Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX
Global climate change has resulted in geographic range shifts of flora and fauna at a global scale. Extreme environments, like the Arctic, are seeing some of the most pronounced changes. This region covers 14% of the Earth’s land area, and while many arctic species are widespread, understanding ecot...
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ftfrontimediafig:oai:figshare.com:article/19408325 2023-05-15T14:51:14+02:00 Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX Elizabeth Stunz Ned Fetcher Philip Lavretsky Jonathon E. Mohl Jianwu Tang Michael L. Moody 2022-03-24T04:42:21Z https://doi.org/10.3389/fpls.2022.860439.s004 https://figshare.com/articles/dataset/Table_3_Landscape_Genomics_Provides_Evidence_of_Ecotypic_Adaptation_and_a_Barrier_to_Gene_Flow_at_Treeline_for_the_Arctic_Foundation_Species_Eriophorum_vaginatum_DOCX/19408325 unknown doi:10.3389/fpls.2022.860439.s004 https://figshare.com/articles/dataset/Table_3_Landscape_Genomics_Provides_Evidence_of_Ecotypic_Adaptation_and_a_Barrier_to_Gene_Flow_at_Treeline_for_the_Arctic_Foundation_Species_Eriophorum_vaginatum_DOCX/19408325 CC BY 4.0 CC-BY Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified arctic climate change Eriophorum vaginatum landscape genomics environmental niche modeling genotype-environment association analyses refugia Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fpls.2022.860439.s004 2022-03-30T23:09:27Z Global climate change has resulted in geographic range shifts of flora and fauna at a global scale. Extreme environments, like the Arctic, are seeing some of the most pronounced changes. This region covers 14% of the Earth’s land area, and while many arctic species are widespread, understanding ecotypic variation at the genomic level will be important for elucidating how range shifts will affect ecological processes. Tussock cottongrass (Eriophorum vaginatum L.) is a foundation species of the moist acidic tundra, whose potential decline due to competition from shrubs may affect ecosystem stability in the Arctic. We used double-digest Restriction Site-Associated DNA sequencing to identify genomic variation in 273 individuals of E. vaginatum from 17 sites along a latitudinal gradient in north central Alaska. These sites have been part of 30 + years of ecological research and are inclusive of a region that was part of the Beringian refugium. The data analyses included genomic population structure, demographic models, and genotype by environment association. Genome-wide SNP investigation revealed environmentally associated variation and population structure across the sampled range of E. vaginatum, including a genetic break between populations north and south of treeline. This structure is likely the result of subrefugial isolation, contemporary isolation by resistance, and adaptation. Forty-five candidate loci were identified with genotype-environment association (GEA) analyses, with most identified genes related to abiotic stress. Our results support a hypothesis of limited gene flow based on spatial and environmental factors for E. vaginatum, which in combination with life history traits could limit range expansion of southern ecotypes northward as the tundra warms. This has implications for lower competitive attributes of northern plants of this foundation species likely resulting in changes in ecosystem productivity. Dataset Arctic Climate change Eriophorum Tundra Alaska Cottongrass Frontiers: Figshare Arctic |
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Open Polar |
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Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified arctic climate change Eriophorum vaginatum landscape genomics environmental niche modeling genotype-environment association analyses refugia |
spellingShingle |
Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified arctic climate change Eriophorum vaginatum landscape genomics environmental niche modeling genotype-environment association analyses refugia Elizabeth Stunz Ned Fetcher Philip Lavretsky Jonathon E. Mohl Jianwu Tang Michael L. Moody Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX |
topic_facet |
Botany Plant Biology Plant Systematics and Taxonomy Plant Cell and Molecular Biology Plant Developmental and Reproductive Biology Plant Pathology Plant Physiology Plant Biology not elsewhere classified arctic climate change Eriophorum vaginatum landscape genomics environmental niche modeling genotype-environment association analyses refugia |
description |
Global climate change has resulted in geographic range shifts of flora and fauna at a global scale. Extreme environments, like the Arctic, are seeing some of the most pronounced changes. This region covers 14% of the Earth’s land area, and while many arctic species are widespread, understanding ecotypic variation at the genomic level will be important for elucidating how range shifts will affect ecological processes. Tussock cottongrass (Eriophorum vaginatum L.) is a foundation species of the moist acidic tundra, whose potential decline due to competition from shrubs may affect ecosystem stability in the Arctic. We used double-digest Restriction Site-Associated DNA sequencing to identify genomic variation in 273 individuals of E. vaginatum from 17 sites along a latitudinal gradient in north central Alaska. These sites have been part of 30 + years of ecological research and are inclusive of a region that was part of the Beringian refugium. The data analyses included genomic population structure, demographic models, and genotype by environment association. Genome-wide SNP investigation revealed environmentally associated variation and population structure across the sampled range of E. vaginatum, including a genetic break between populations north and south of treeline. This structure is likely the result of subrefugial isolation, contemporary isolation by resistance, and adaptation. Forty-five candidate loci were identified with genotype-environment association (GEA) analyses, with most identified genes related to abiotic stress. Our results support a hypothesis of limited gene flow based on spatial and environmental factors for E. vaginatum, which in combination with life history traits could limit range expansion of southern ecotypes northward as the tundra warms. This has implications for lower competitive attributes of northern plants of this foundation species likely resulting in changes in ecosystem productivity. |
format |
Dataset |
author |
Elizabeth Stunz Ned Fetcher Philip Lavretsky Jonathon E. Mohl Jianwu Tang Michael L. Moody |
author_facet |
Elizabeth Stunz Ned Fetcher Philip Lavretsky Jonathon E. Mohl Jianwu Tang Michael L. Moody |
author_sort |
Elizabeth Stunz |
title |
Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX |
title_short |
Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX |
title_full |
Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX |
title_fullStr |
Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX |
title_full_unstemmed |
Table_3_Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum.DOCX |
title_sort |
table_3_landscape genomics provides evidence of ecotypic adaptation and a barrier to gene flow at treeline for the arctic foundation species eriophorum vaginatum.docx |
publishDate |
2022 |
url |
https://doi.org/10.3389/fpls.2022.860439.s004 https://figshare.com/articles/dataset/Table_3_Landscape_Genomics_Provides_Evidence_of_Ecotypic_Adaptation_and_a_Barrier_to_Gene_Flow_at_Treeline_for_the_Arctic_Foundation_Species_Eriophorum_vaginatum_DOCX/19408325 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Eriophorum Tundra Alaska Cottongrass |
genre_facet |
Arctic Climate change Eriophorum Tundra Alaska Cottongrass |
op_relation |
doi:10.3389/fpls.2022.860439.s004 https://figshare.com/articles/dataset/Table_3_Landscape_Genomics_Provides_Evidence_of_Ecotypic_Adaptation_and_a_Barrier_to_Gene_Flow_at_Treeline_for_the_Arctic_Foundation_Species_Eriophorum_vaginatum_DOCX/19408325 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fpls.2022.860439.s004 |
_version_ |
1766322286853357568 |