@ARTICLE{TreeBASE2Ref29625,
author = {Steven Dodsworth},
title = {Extensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae) },
year = {2020},
keywords = {diversification ? genome skimming ? incomplete lineage sorting ? lag phase ? phylogenetics ? polyploidy ? plastome ? ribosomal DNA},
doi = {},
url = {http://},
pmid = {},
journal = {Botanical Journal of the Linnean Society},
volume = {},
number = {},
pages = {},
abstract = {Nicotiana section Suaveolentes is the largest section within the genus Nicotiana and represents a monophyletic group of allotetraploid species. Most of the species are endemic to Australia, but three species occur on islands in the South Pacific as far east as French Polynesia and one species is native to Namibia. Here we present phylogenetic results based on genome skimming, with near-complete taxon sampling and population-level sampling for several species. These represent the first phylogenetic results for the section that include most recognised taxa, using wild-sourced material wherever possible. Despite known chromosome number and genome size changes in the section, there is little divergence in the ribosomal DNA operon (26S, 18.S and 5.8S plus associated spacers) and plastid genomes, with little to no taxonomic signal in plastome phylogenetic results and clear plastid-nuclear discordance. These results contrast with strong morphological differentiation (both floral and vegetative) between most of the core Australian taxa and obvious differences in ecological preferences. Together these initial results portray Nicotiana section Suaveolentes as experiencing recent and ongoing radiation in the arid zone of Australia. }
}
Citation for Study 24466
Citation title:
"Extensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae) ".
Study name:
"Extensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae) ".
This study is part of submission 24466
(Status: Published).
Citation
Dodsworth S. 2020. Extensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae). Botanical Journal of the Linnean Society, .
Authors
Abstract
Nicotiana section Suaveolentes is the largest section within the genus Nicotiana and represents a monophyletic group of allotetraploid species. Most of the species are endemic to Australia, but three species occur on islands in the South Pacific as far east as French Polynesia and one species is native to Namibia. Here we present phylogenetic results based on genome skimming, with near-complete taxon sampling and population-level sampling for several species. These represent the first phylogenetic results for the section that include most recognised taxa, using wild-sourced material wherever possible. Despite known chromosome number and genome size changes in the section, there is little divergence in the ribosomal DNA operon (26S, 18.S and 5.8S plus associated spacers) and plastid genomes, with little to no taxonomic signal in plastome phylogenetic results and clear plastid-nuclear discordance. These results contrast with strong morphological differentiation (both floral and vegetative) between most of the core Australian taxa and obvious differences in ecological preferences. Together these initial results portray Nicotiana section Suaveolentes as experiencing recent and ongoing radiation in the arid zone of Australia.
Keywords
diversification ? genome skimming ? incomplete lineage sorting ? lag phase ? phylogenetics ? polyploidy ? plastome ? ribosomal DNA
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S24466
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref29625,
author = {Steven Dodsworth},
title = {Extensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae) },
year = {2020},
keywords = {diversification ? genome skimming ? incomplete lineage sorting ? lag phase ? phylogenetics ? polyploidy ? plastome ? ribosomal DNA},
doi = {},
url = {http://},
pmid = {},
journal = {Botanical Journal of the Linnean Society},
volume = {},
number = {},
pages = {},
abstract = {Nicotiana section Suaveolentes is the largest section within the genus Nicotiana and represents a monophyletic group of allotetraploid species. Most of the species are endemic to Australia, but three species occur on islands in the South Pacific as far east as French Polynesia and one species is native to Namibia. Here we present phylogenetic results based on genome skimming, with near-complete taxon sampling and population-level sampling for several species. These represent the first phylogenetic results for the section that include most recognised taxa, using wild-sourced material wherever possible. Despite known chromosome number and genome size changes in the section, there is little divergence in the ribosomal DNA operon (26S, 18.S and 5.8S plus associated spacers) and plastid genomes, with little to no taxonomic signal in plastome phylogenetic results and clear plastid-nuclear discordance. These results contrast with strong morphological differentiation (both floral and vegetative) between most of the core Australian taxa and obvious differences in ecological preferences. Together these initial results portray Nicotiana section Suaveolentes as experiencing recent and ongoing radiation in the arid zone of Australia. }
}
- Show RIS reference
TY - JOUR
ID - 29625
AU - Dodsworth,Steven
T1 - Extensive plastid-nuclear discordance in a recent radiation of Nicotiana section Suaveolentes (Solanaceae)
PY - 2020
KW - diversification ? genome skimming ? incomplete lineage sorting ? lag phase ? phylogenetics ? polyploidy ? plastome ? ribosomal DNA
UR - http://dx.doi.org/
N2 - Nicotiana section Suaveolentes is the largest section within the genus Nicotiana and represents a monophyletic group of allotetraploid species. Most of the species are endemic to Australia, but three species occur on islands in the South Pacific as far east as French Polynesia and one species is native to Namibia. Here we present phylogenetic results based on genome skimming, with near-complete taxon sampling and population-level sampling for several species. These represent the first phylogenetic results for the section that include most recognised taxa, using wild-sourced material wherever possible. Despite known chromosome number and genome size changes in the section, there is little divergence in the ribosomal DNA operon (26S, 18.S and 5.8S plus associated spacers) and plastid genomes, with little to no taxonomic signal in plastome phylogenetic results and clear plastid-nuclear discordance. These results contrast with strong morphological differentiation (both floral and vegetative) between most of the core Australian taxa and obvious differences in ecological preferences. Together these initial results portray Nicotiana section Suaveolentes as experiencing recent and ongoing radiation in the arid zone of Australia.
L3 -
JF - Botanical Journal of the Linnean Society
VL -
IS -
ER -
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