the Bombina hybrid zone in Croatia. Fitness was significantly reduced in hybrid populations: Egg batches from the center of the hybrid zone showed significantly higher embryonic and larval mortality and higher frequencies of morphological abnormalities relative to either parental type. Overall mortality from day of egg collection to three weeks after hatching reached 20% in central hybrid populations, compared to 2% in pure populations. There was no significant difference in fitness between two parental types. Within hybrid populations, there was considerable variation in fitness, with some genotypes showing no evidence of reduced viability. We discuss the implications of these findings for our understanding of barriers to gene flow between species.</description><subject>Amphibia</subject><subject>Animal reproduction</subject><subject>Biology</subject><subject>Bombina bombina</subject><subject>Bombina variegata</subject><subject>Brief Communications</subject><subject>Croatia</subject><subject>Eggs</subject><subject>Embryonic mortality</subject><subject>Evolution</subject><subject>Hatching</subject><subject>hybrid zone</subject><subject>Hybridity</subject><subject>Larvae</subject><subject>Mortality</subject><subject>natural selection</subject><subject>reproductive isolation</subject><subject>Reptiles &amp; amphibians</subject><subject>Speciation</subject><subject>Taxa</subject><subject>Toads</subject><issn>0014-3820</issn><issn>1558-5646</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNqVkV1r2zAUhsVYabK2f2GYMEZ7Yffo40hWr7Z2_YJCbtreCtmWQSaxOylmzb-fsqRh7GJQIdABPec90vsSMqNQ0LTOu4IiljlKIQuqtS5WFaBgWLx-INP91UcyBaAi5yWDCfkUYwcAGqk-JBNWokREMSXsbl0F32Q_1rEd-3rlhz7zfXbjg8sv3WLhXZM9DraJ2enlsKx8b8-OyUFrF9Gd7M4j8nRz_Xh1lz_Mb--vvj_kNVKOubZW8Yor2SppS8dAoWu4liXlGmvFpFMcBYpGCct045xu2rIWHFldKQ4tPyKnW92XMPwcXVyZpY91epPt3TBGQzWItNOshH79P6oEUxpoAmf_gN0whj59wzCmQDBJywRdbKE6DDEG15qX4Jc2rA0Fs0nAdGZjs9nYbDYJmF0C5jU1f95NGKula_atb5Yn4NsW-OUXbv0OaXP9PP9TJokvW4kurobwtwTjoAyTAjQo_htS5Z4V</recordid><startdate>199910</startdate><enddate>199910</enddate><creator>Loeske E. B. Kruuk</creator><creator>Gilchrist, Jason S.</creator><creator>Barton, Nick H.</creator><general>Society for the Study of Evolution</general><general>Oxford University Press</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QR</scope><scope>7SN</scope><scope>7SS</scope><scope>7TK</scope><scope>7TM</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>7X8</scope></search><sort><creationdate>199910</creationdate><title>Hybrid Dysfunction in Fire-Bellied Toads (Bombina)</title><author>Loeske E. B. Kruuk ; Gilchrist, Jason S. ; Barton, Nick H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5135-9aa73b376f76a8e2075ed39681395c726e735454d74a29dee9df8c4352cb730f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Amphibia</topic><topic>Animal reproduction</topic><topic>Biology</topic><topic>Bombina bombina</topic><topic>Bombina variegata</topic><topic>Brief Communications</topic><topic>Croatia</topic><topic>Eggs</topic><topic>Embryonic mortality</topic><topic>Evolution</topic><topic>Hatching</topic><topic>hybrid zone</topic><topic>Hybridity</topic><topic>Larvae</topic><topic>Mortality</topic><topic>natural selection</topic><topic>reproductive isolation</topic><topic>Reptiles &amp; amphibians</topic><topic>Speciation</topic><topic>Taxa</topic><topic>Toads</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Loeske E. B. Kruuk</creatorcontrib><creatorcontrib>Gilchrist, Jason S.</creatorcontrib><creatorcontrib>Barton, Nick H.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 1: Biological Sciences &amp; Living Resources</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><collection>MEDLINE - Academic</collection><jtitle>Evolution</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Loeske E. B. Kruuk</au><au>Gilchrist, Jason S.</au><au>Barton, Nick H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hybrid Dysfunction in Fire-Bellied Toads (Bombina)</atitle><jtitle>Evolution</jtitle><addtitle>Evolution</addtitle><date>1999-10</date><risdate>1999</risdate><volume>53</volume><issue>5</issue><spage>1611</spage><epage>1616</epage><pages>1611-1616</pages><issn>0014-3820</issn><eissn>1558-5646</eissn><abstract>Reproductive isolation between two taxa may be due to endogenous selection, which is generated by incompatibilities between the respective genomes, to exogenous selection, which is generated by differential adaptations to alternative environments, or to both. The continuing debate over the relative importance of either mode of selection has highlighted the need for unambiguous data on the fitness of hybrid genotypes. The hybrid zone between the fire-bellied toad (Bombina bombina) and the yellow-bellied toad (B. variegata) in central Europe involves adaptation to different environments, but evidence of hybrid dysfunction is equivocal. In this study, we followed the development under laboratory conditions of naturally laid eggs collected from a transect across the Bombina hybrid zone in Croatia. Fitness was significantly reduced in hybrid populations: Egg batches from the center of the hybrid zone showed significantly higher embryonic and larval mortality and higher frequencies of morphological abnormalities relative to either parental type. Overall mortality from day of egg collection to three weeks after hatching reached 20% in central hybrid populations, compared to 2% in pure populations. There was no significant difference in fitness between two parental types. Within hybrid populations, there was considerable variation in fitness, with some genotypes showing no evidence of reduced viability. We discuss the implications of these findings for our understanding of barriers to gene flow between species.</abstract><cop>United States</cop><pub>Society for the Study of Evolution</pub><pmid>28565554</pmid><doi>10.1111/j.1558-5646.1999.tb05425.x</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0014-3820
ispartof Evolution, 1999-10, Vol.53 (5), p.1611-1616
issn 0014-3820
1558-5646
language eng
recordid cdi_proquest_miscellaneous_1904904135
source JSTOR Archival Journals and Primary Sources Collection
subjects Amphibia
Animal reproduction
Biology
Bombina bombina
Bombina variegata
Brief Communications
Croatia
Eggs
Embryonic mortality
Evolution
Hatching
hybrid zone
Hybridity
Larvae
Mortality
natural selection
reproductive isolation
Reptiles & amphibians
Speciation
Taxa
Toads
title Hybrid Dysfunction in Fire-Bellied Toads (Bombina)
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-01T20%3A45%3A54IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstor_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Hybrid%20Dysfunction%20in%20Fire-Bellied%20Toads%20(Bombina)&rft.jtitle=Evolution&rft.au=Loeske%20E.%20B.%20Kruuk&rft.date=1999-10&rft.volume=53&rft.issue=5&rft.spage=1611&rft.epage=1616&rft.pages=1611-1616&rft.issn=0014-3820&rft.eissn=1558-5646&rft_id=info:doi/10.1111/j.1558-5646.1999.tb05425.x&rft_dat=%3Cjstor_proqu%3E2640907%3C/jstor_proqu%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c5135-9aa73b376f76a8e2075ed39681395c726e735454d74a29dee9df8c4352cb730f3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=227042618&rft_id=info:pmid/28565554&rft_jstor_id=2640907&rfr_iscdi=true