Naturally occurring hybrids of coral reef butterflyfishes have similar fitness compared to parental species

Hybridisation can produce evolutionary novelty by increasing fitness and adaptive capacity. Heterosis, or hybrid vigour, has been documented in many plant and animal taxa, and is a notable consequence of hybridisation that has been exploited for decades in agriculture and aquaculture. On the contrar...

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Published in:PloS one 2017-03, Vol.12 (3), p.e0173212-e0173212
Main Authors: Montanari, Stefano R, Hobbs, Jean-Paul A, Pratchett, Morgan S, Bay, Line K, van Herwerden, Lynne
Format: Article
Language:English
Subjects:
Adaptation
Agriculture
Animal reproduction
Animals
Aquaculture
Asymptotic methods
Biogeography
Biological Evolution
Biology
Biology and Life Sciences
Body size
Butterfly fishes
Chaetodon
Chaetodontidae
Conservation
Coral Reefs
Earth Sciences
Ecosystem biology
Ecosystems
Endangered & extinct species
Environmental conditions
Evolutionary adaptation
Extinction
Fish
Fisheries
Fishing
Fitness
Genetic aspects
Genomics
Growth rate
Heterosis
Hybrid Vigor - genetics
Hybridization
Hybridization, Genetic
Hybrids
Lipids - isolation & purification
Liver
Liver - chemistry
Medicine and Health Sciences
Perciformes - genetics
Perciformes - growth & development
Physiological aspects
Reproductive effort
Reproductive fitness
Science
Species
Taxa
Viability
Wildlife conservation
Zoology
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cited_by cdi_FETCH-LOGICAL-c725t-7c1af73ad39780e5766e290588c6a00969ac97b58c85ccd77e9da437f91f0aad3
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creator Montanari, Stefano R
Hobbs, Jean-Paul A
Pratchett, Morgan S
Bay, Line K
van Herwerden, Lynne
description Hybridisation can produce evolutionary novelty by increasing fitness and adaptive capacity. Heterosis, or hybrid vigour, has been documented in many plant and animal taxa, and is a notable consequence of hybridisation that has been exploited for decades in agriculture and aquaculture. On the contrary, loss of fitness in naturally occurring hybrid taxa has been observed in many cases. This can have negative consequences for the parental species involved (wasted reproductive effort), and has raised concerns for species conservation. This study evaluates the relative fitness of previously documented butterflyfish hybrids of the genus Chaetodon from the Indo-Pacific suture zone at Christmas Island. Histological examination confirmed the reproductive viability of Chaetodon hybrids. Examination of liver lipid content showed that hybrid body condition was not significantly different from parent species body condition. Lastly, size at age data revealed no difference in growth rates and asymptotic length between hybrids and parent species. Based on the traits measured in this study, naturally occurring hybrids of Chaetodon butterflyfishes have similar fitness to their parental species, and are unlikely to supplant parental species under current environmental conditions at the suture zone. However, given sufficient fitness and ongoing genetic exchange between the respective parental species, hybrids are likely to persist within the suture zone.
doi_str_mv 10.1371/journal.pone.0173212
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Heterosis, or hybrid vigour, has been documented in many plant and animal taxa, and is a notable consequence of hybridisation that has been exploited for decades in agriculture and aquaculture. On the contrary, loss of fitness in naturally occurring hybrid taxa has been observed in many cases. This can have negative consequences for the parental species involved (wasted reproductive effort), and has raised concerns for species conservation. This study evaluates the relative fitness of previously documented butterflyfish hybrids of the genus Chaetodon from the Indo-Pacific suture zone at Christmas Island. Histological examination confirmed the reproductive viability of Chaetodon hybrids. Examination of liver lipid content showed that hybrid body condition was not significantly different from parent species body condition. Lastly, size at age data revealed no difference in growth rates and asymptotic length between hybrids and parent species. Based on the traits measured in this study, naturally occurring hybrids of Chaetodon butterflyfishes have similar fitness to their parental species, and are unlikely to supplant parental species under current environmental conditions at the suture zone. 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1932-6203
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subjects Adaptation
Agriculture
Animal reproduction
Animals
Aquaculture
Asymptotic methods
Biogeography
Biological Evolution
Biology
Biology and Life Sciences
Body size
Butterfly fishes
Chaetodon
Chaetodontidae
Conservation
Coral Reefs
Earth Sciences
Ecosystem biology
Ecosystems
Endangered & extinct species
Environmental conditions
Evolutionary adaptation
Extinction
Fish
Fisheries
Fishing
Fitness
Genetic aspects
Genomics
Growth rate
Heterosis
Hybrid Vigor - genetics
Hybridization
Hybridization, Genetic
Hybrids
Lipids - isolation & purification
Liver
Liver - chemistry
Medicine and Health Sciences
Perciformes - genetics
Perciformes - growth & development
Physiological aspects
Reproductive effort
Reproductive fitness
Science
Species
Taxa
Viability
Wildlife conservation
Zoology
title Naturally occurring hybrids of coral reef butterflyfishes have similar fitness compared to parental species
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-20T09%3A14%3A11IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Naturally%20occurring%20hybrids%20of%20coral%20reef%20butterflyfishes%20have%20similar%20fitness%20compared%20to%20parental%20species&rft.jtitle=PloS%20one&rft.au=Montanari,%20Stefano%20R&rft.date=2017-03-03&rft.volume=12&rft.issue=3&rft.spage=e0173212&rft.epage=e0173212&rft.pages=e0173212-e0173212&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0173212&rft_dat=%3Cgale_plos_%3EA483896424%3C/gale_plos_%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c725t-7c1af73ad39780e5766e290588c6a00969ac97b58c85ccd77e9da437f91f0aad3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1874149977&rft_id=info:pmid/28257492&rft_galeid=A483896424&rfr_iscdi=true