Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair
Lichens are symbiotic associations consisting of a fungal (mycobiont) and one or more photosynthetic (photobionts) partners and are the dominant component, and most important primary producers, of Antarctic terrestrial ecosystems. The most common lichens in the maritime Antarctic are Usnea antarctic...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.892970 2023-05-15T14:04:56+02:00 Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair Lagostina, Elisa MEDIAN LATITUDE: -61.765230 * MEDIAN LONGITUDE: -57.231938 * SOUTH-BOUND LATITUDE: -62.252900 * WEST-BOUND LONGITUDE: -58.992750 * NORTH-BOUND LATITUDE: -61.216530 * EAST-BOUND LONGITUDE: -55.358780 * DATE/TIME START: 2015-12-18T00:00:00 * DATE/TIME END: 2016-04-08T00:00:00 2018-08-13 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.892970 https://doi.org/10.1594/PANGAEA.892970 en eng PANGAEA Lagostina, Elisa; Dal Grande, Francesco; Ott, Sieglinde; Printzen, Christian (2017): Fungus-specific SSR markers in the Antarctic lichens Usnea antarctica and U. aurantiacoatra (Parmeliaceae, Ascomycota). Applications in Plant Sciences, 5(9), 1700054, https://doi.org/10.3732/apps.1700054 https://doi.pangaea.de/10.1594/PANGAEA.892970 https://doi.org/10.1594/PANGAEA.892970 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.892970 https://doi.org/10.3732/apps.1700054 2023-01-20T07:34:11Z Lichens are symbiotic associations consisting of a fungal (mycobiont) and one or more photosynthetic (photobionts) partners and are the dominant component, and most important primary producers, of Antarctic terrestrial ecosystems. The most common lichens in the maritime Antarctic are Usnea antarctica and U. aurantiacoatra, a so-called "species pair" in which U. antarctica shows asexual reproduction and propagation via soredia and U. aurantiacoatra forms ascospores in apothecia. Previous molecular analyses were not able to unambiguously distinguish the two morphotypes as species. Therefore, the goal of this study was to find out whether fast-evolving SSR (Single Sequence Repeats) markers are able to separate morphotypes more clearly and help to clarify their taxonomy. We investigate 190 individuals from five mixed stands of both morphotypes collected in King George Island and Elephant Island (South Shetland Islands, Antarctica). Based on 23 microsatellite markers designed from sequenced genomes, discriminant analysis of principal components (DAPC), Bayesian clustering analysis and coalescent-based estimation of gene flow show clear evidence for the existence of two different species distinguishable by reproductive mode. We did not detect any statistical association between genetic clusters and three previously reported chemical races of each species. Dataset Antarc* Antarctic Antarctica Arctic Elephant Island King George Island Sea ice South Shetland Islands Usnea antarctica PANGAEA - Data Publisher for Earth & Environmental Science Arctic Antarctic King George Island South Shetland Islands Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) ENVELOPE(-58.992750,-55.358780,-61.216530,-62.252900) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Lagostina, Elisa Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair |
topic_facet |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
Lichens are symbiotic associations consisting of a fungal (mycobiont) and one or more photosynthetic (photobionts) partners and are the dominant component, and most important primary producers, of Antarctic terrestrial ecosystems. The most common lichens in the maritime Antarctic are Usnea antarctica and U. aurantiacoatra, a so-called "species pair" in which U. antarctica shows asexual reproduction and propagation via soredia and U. aurantiacoatra forms ascospores in apothecia. Previous molecular analyses were not able to unambiguously distinguish the two morphotypes as species. Therefore, the goal of this study was to find out whether fast-evolving SSR (Single Sequence Repeats) markers are able to separate morphotypes more clearly and help to clarify their taxonomy. We investigate 190 individuals from five mixed stands of both morphotypes collected in King George Island and Elephant Island (South Shetland Islands, Antarctica). Based on 23 microsatellite markers designed from sequenced genomes, discriminant analysis of principal components (DAPC), Bayesian clustering analysis and coalescent-based estimation of gene flow show clear evidence for the existence of two different species distinguishable by reproductive mode. We did not detect any statistical association between genetic clusters and three previously reported chemical races of each species. |
format |
Dataset |
author |
Lagostina, Elisa |
author_facet |
Lagostina, Elisa |
author_sort |
Lagostina, Elisa |
title |
Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair |
title_short |
Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair |
title_full |
Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair |
title_fullStr |
Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair |
title_full_unstemmed |
Microsatellite markers and ITS sequences to investigate Usnea antarctica and U. aurantiacoatra species pair |
title_sort |
microsatellite markers and its sequences to investigate usnea antarctica and u. aurantiacoatra species pair |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.892970 https://doi.org/10.1594/PANGAEA.892970 |
op_coverage |
MEDIAN LATITUDE: -61.765230 * MEDIAN LONGITUDE: -57.231938 * SOUTH-BOUND LATITUDE: -62.252900 * WEST-BOUND LONGITUDE: -58.992750 * NORTH-BOUND LATITUDE: -61.216530 * EAST-BOUND LONGITUDE: -55.358780 * DATE/TIME START: 2015-12-18T00:00:00 * DATE/TIME END: 2016-04-08T00:00:00 |
long_lat |
ENVELOPE(-55.184,-55.184,-61.085,-61.085) ENVELOPE(-58.992750,-55.358780,-61.216530,-62.252900) |
geographic |
Arctic Antarctic King George Island South Shetland Islands Elephant Island |
geographic_facet |
Arctic Antarctic King George Island South Shetland Islands Elephant Island |
genre |
Antarc* Antarctic Antarctica Arctic Elephant Island King George Island Sea ice South Shetland Islands Usnea antarctica |
genre_facet |
Antarc* Antarctic Antarctica Arctic Elephant Island King George Island Sea ice South Shetland Islands Usnea antarctica |
op_relation |
Lagostina, Elisa; Dal Grande, Francesco; Ott, Sieglinde; Printzen, Christian (2017): Fungus-specific SSR markers in the Antarctic lichens Usnea antarctica and U. aurantiacoatra (Parmeliaceae, Ascomycota). Applications in Plant Sciences, 5(9), 1700054, https://doi.org/10.3732/apps.1700054 https://doi.pangaea.de/10.1594/PANGAEA.892970 https://doi.org/10.1594/PANGAEA.892970 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.892970 https://doi.org/10.3732/apps.1700054 |
_version_ |
1766276404353171456 |