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://hdl.handle.net/11585/566349 https://doi.org/10.3732/ajb.1100396 http://www.amjbot.org/content/99/3/538.full.pdf+html |
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ftunibolognairis:oai:cris.unibo.it:11585/566349 2024-09-15T17:41:09+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 Lambertini, Carla Mendelssohn, Irving A. Gustafsson, MATS H. G. Olesen, Birgit Riis, Tenna Sorrell, Brian K. Brix, Hans 2012 ELETTRONICO http://hdl.handle.net/11585/566349 https://doi.org/10.3732/ajb.1100396 http://www.amjbot.org/content/99/3/538.full.pdf+html eng eng info:eu-repo/semantics/altIdentifier/pmid/22334449 info:eu-repo/semantics/altIdentifier/wos/WOS:000301254600024 volume:99 issue:3 firstpage:538 lastpage:551 numberofpages:14 journal:AMERICAN JOURNAL OF BOTANY http://hdl.handle.net/11585/566349 doi:10.3732/ajb.1100396 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84858591086 http://www.amjbot.org/content/99/3/538.full.pdf+html Gene flow Gulf coast Hybridization Introgression Invasion Long-distance dispersal Phragmites australi Phragmites mauritianu Amplified Fragment Length Polymorphism Analysi Biological Evolution Demography Genetic Marker Genetic Variation Genetic Poaceae Species Specificity Plant Science Ecology Evolution Behavior and Systematic Genetics info:eu-repo/semantics/article 2012 ftunibolognairis https://doi.org/10.3732/ajb.1100396 2024-06-24T14:22:20Z • 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. © 2012 Botanical Society of America. Article in Journal/Newspaper Antarc* Antarctica IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) American Journal of Botany 99 3 538 551 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Gene flow Gulf coast Hybridization Introgression Invasion Long-distance dispersal Phragmites australi Phragmites mauritianu Amplified Fragment Length Polymorphism Analysi Biological Evolution Demography Genetic Marker Genetic Variation Genetic Poaceae Species Specificity Plant Science Ecology Evolution Behavior and Systematic Genetics |
spellingShingle |
Gene flow Gulf coast Hybridization Introgression Invasion Long-distance dispersal Phragmites australi Phragmites mauritianu Amplified Fragment Length Polymorphism Analysi Biological Evolution Demography Genetic Marker Genetic Variation Genetic Poaceae Species Specificity Plant Science Ecology Evolution Behavior and Systematic Genetics 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 |
topic_facet |
Gene flow Gulf coast Hybridization Introgression Invasion Long-distance dispersal Phragmites australi Phragmites mauritianu Amplified Fragment Length Polymorphism Analysi Biological Evolution Demography Genetic Marker Genetic Variation Genetic Poaceae Species Specificity Plant Science Ecology Evolution Behavior and Systematic Genetics |
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. © 2012 Botanical Society of America. |
author2 |
Lambertini, Carla Mendelssohn, Irving A. Gustafsson, MATS H. G. Olesen, Birgit Riis, Tenna Sorrell, Brian K. Brix, Hans |
format |
Article in Journal/Newspaper |
author |
LAMBERTINI, CARLA Mendelssohn, Irving A. Gustafsson, MATS H. G. Olesen, Birgit Riis, Tenna Sorrell, Brian K. Brix, Hans |
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 |
publishDate |
2012 |
url |
http://hdl.handle.net/11585/566349 https://doi.org/10.3732/ajb.1100396 http://www.amjbot.org/content/99/3/538.full.pdf+html |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/22334449 info:eu-repo/semantics/altIdentifier/wos/WOS:000301254600024 volume:99 issue:3 firstpage:538 lastpage:551 numberofpages:14 journal:AMERICAN JOURNAL OF BOTANY http://hdl.handle.net/11585/566349 doi:10.3732/ajb.1100396 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84858591086 http://www.amjbot.org/content/99/3/538.full.pdf+html |
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 |
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1810487259491729408 |