Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens

Abstract The species we have studied the spatiotemporal genetic change in the northern dragonhead, a plant species that has experienced a drastic population decline and habitat loss in Europe. We have added a temporal perspective to the monitoring of northern dragonhead in Norway by genotyping herba...

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Main Authors: Malene Nygaard, Alexander Kopatz, James M. D. Speed, Michael D. Martin, Tommy Prestø, Oddmund Kleven, Mika Bendiksby
Format: Article
Language:English
Published: Wiley 2022-08-01
Series:Ecology and Evolution
Subjects:
Online Access:https://doi.org/10.1002/ece3.9187
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author Malene Nygaard
Alexander Kopatz
James M. D. Speed
Michael D. Martin
Tommy Prestø
Oddmund Kleven
Mika Bendiksby
author_facet Malene Nygaard
Alexander Kopatz
James M. D. Speed
Michael D. Martin
Tommy Prestø
Oddmund Kleven
Mika Bendiksby
author_sort Malene Nygaard
collection DOAJ
description Abstract The species we have studied the spatiotemporal genetic change in the northern dragonhead, a plant species that has experienced a drastic population decline and habitat loss in Europe. We have added a temporal perspective to the monitoring of northern dragonhead in Norway by genotyping herbarium specimens up to 200 years old. We have also assessed whether northern dragonhead has achieved its potential distribution in Norway. To obtain the genotype data from 130 herbarium specimens collected from 1820 to 2008, mainly from Norway (83) but also beyond (47), we applied a microfluidic array consisting of 96 SNP markers. To assess temporal genetic change, we compared our new genotype data with existing data from modern samples. We used sample metadata and observational records to model the species' environmental niche and potential distribution in Norway. Our results show that the SNP array successfully genotyped all included herbarium specimens. Hence, with the appropriate design procedures, the SNP array technology appears highly promising for genotyping old herbarium specimens. The captured genetic diversity correlates negatively with distance from Norway. The historical‐modern comparisons reveal similar genetic structure and diversity across space and limited genetic change through time in Norway, providing no signs of any regional bottleneck (i.e., spatiotemporal stasis). The regional areas in Norway have remained genetically divergent, however, both from each other and more so from populations outside of Norway, rendering continued protection of the species in Norway relevant. The ENM results suggest that northern dragonhead has not fully achieved its potential distribution in Norway and corroborate that the species is anchored in warmer and drier habitats.
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spelling doaj.art-d630ce5efcbe4b49ae06f06d45bd7e6b2022-12-22T04:15:25ZengWileyEcology and Evolution2045-77582022-08-01128n/an/a10.1002/ece3.9187Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimensMalene Nygaard0Alexander Kopatz1James M. D. Speed2Michael D. Martin3Tommy Prestø4Oddmund Kleven5Mika Bendiksby6NTNU University Museum Norwegian University of Science and Technology Trondheim NorwayNorwegian Institute for Nature Research Trondheim NorwayNTNU University Museum Norwegian University of Science and Technology Trondheim NorwayNTNU University Museum Norwegian University of Science and Technology Trondheim NorwayNTNU University Museum Norwegian University of Science and Technology Trondheim NorwayNorwegian Institute for Nature Research Trondheim NorwayNTNU University Museum Norwegian University of Science and Technology Trondheim NorwayAbstract The species we have studied the spatiotemporal genetic change in the northern dragonhead, a plant species that has experienced a drastic population decline and habitat loss in Europe. We have added a temporal perspective to the monitoring of northern dragonhead in Norway by genotyping herbarium specimens up to 200 years old. We have also assessed whether northern dragonhead has achieved its potential distribution in Norway. To obtain the genotype data from 130 herbarium specimens collected from 1820 to 2008, mainly from Norway (83) but also beyond (47), we applied a microfluidic array consisting of 96 SNP markers. To assess temporal genetic change, we compared our new genotype data with existing data from modern samples. We used sample metadata and observational records to model the species' environmental niche and potential distribution in Norway. Our results show that the SNP array successfully genotyped all included herbarium specimens. Hence, with the appropriate design procedures, the SNP array technology appears highly promising for genotyping old herbarium specimens. The captured genetic diversity correlates negatively with distance from Norway. The historical‐modern comparisons reveal similar genetic structure and diversity across space and limited genetic change through time in Norway, providing no signs of any regional bottleneck (i.e., spatiotemporal stasis). The regional areas in Norway have remained genetically divergent, however, both from each other and more so from populations outside of Norway, rendering continued protection of the species in Norway relevant. The ENM results suggest that northern dragonhead has not fully achieved its potential distribution in Norway and corroborate that the species is anchored in warmer and drier habitats.https://doi.org/10.1002/ece3.9187biodiversity conservationenvironmental niche modellingherbarium specimensmicrofluidic SNP genotypingspatiotemporal stasis
spellingShingle Malene Nygaard
Alexander Kopatz
James M. D. Speed
Michael D. Martin
Tommy Prestø
Oddmund Kleven
Mika Bendiksby
Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens
Ecology and Evolution
biodiversity conservation
environmental niche modelling
herbarium specimens
microfluidic SNP genotyping
spatiotemporal stasis
title Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens
title_full Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens
title_fullStr Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens
title_full_unstemmed Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens
title_short Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens
title_sort spatiotemporal monitoring of the rare northern dragonhead dracocephalum ruyschiana lamiaceae snp genotyping and environmental niche modeling herbarium specimens
topic biodiversity conservation
environmental niche modelling
herbarium specimens
microfluidic SNP genotyping
spatiotemporal stasis
url https://doi.org/10.1002/ece3.9187
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