@ARTICLE{TreeBASE2Ref2162,
author = {Joshua P. Der and Jeran K. Stratford and John A. Thomson and Paul G. Wolf},
title = {Global chloroplast phylogeny and biogeography of bracken (Pteridium: Dennstaedtiaceae).},
year = {2009},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {American Journal of Botany},
volume = {},
number = {},
pages = {},
abstract = {Bracken ferns (genus Pteridium) represent an ancient species complex with a natural worldwide distribution. Pteridium has historically been treated as comprising a single species, but recent treatments include several species. Phenotypic plasticity, geographically structured morphological variation, and geographically biased sampling have all contributed to taxonomic confusion in the genus. We sampled bracken specimens worldwide and used variable regions of the chloroplast genome to investigate phylogeography and reticulate evolution within the genus. Our results distinguish two major clades within Pteridium, a primarily northern hemisphere Laurasian/African clade which includes all taxa currently assigned to P. aquilinum, and a primarily southern hemisphere Austral/South American clade which includes P. esculentum and P. arachnoideum. All European accessions of P. aquilinum ssp. aquilinum appear in a monophyletic group and are nested within a clade containing the African P. aquilinum taxa (P. a. ssp. capense and P. a. ssp. centrali-africanum). Our results allow us to hypothesize the maternal progenitors of two allotetraploid bracken species, P. caudatum and P. semihastatum. We also discuss the biogeography of bracken in the context of the chloroplast phylogeny. Our study is one of the first to take a worldwide perspective in addressing variation in a broadly distributed species complex.}
}
Citation for Study 2225
Citation title:
"Global chloroplast phylogeny and biogeography of bracken (Pteridium: Dennstaedtiaceae).".
This study was previously identified under the legacy study ID S2235
(Status: Published).
Citation
Der J., Stratford J., Thomson J., & Wolf P. 2009. Global chloroplast phylogeny and biogeography of bracken (Pteridium: Dennstaedtiaceae). American Journal of Botany, null.
Authors
-
Der J.
-
Stratford J.
-
Thomson J.
-
Wolf P.
Abstract
Bracken ferns (genus Pteridium) represent an ancient species complex with a natural worldwide distribution. Pteridium has historically been treated as comprising a single species, but recent treatments include several species. Phenotypic plasticity, geographically structured morphological variation, and geographically biased sampling have all contributed to taxonomic confusion in the genus. We sampled bracken specimens worldwide and used variable regions of the chloroplast genome to investigate phylogeography and reticulate evolution within the genus. Our results distinguish two major clades within Pteridium, a primarily northern hemisphere Laurasian/African clade which includes all taxa currently assigned to P. aquilinum, and a primarily southern hemisphere Austral/South American clade which includes P. esculentum and P. arachnoideum. All European accessions of P. aquilinum ssp. aquilinum appear in a monophyletic group and are nested within a clade containing the African P. aquilinum taxa (P. a. ssp. capense and P. a. ssp. centrali-africanum). Our results allow us to hypothesize the maternal progenitors of two allotetraploid bracken species, P. caudatum and P. semihastatum. We also discuss the biogeography of bracken in the context of the chloroplast phylogeny. Our study is one of the first to take a worldwide perspective in addressing variation in a broadly distributed species complex.
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S2225
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref2162,
author = {Joshua P. Der and Jeran K. Stratford and John A. Thomson and Paul G. Wolf},
title = {Global chloroplast phylogeny and biogeography of bracken (Pteridium: Dennstaedtiaceae).},
year = {2009},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {American Journal of Botany},
volume = {},
number = {},
pages = {},
abstract = {Bracken ferns (genus Pteridium) represent an ancient species complex with a natural worldwide distribution. Pteridium has historically been treated as comprising a single species, but recent treatments include several species. Phenotypic plasticity, geographically structured morphological variation, and geographically biased sampling have all contributed to taxonomic confusion in the genus. We sampled bracken specimens worldwide and used variable regions of the chloroplast genome to investigate phylogeography and reticulate evolution within the genus. Our results distinguish two major clades within Pteridium, a primarily northern hemisphere Laurasian/African clade which includes all taxa currently assigned to P. aquilinum, and a primarily southern hemisphere Austral/South American clade which includes P. esculentum and P. arachnoideum. All European accessions of P. aquilinum ssp. aquilinum appear in a monophyletic group and are nested within a clade containing the African P. aquilinum taxa (P. a. ssp. capense and P. a. ssp. centrali-africanum). Our results allow us to hypothesize the maternal progenitors of two allotetraploid bracken species, P. caudatum and P. semihastatum. We also discuss the biogeography of bracken in the context of the chloroplast phylogeny. Our study is one of the first to take a worldwide perspective in addressing variation in a broadly distributed species complex.}
}
- Show RIS reference
TY - JOUR
ID - 2162
AU - Der,Joshua P.
AU - Stratford,Jeran K.
AU - Thomson,John A.
AU - Wolf,Paul G.
T1 - Global chloroplast phylogeny and biogeography of bracken (Pteridium: Dennstaedtiaceae).
PY - 2009
KW -
UR -
N2 - Bracken ferns (genus Pteridium) represent an ancient species complex with a natural worldwide distribution. Pteridium has historically been treated as comprising a single species, but recent treatments include several species. Phenotypic plasticity, geographically structured morphological variation, and geographically biased sampling have all contributed to taxonomic confusion in the genus. We sampled bracken specimens worldwide and used variable regions of the chloroplast genome to investigate phylogeography and reticulate evolution within the genus. Our results distinguish two major clades within Pteridium, a primarily northern hemisphere Laurasian/African clade which includes all taxa currently assigned to P. aquilinum, and a primarily southern hemisphere Austral/South American clade which includes P. esculentum and P. arachnoideum. All European accessions of P. aquilinum ssp. aquilinum appear in a monophyletic group and are nested within a clade containing the African P. aquilinum taxa (P. a. ssp. capense and P. a. ssp. centrali-africanum). Our results allow us to hypothesize the maternal progenitors of two allotetraploid bracken species, P. caudatum and P. semihastatum. We also discuss the biogeography of bracken in the context of the chloroplast phylogeny. Our study is one of the first to take a worldwide perspective in addressing variation in a broadly distributed species complex.
L3 -
JF - American Journal of Botany
VL -
IS -
ER -