Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement?
Hybrid zones provide an ideal natural experiment to study the selective forces driving evolution of reproductive barriers and speciation. If hybrid offspring are less fit than the parental species, pre-zygotic isolating barriers can evolve and strengthen in response to selection against the hybrids...
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ftpubmed:oai:pubmedcentral.nih.gov:4448814 2023-05-15T16:50:20+02:00 Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? Hoarau, G. Coyer, J. A. Giesbers, M. C. W. G. Jueterbock, A. Olsen, J. L. 2015-02-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448814/ https://doi.org/10.1098/rsos.140538 en eng The Royal Society Publishing http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448814/ http://dx.doi.org/10.1098/rsos.140538 © 2015 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Biology (Whole Organism) Text 2015 ftpubmed https://doi.org/10.1098/rsos.140538 2015-06-14T00:05:51Z Hybrid zones provide an ideal natural experiment to study the selective forces driving evolution of reproductive barriers and speciation. If hybrid offspring are less fit than the parental species, pre-zygotic isolating barriers can evolve and strengthen in response to selection against the hybrids (reinforcement). Four contact zones between the intertidal macroalgae Fucus serratus (Fs) and Fucus distichus (Fd), characterized by varying times of sympatry and order of species introduction provide an opportunity to investigate reinforcement. We examined patterns of hybridization and reproductive isolation between Fs and Fd in: (i) northern Norway (consisting of two natural sites, 10 000 years old), (ii) the Kattegat near Denmark (Fd introduced, nineteenth century) and (iii) Iceland (Fs introduced, nineteenth century). Using 10 microsatellites and chloroplast DNA, we showed that hybridization and introgression decreased with increasing duration of sympatry. The two younger contact zones revealed 13 and 24% hybrids and several F1 individuals, in contrast to the older contact zone with 2–3% hybrids and an absence of F1s. Cross-fertilization experiments revealed that the reduction in hybridization in the oldest zone is consistent with increased gametic incompatibility. Text Iceland Northern Norway PubMed Central (PMC) Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Norway Royal Society Open Science 2 2 140538 |
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English |
topic |
Biology (Whole Organism) |
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Biology (Whole Organism) Hoarau, G. Coyer, J. A. Giesbers, M. C. W. G. Jueterbock, A. Olsen, J. L. Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
topic_facet |
Biology (Whole Organism) |
description |
Hybrid zones provide an ideal natural experiment to study the selective forces driving evolution of reproductive barriers and speciation. If hybrid offspring are less fit than the parental species, pre-zygotic isolating barriers can evolve and strengthen in response to selection against the hybrids (reinforcement). Four contact zones between the intertidal macroalgae Fucus serratus (Fs) and Fucus distichus (Fd), characterized by varying times of sympatry and order of species introduction provide an opportunity to investigate reinforcement. We examined patterns of hybridization and reproductive isolation between Fs and Fd in: (i) northern Norway (consisting of two natural sites, 10 000 years old), (ii) the Kattegat near Denmark (Fd introduced, nineteenth century) and (iii) Iceland (Fs introduced, nineteenth century). Using 10 microsatellites and chloroplast DNA, we showed that hybridization and introgression decreased with increasing duration of sympatry. The two younger contact zones revealed 13 and 24% hybrids and several F1 individuals, in contrast to the older contact zone with 2–3% hybrids and an absence of F1s. Cross-fertilization experiments revealed that the reduction in hybridization in the oldest zone is consistent with increased gametic incompatibility. |
format |
Text |
author |
Hoarau, G. Coyer, J. A. Giesbers, M. C. W. G. Jueterbock, A. Olsen, J. L. |
author_facet |
Hoarau, G. Coyer, J. A. Giesbers, M. C. W. G. Jueterbock, A. Olsen, J. L. |
author_sort |
Hoarau, G. |
title |
Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
title_short |
Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
title_full |
Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
title_fullStr |
Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
title_full_unstemmed |
Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
title_sort |
pre-zygotic isolation in the macroalgal genus fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
publisher |
The Royal Society Publishing |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448814/ https://doi.org/10.1098/rsos.140538 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Kattegat Norway |
geographic_facet |
Kattegat Norway |
genre |
Iceland Northern Norway |
genre_facet |
Iceland Northern Norway |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448814/ http://dx.doi.org/10.1098/rsos.140538 |
op_rights |
© 2015 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.140538 |
container_title |
Royal Society Open Science |
container_volume |
2 |
container_issue |
2 |
container_start_page |
140538 |
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1766040490715643904 |