The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America
Saxicolous, lecideoid lichenized fungi have a cosmopolitan distribution but, being mostly cold adapted, are especially abundant in polar and high-mountain regions. To date, little is known of their origin or the extent of their trans-equatorial dispersal. Several mycobiont genera and species are tho...
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Language: | English |
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Cambridge University Press
2020
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Online Access: | https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-19192 https://doi.org/10.1017/S0024282920000225 https://eplus.uni-salzburg.at/doi/10.1017/S0024282920000225 |
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ftunivsalzburg:oai:eplus.uni-salzburg.at:5468352 2023-05-15T14:13:53+02:00 The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America Ruprecht, Ulrike Fernández-Mendoza, Fernando Türk, Roman Fryday, Alan M. 42.59 PLUS:NW:BIOW 2020 text/html https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-19192 https://doi.org/10.1017/S0024282920000225 https://eplus.uni-salzburg.at/doi/10.1017/S0024282920000225 eng eng Cambridge University Press vignette : https://eplus.uni-salzburg.at/titlepage/urn/urn:nbn:at:at-ubs:3-19192/128 vignette : https://eplus.uni-salzburg.at/titlepage/doi/10.1017/S0024282920000225/128 1096-1135 urn:nbn:at:at-ubs:3-19192 https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-19192 doi:10.1017/S0024282920000225 https://eplus.uni-salzburg.at/doi/10.1017/S0024282920000225 local:99145668906203331 system:AC16050148 Open Access glacial refugia global distribution pioneer vegetation on rock subantarctic subregion Text Article 2020 ftunivsalzburg https://doi.org/10.1017/S0024282920000225 2023-04-09T04:52:58Z Saxicolous, lecideoid lichenized fungi have a cosmopolitan distribution but, being mostly cold adapted, are especially abundant in polar and high-mountain regions. To date, little is known of their origin or the extent of their trans-equatorial dispersal. Several mycobiont genera and species are thought to be restricted to either the Northern or the Southern Hemisphere, whereas others are thought to be widely distributed and occur in both hemispheres. However, these assumptions often rely on morphological analyses and lack supporting molecular genetic data. Also unknown is the extent of regional differentiation in the southern polar regions. An extensive set of lecideoid lichens (185 samples) was collected along a latitudinal gradient at the southern end of South America. Subantarctic climate conditions were maintained by increasing the elevation of the collecting sites with decreasing latitude. The investigated specimens were placed in a global context by including Antarctic and cosmopolitan sequences from other studies. For each symbiont three markers were used to identify intraspecific variation (mycobiont: ITS, mtSSU, RPB1; photobiont: ITS, psbJ-L, COX2). For the mycobiont, the saxicolous genera Lecidea, Porpidia, Poeltidea and Lecidella were phylogenetically re-evaluated, along with their photobionts Asterochloris and Trebouxia. For several globally distributed species groups, the results show geographically highly differentiated subclades, classified as operational taxonomical units (OTUs), which were assigned to the different regions of southern South America (sSA). Furthermore, several small endemic and well-supported clades apparently restricted to sSA were detected at the species level for both symbionts. Article in Journal/Newspaper Antarc* Antarctic ePLUS - Open Access Publikationsserver der Universität Salzburg Antarctic The Lichenologist 52 4 287 303 |
institution |
Open Polar |
collection |
ePLUS - Open Access Publikationsserver der Universität Salzburg |
op_collection_id |
ftunivsalzburg |
language |
English |
topic |
glacial refugia global distribution pioneer vegetation on rock subantarctic subregion |
spellingShingle |
glacial refugia global distribution pioneer vegetation on rock subantarctic subregion Ruprecht, Ulrike Fernández-Mendoza, Fernando Türk, Roman Fryday, Alan M. The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America |
topic_facet |
glacial refugia global distribution pioneer vegetation on rock subantarctic subregion |
description |
Saxicolous, lecideoid lichenized fungi have a cosmopolitan distribution but, being mostly cold adapted, are especially abundant in polar and high-mountain regions. To date, little is known of their origin or the extent of their trans-equatorial dispersal. Several mycobiont genera and species are thought to be restricted to either the Northern or the Southern Hemisphere, whereas others are thought to be widely distributed and occur in both hemispheres. However, these assumptions often rely on morphological analyses and lack supporting molecular genetic data. Also unknown is the extent of regional differentiation in the southern polar regions. An extensive set of lecideoid lichens (185 samples) was collected along a latitudinal gradient at the southern end of South America. Subantarctic climate conditions were maintained by increasing the elevation of the collecting sites with decreasing latitude. The investigated specimens were placed in a global context by including Antarctic and cosmopolitan sequences from other studies. For each symbiont three markers were used to identify intraspecific variation (mycobiont: ITS, mtSSU, RPB1; photobiont: ITS, psbJ-L, COX2). For the mycobiont, the saxicolous genera Lecidea, Porpidia, Poeltidea and Lecidella were phylogenetically re-evaluated, along with their photobionts Asterochloris and Trebouxia. For several globally distributed species groups, the results show geographically highly differentiated subclades, classified as operational taxonomical units (OTUs), which were assigned to the different regions of southern South America (sSA). Furthermore, several small endemic and well-supported clades apparently restricted to sSA were detected at the species level for both symbionts. |
format |
Article in Journal/Newspaper |
author |
Ruprecht, Ulrike Fernández-Mendoza, Fernando Türk, Roman Fryday, Alan M. |
author_facet |
Ruprecht, Ulrike Fernández-Mendoza, Fernando Türk, Roman Fryday, Alan M. |
author_sort |
Ruprecht, Ulrike |
title |
The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America |
title_short |
The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America |
title_full |
The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America |
title_fullStr |
The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America |
title_full_unstemmed |
The Lichenologist / High levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern South America |
title_sort |
lichenologist / high levels of endemism and local differentiation in the fungal and algal symbionts of saxicolous lecideoid lichens along a latitudinal gradient in southern south america |
publisher |
Cambridge University Press |
publishDate |
2020 |
url |
https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-19192 https://doi.org/10.1017/S0024282920000225 https://eplus.uni-salzburg.at/doi/10.1017/S0024282920000225 |
op_coverage |
42.59 PLUS:NW:BIOW |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
vignette : https://eplus.uni-salzburg.at/titlepage/urn/urn:nbn:at:at-ubs:3-19192/128 vignette : https://eplus.uni-salzburg.at/titlepage/doi/10.1017/S0024282920000225/128 1096-1135 urn:nbn:at:at-ubs:3-19192 https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-19192 doi:10.1017/S0024282920000225 https://eplus.uni-salzburg.at/doi/10.1017/S0024282920000225 local:99145668906203331 system:AC16050148 |
op_rights |
Open Access |
op_doi |
https://doi.org/10.1017/S0024282920000225 |
container_title |
The Lichenologist |
container_volume |
52 |
container_issue |
4 |
container_start_page |
287 |
op_container_end_page |
303 |
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1766286398816518144 |