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 |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
WILEY
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/2434/923162 https://doi.org/10.3732/ajb.1100396 |
id |
ftunivmilanoair:oai:air.unimi.it:2434/923162 |
---|---|
record_format |
openpolar |
spelling |
ftunivmilanoair:oai:air.unimi.it:2434/923162 2024-02-11T09:57:22+01:00 Tracing the origin of Gulf Coast Phragmites (Poaceae): A story of long-distance dispersal and hybridization Lambertini C. Mendelssohn I. A. Gustafsson M. H. G. Olesen B. Riis T. Sorrell B. K. Brix H. C. Lambertini I.A. Mendelssohn M.H.G. Gustafsson B. Olesen T. Rii B.K. Sorrell H. Brix 2012 http://hdl.handle.net/2434/923162 https://doi.org/10.3732/ajb.1100396 eng eng WILEY 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/2434/923162 doi:10.3732/ajb.1100396 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84858591086 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 Settore BIO/02 - Botanica Sistematica info:eu-repo/semantics/article 2012 ftunivmilanoair https://doi.org/10.3732/ajb.1100396 2024-01-23T23:44:05Z • 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 The University of Milan: Archivio Istituzionale della Ricerca (AIR) American Journal of Botany 99 3 538 551 |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
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 Settore BIO/02 - Botanica Sistematica |
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 Settore BIO/02 - Botanica Sistematica Lambertini C. Mendelssohn I. A. Gustafsson M. H. G. Olesen B. Riis T. Sorrell B. K. Brix H. 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 Settore BIO/02 - Botanica Sistematica |
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 |
C. Lambertini I.A. Mendelssohn M.H.G. Gustafsson B. Olesen T. Rii B.K. Sorrell H. Brix |
format |
Article in Journal/Newspaper |
author |
Lambertini C. Mendelssohn I. A. Gustafsson M. H. G. Olesen B. Riis T. Sorrell B. K. Brix H. |
author_facet |
Lambertini C. Mendelssohn I. A. Gustafsson M. H. G. Olesen B. Riis T. Sorrell B. K. Brix H. |
author_sort |
Lambertini C. |
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://hdl.handle.net/2434/923162 https://doi.org/10.3732/ajb.1100396 |
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/2434/923162 doi:10.3732/ajb.1100396 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84858591086 |
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_ |
1790609664569769984 |