Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf
Amphiboreal taxa are often composed of vicariant phylogroups and species complexes whose divergence and phylogeographic affinities reflect a shared history of chronic isolation and episodic trans-Arctic dispersal. Ecological filters and shifting selective pressures may also promote selective sweeps,...
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2024
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ftfrontimediafig:oai:figshare.com:article/25635000 2024-09-09T19:20:32+00:00 Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf João Neiva Jorge Assis Eliza Fragkopoulou Gareth A. Pearson Peter T. Raimondi Laura Anderson Dorte Krause-Jensen Núria Marbà Andrew Want Olga Selivanova Masahiro Nakaoka W. Stewart Grant Brenda Konar Michael Y. Roleda Mikael K. Sejr Cristina Paulino Ester A. Serrão 2024-04-18T09:20:24Z https://doi.org/10.3389/fevo.2024.1356987.s003 https://figshare.com/articles/figure/Image_3_Trans-Arctic_asymmetries_melting_pots_and_weak_species_cohesion_in_the_low-dispersal_amphiboreal_seaweed_Fucus_distichus_pdf/25635000 unknown doi:10.3389/fevo.2024.1356987.s003 https://figshare.com/articles/figure/Image_3_Trans-Arctic_asymmetries_melting_pots_and_weak_species_cohesion_in_the_low-dispersal_amphiboreal_seaweed_Fucus_distichus_pdf/25635000 CC BY 4.0 Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology intertidal climate-driven range shifts cryptic species functional bottleneck genetic hotspots and melting pots niche unfilling trans-Arctic phylogeography Image Figure 2024 ftfrontimediafig https://doi.org/10.3389/fevo.2024.1356987.s003 2024-08-19T06:19:45Z Amphiboreal taxa are often composed of vicariant phylogroups and species complexes whose divergence and phylogeographic affinities reflect a shared history of chronic isolation and episodic trans-Arctic dispersal. Ecological filters and shifting selective pressures may also promote selective sweeps, niche shifts and ecological speciation during colonization, but these are seldom considered at biogeographical scales. Here we integrate genetic data and Ecologic Niche Models (ENMs) to investigate the historical biogeography and cohesion of the polymorphic rockweed Fucus distichus throughout its immense amphiboreal range, focusing on trans-Arctic asymmetries, glacial/interglacial dynamics, and integrity of sympatric eco-morphotypes. Populations were sampled throughout the Pacific and the Atlantic, from southern rear-edges to the high-Arctic. They were genotyped for seven microsatellites and an mtDNA spacer, and genetic diversity and structure were assessed from global to local scales. ENMs were used to compare niche divergence and magnitude of post-glacial range shifts in Pacific versus Atlantic sub-ranges. Haplotypic and genotypic data revealed distinct and seemingly isolated Pacific vs Arctic/Atlantic gene-pools, with finer-scale regional sub-structuring pervasive in the Pacific. MtDNA diversity was highly structured and overwhelmingly concentrated in the Pacific. Regionally, Alaska showed the highest intra-population diversity but the lowest levels of endemism. Some sympatric/parapatric ecotypes exhibited distinct genotypic/haplotypic compositions. Strikingly, niche models revealed higher Pacific tolerance to maximum temperatures and predicted a much more consolidated presence in the NE Atlantic. Glacial and modern ranges overlapped extensively in the Pacific, whereas the modern Atlantic range was largely glaciated or emerged during the Last Glacial Maximum. Higher genetic and ecogeographic diversity supports a primary Pacific diversification and secondary Atlantic colonization, also likely reflecting the much ... Still Image Arctic Alaska Frontiers: Figshare Arctic Pacific |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology intertidal climate-driven range shifts cryptic species functional bottleneck genetic hotspots and melting pots niche unfilling trans-Arctic phylogeography |
spellingShingle |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology intertidal climate-driven range shifts cryptic species functional bottleneck genetic hotspots and melting pots niche unfilling trans-Arctic phylogeography João Neiva Jorge Assis Eliza Fragkopoulou Gareth A. Pearson Peter T. Raimondi Laura Anderson Dorte Krause-Jensen Núria Marbà Andrew Want Olga Selivanova Masahiro Nakaoka W. Stewart Grant Brenda Konar Michael Y. Roleda Mikael K. Sejr Cristina Paulino Ester A. Serrão Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf |
topic_facet |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology intertidal climate-driven range shifts cryptic species functional bottleneck genetic hotspots and melting pots niche unfilling trans-Arctic phylogeography |
description |
Amphiboreal taxa are often composed of vicariant phylogroups and species complexes whose divergence and phylogeographic affinities reflect a shared history of chronic isolation and episodic trans-Arctic dispersal. Ecological filters and shifting selective pressures may also promote selective sweeps, niche shifts and ecological speciation during colonization, but these are seldom considered at biogeographical scales. Here we integrate genetic data and Ecologic Niche Models (ENMs) to investigate the historical biogeography and cohesion of the polymorphic rockweed Fucus distichus throughout its immense amphiboreal range, focusing on trans-Arctic asymmetries, glacial/interglacial dynamics, and integrity of sympatric eco-morphotypes. Populations were sampled throughout the Pacific and the Atlantic, from southern rear-edges to the high-Arctic. They were genotyped for seven microsatellites and an mtDNA spacer, and genetic diversity and structure were assessed from global to local scales. ENMs were used to compare niche divergence and magnitude of post-glacial range shifts in Pacific versus Atlantic sub-ranges. Haplotypic and genotypic data revealed distinct and seemingly isolated Pacific vs Arctic/Atlantic gene-pools, with finer-scale regional sub-structuring pervasive in the Pacific. MtDNA diversity was highly structured and overwhelmingly concentrated in the Pacific. Regionally, Alaska showed the highest intra-population diversity but the lowest levels of endemism. Some sympatric/parapatric ecotypes exhibited distinct genotypic/haplotypic compositions. Strikingly, niche models revealed higher Pacific tolerance to maximum temperatures and predicted a much more consolidated presence in the NE Atlantic. Glacial and modern ranges overlapped extensively in the Pacific, whereas the modern Atlantic range was largely glaciated or emerged during the Last Glacial Maximum. Higher genetic and ecogeographic diversity supports a primary Pacific diversification and secondary Atlantic colonization, also likely reflecting the much ... |
format |
Still Image |
author |
João Neiva Jorge Assis Eliza Fragkopoulou Gareth A. Pearson Peter T. Raimondi Laura Anderson Dorte Krause-Jensen Núria Marbà Andrew Want Olga Selivanova Masahiro Nakaoka W. Stewart Grant Brenda Konar Michael Y. Roleda Mikael K. Sejr Cristina Paulino Ester A. Serrão |
author_facet |
João Neiva Jorge Assis Eliza Fragkopoulou Gareth A. Pearson Peter T. Raimondi Laura Anderson Dorte Krause-Jensen Núria Marbà Andrew Want Olga Selivanova Masahiro Nakaoka W. Stewart Grant Brenda Konar Michael Y. Roleda Mikael K. Sejr Cristina Paulino Ester A. Serrão |
author_sort |
João Neiva |
title |
Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf |
title_short |
Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf |
title_full |
Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf |
title_fullStr |
Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf |
title_full_unstemmed |
Image_3_Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus.pdf |
title_sort |
image_3_trans-arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed fucus distichus.pdf |
publishDate |
2024 |
url |
https://doi.org/10.3389/fevo.2024.1356987.s003 https://figshare.com/articles/figure/Image_3_Trans-Arctic_asymmetries_melting_pots_and_weak_species_cohesion_in_the_low-dispersal_amphiboreal_seaweed_Fucus_distichus_pdf/25635000 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_relation |
doi:10.3389/fevo.2024.1356987.s003 https://figshare.com/articles/figure/Image_3_Trans-Arctic_asymmetries_melting_pots_and_weak_species_cohesion_in_the_low-dispersal_amphiboreal_seaweed_Fucus_distichus_pdf/25635000 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fevo.2024.1356987.s003 |
_version_ |
1809760682533453824 |