Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America
Alectoria is a genus of fruticose lichen characterised by the presence of usnic acid and conspicuous raised pseudocyphellae. This genus is particularly diverse and abundant in montane, boreal, and Arctic regions of North America. Because intermediate forms have been reported for several species of A...
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NRC Research Press (a division of Canadian Science Publishing)
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ftunivtoronto:oai:localhost:1807/71259 2023-05-15T15:13:48+02:00 Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America McMullin, Richard Troy Lendemer, James C. Braid, Heather E. Newmaster, Steven G. 2015-11-27 http://hdl.handle.net/1807/71259 http://www.nrcresearchpress.com/doi/abs/10.1139/cjb-2015-0186 unknown NRC Research Press (a division of Canadian Science Publishing) 1916-2790 http://hdl.handle.net/1807/71259 http://www.nrcresearchpress.com/doi/abs/10.1139/cjb-2015-0186 Article 2015 ftunivtoronto 2020-06-17T11:57:57Z Alectoria is a genus of fruticose lichen characterised by the presence of usnic acid and conspicuous raised pseudocyphellae. This genus is particularly diverse and abundant in montane, boreal, and Arctic regions of North America. Because intermediate forms have been reported for several species of Alectoria on the continent it has been suggested that these species were initially delimited based on the extremes of morphological gradients. Here, we use the results of molecular phylogenetic analyses of two nuclear genes, ITS and Mcm7, with 48 representatives of 9 taxa to examine the delineation of five taxa that have been previously shown to be related to, or confused with, A. sarmentosa: A. fallacina, A. imshaugii, A. sarmentosa var. sorediosa, A. sarmentosa ssp. vexillifera, and A. vancouverensis. Alectoria fallacina was found to be well-supported and distantly related to A. sarmentosa. Conversely, the other four taxa were recovered as a single monophyletic group with little internal structure which did not support the presently defined morphological species. A provisional taxonomic treatment is proposed pending more detailed study at the population level. Alectoria sarmentosa var. sorediosa is recognized at the species level, which necessitates the new combination: A. sorediosa. An updated key to the North American species of Alectoria is also provided. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. Article in Journal/Newspaper Arctic University of Toronto: Research Repository T-Space Alectoria ENVELOPE(-58.640,-58.640,-63.977,-63.977) Arctic |
institution |
Open Polar |
collection |
University of Toronto: Research Repository T-Space |
op_collection_id |
ftunivtoronto |
language |
unknown |
description |
Alectoria is a genus of fruticose lichen characterised by the presence of usnic acid and conspicuous raised pseudocyphellae. This genus is particularly diverse and abundant in montane, boreal, and Arctic regions of North America. Because intermediate forms have been reported for several species of Alectoria on the continent it has been suggested that these species were initially delimited based on the extremes of morphological gradients. Here, we use the results of molecular phylogenetic analyses of two nuclear genes, ITS and Mcm7, with 48 representatives of 9 taxa to examine the delineation of five taxa that have been previously shown to be related to, or confused with, A. sarmentosa: A. fallacina, A. imshaugii, A. sarmentosa var. sorediosa, A. sarmentosa ssp. vexillifera, and A. vancouverensis. Alectoria fallacina was found to be well-supported and distantly related to A. sarmentosa. Conversely, the other four taxa were recovered as a single monophyletic group with little internal structure which did not support the presently defined morphological species. A provisional taxonomic treatment is proposed pending more detailed study at the population level. Alectoria sarmentosa var. sorediosa is recognized at the species level, which necessitates the new combination: A. sorediosa. An updated key to the North American species of Alectoria is also provided. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. |
format |
Article in Journal/Newspaper |
author |
McMullin, Richard Troy Lendemer, James C. Braid, Heather E. Newmaster, Steven G. |
spellingShingle |
McMullin, Richard Troy Lendemer, James C. Braid, Heather E. Newmaster, Steven G. Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America |
author_facet |
McMullin, Richard Troy Lendemer, James C. Braid, Heather E. Newmaster, Steven G. |
author_sort |
McMullin, Richard Troy |
title |
Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America |
title_short |
Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America |
title_full |
Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America |
title_fullStr |
Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America |
title_full_unstemmed |
Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America |
title_sort |
molecular insights into the lichen genus alectoria (parmeliaceae) in north america |
publisher |
NRC Research Press (a division of Canadian Science Publishing) |
publishDate |
2015 |
url |
http://hdl.handle.net/1807/71259 http://www.nrcresearchpress.com/doi/abs/10.1139/cjb-2015-0186 |
long_lat |
ENVELOPE(-58.640,-58.640,-63.977,-63.977) |
geographic |
Alectoria Arctic |
geographic_facet |
Alectoria Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
1916-2790 http://hdl.handle.net/1807/71259 http://www.nrcresearchpress.com/doi/abs/10.1139/cjb-2015-0186 |
_version_ |
1766344329225306112 |