Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization
• Premise of the study: Long‐distance dispersal can affect speciation processes in two opposing ways. Dispersal can promote geographic isolation or it can bring together geographically distant and distantly related genotypes, thus counteracting local differentiation. We used the Gulf Coast of North...
Published in: | American Journal of Botany |
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Online Access: | http://dx.doi.org/10.3732/ajb.1100396 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.1100396 http://onlinelibrary.wiley.com/wol1/doi/10.3732/ajb.1100396/fullpdf |
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crwiley:10.3732/ajb.1100396 2024-06-02T07:57:37+00:00 Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization Lambertini, Carla Mendelssohn, Irving A. Gustafsson, Mats H. G. Olesen, Birgit RIIS, Tenna Sorrell, Brian K. Brix, Hans Danish Council for Independent Research, Natural Sciences 2012 http://dx.doi.org/10.3732/ajb.1100396 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.1100396 http://onlinelibrary.wiley.com/wol1/doi/10.3732/ajb.1100396/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 99, issue 3, page 538-551 ISSN 0002-9122 1537-2197 journal-article 2012 crwiley https://doi.org/10.3732/ajb.1100396 2024-05-06T07:02:49Z • Premise of the study: Long‐distance dispersal can affect speciation processes in two opposing ways. Dispersal can promote geographic isolation or it can bring together geographically distant and distantly related genotypes, thus counteracting local differentiation. We used the Gulf Coast of North America (GC), a “hot spot” of reed diversity and evolutionary dynamics, as a model system to study the diversification processes within the invasive, cosmopolitan, polyploid grass Phragmites . • Methods: Genetic diversity was studied using collections representing all species of the genus and from all continents (except Antarctica). A range of molecular markers, including chloroplast and nuclear sequences, microsatellites, and AFLPs, was analyzed to detect DNA variation from the population to the species level and to infer phylogenetic relationships across continents. • Key results: An interspecific hybrid, Phragmites mauritianus × P. australis, and four P. australis cp‐DNA haplotypes from Africa, Europe, and North America have been dispersed to the GC and interbreed with each other. • Conclusions: Long‐distance dispersal and weak breeding barriers appear to be recurring phenomena, not only in the GC, but worldwide. We present data strongly suggesting that interspecific hybridization and introgression among different Phragmites species take place and appear to have contributed significantly to the diversification processes within the genus. Hence, the application of traditional species concepts within Phragmites might be inappropriate. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library American Journal of Botany 99 3 538 551 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
• Premise of the study: Long‐distance dispersal can affect speciation processes in two opposing ways. Dispersal can promote geographic isolation or it can bring together geographically distant and distantly related genotypes, thus counteracting local differentiation. We used the Gulf Coast of North America (GC), a “hot spot” of reed diversity and evolutionary dynamics, as a model system to study the diversification processes within the invasive, cosmopolitan, polyploid grass Phragmites . • Methods: Genetic diversity was studied using collections representing all species of the genus and from all continents (except Antarctica). A range of molecular markers, including chloroplast and nuclear sequences, microsatellites, and AFLPs, was analyzed to detect DNA variation from the population to the species level and to infer phylogenetic relationships across continents. • Key results: An interspecific hybrid, Phragmites mauritianus × P. australis, and four P. australis cp‐DNA haplotypes from Africa, Europe, and North America have been dispersed to the GC and interbreed with each other. • Conclusions: Long‐distance dispersal and weak breeding barriers appear to be recurring phenomena, not only in the GC, but worldwide. We present data strongly suggesting that interspecific hybridization and introgression among different Phragmites species take place and appear to have contributed significantly to the diversification processes within the genus. Hence, the application of traditional species concepts within Phragmites might be inappropriate. |
author2 |
Danish Council for Independent Research, Natural Sciences |
format |
Article in Journal/Newspaper |
author |
Lambertini, Carla Mendelssohn, Irving A. Gustafsson, Mats H. G. Olesen, Birgit RIIS, Tenna Sorrell, Brian K. Brix, Hans |
spellingShingle |
Lambertini, Carla Mendelssohn, Irving A. Gustafsson, Mats H. G. Olesen, Birgit RIIS, Tenna Sorrell, Brian K. Brix, Hans Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization |
author_facet |
Lambertini, Carla Mendelssohn, Irving A. Gustafsson, Mats H. G. Olesen, Birgit RIIS, Tenna Sorrell, Brian K. Brix, Hans |
author_sort |
Lambertini, Carla |
title |
Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization |
title_short |
Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization |
title_full |
Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization |
title_fullStr |
Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization |
title_full_unstemmed |
Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long‐distance dispersal and hybridization |
title_sort |
tracing the origin of gulf coast phragmites (poaceae): a story of long‐distance dispersal and hybridization |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.3732/ajb.1100396 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.1100396 http://onlinelibrary.wiley.com/wol1/doi/10.3732/ajb.1100396/fullpdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
American Journal of Botany volume 99, issue 3, page 538-551 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.3732/ajb.1100396 |
container_title |
American Journal of Botany |
container_volume |
99 |
container_issue |
3 |
container_start_page |
538 |
op_container_end_page |
551 |
_version_ |
1800740804097998848 |