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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ftdoajarticles:oai:doaj.org/article:81039bd3a6524313b400b25a7a4ad240 2023-05-15T16:50:21+02:00 Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? G. Hoarau J. A. Coyer M. C. W. G. Giesbers A. Jueterbock J. L. Olsen 2015-01-01T00:00:00Z https://doi.org/10.1098/rsos.140538 https://doaj.org/article/81039bd3a6524313b400b25a7a4ad240 EN eng The Royal Society https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.140538 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.140538 https://doaj.org/article/81039bd3a6524313b400b25a7a4ad240 Royal Society Open Science, Vol 2, Iss 2 (2015) introgression hybridization hybrid zones macroalgae speciation Science Q article 2015 ftdoajarticles https://doi.org/10.1098/rsos.140538 2023-01-08T01:24:56Z 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. Article in Journal/Newspaper Iceland Northern Norway Directory of Open Access Journals: DOAJ Articles Norway Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Royal Society Open Science 2 2 140538 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
introgression hybridization hybrid zones macroalgae speciation Science Q |
spellingShingle |
introgression hybridization hybrid zones macroalgae speciation Science Q G. Hoarau J. A. Coyer M. C. W. G. Giesbers A. Jueterbock J. L. Olsen Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? |
topic_facet |
introgression hybridization hybrid zones macroalgae speciation Science Q |
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 |
Article in Journal/Newspaper |
author |
G. Hoarau J. A. Coyer M. C. W. G. Giesbers A. Jueterbock J. L. Olsen |
author_facet |
G. Hoarau J. A. Coyer M. C. W. G. Giesbers A. Jueterbock J. L. Olsen |
author_sort |
G. Hoarau |
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 |
publishDate |
2015 |
url |
https://doi.org/10.1098/rsos.140538 https://doaj.org/article/81039bd3a6524313b400b25a7a4ad240 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Norway Kattegat |
geographic_facet |
Norway Kattegat |
genre |
Iceland Northern Norway |
genre_facet |
Iceland Northern Norway |
op_source |
Royal Society Open Science, Vol 2, Iss 2 (2015) |
op_relation |
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.140538 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.140538 https://doaj.org/article/81039bd3a6524313b400b25a7a4ad240 |
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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1766040507093352448 |