From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles.
The northern acorn barnacle (Semibalanus balanoides) is a robust system to study the genetic basis of adaptations to highly heterogeneous environments. Adult barnacles may be exposed to highly dissimilar levels of thermal stress depending on where they settle in the intertidal (i.e., closer to the u...
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Online Access: | https://doi.org/10.1111/mec.15949 https://pubmed.ncbi.nlm.nih.gov/33960035 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9292448/ |
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ftpubmed:33960035 2024-09-15T18:22:38+00:00 From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles. Nunez, Joaquin C B Rong, Stephen Ferranti, David A Damian-Serrano, Alejandro Neil, Kimberly B Glenner, Henrik Elyanow, Rebecca G Brown, Bianca R P Alm Rosenblad, Magnus Blomberg, Anders Johannesson, Kerstin Rand, David M 2021-12 https://doi.org/10.1111/mec.15949 https://pubmed.ncbi.nlm.nih.gov/33960035 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9292448/ eng eng Wiley https://doi.org/10.1111/mec.15949 https://pubmed.ncbi.nlm.nih.gov/33960035 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9292448/ © 2021 The Authors. Molecular Ecology published by John Wiley & Sons Ltd. Mol Ecol ISSN:1365-294X Volume:30 Issue:23 Semibalanus balanoides balancing selection barnacles ecological genomics ecological load intertidal zonation Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2021 ftpubmed https://doi.org/10.1111/mec.15949 2024-09-01T16:02:00Z The northern acorn barnacle (Semibalanus balanoides) is a robust system to study the genetic basis of adaptations to highly heterogeneous environments. Adult barnacles may be exposed to highly dissimilar levels of thermal stress depending on where they settle in the intertidal (i.e., closer to the upper or lower tidal boundary). For instance, barnacles near the upper tidal limit experience episodic summer temperatures above recorded heat coma levels. This differential stress at the microhabitat level is also dependent on the aspect of sun exposure. In the present study, we used pool-seq approaches to conduct a genome wide screen for loci responding to intertidal zonation across the North Atlantic basin (Maine, Rhode Island, and Norway). Our analysis discovered 382 genomic regions containing SNPs which are consistently zonated (i.e., SNPs whose frequencies vary depending on their position in the rocky intertidal) across all surveyed habitats. Notably, most zonated SNPs are young and private to the North Atlantic. These regions show high levels of genetic differentiation across ecologically extreme microhabitats concomitant with elevated levels of genetic variation and Tajima's D, suggesting the action of non-neutral processes. Overall, these findings support the hypothesis that spatially heterogeneous selection is a general and repeatable feature for this species, and that natural selection can maintain functional genetic variation in heterogeneous environments. Article in Journal/Newspaper North Atlantic PubMed Central (PMC) Molecular Ecology 30 23 6417 6433 |
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Open Polar |
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PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Semibalanus balanoides balancing selection barnacles ecological genomics ecological load intertidal zonation |
spellingShingle |
Semibalanus balanoides balancing selection barnacles ecological genomics ecological load intertidal zonation Nunez, Joaquin C B Rong, Stephen Ferranti, David A Damian-Serrano, Alejandro Neil, Kimberly B Glenner, Henrik Elyanow, Rebecca G Brown, Bianca R P Alm Rosenblad, Magnus Blomberg, Anders Johannesson, Kerstin Rand, David M From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles. |
topic_facet |
Semibalanus balanoides balancing selection barnacles ecological genomics ecological load intertidal zonation |
description |
The northern acorn barnacle (Semibalanus balanoides) is a robust system to study the genetic basis of adaptations to highly heterogeneous environments. Adult barnacles may be exposed to highly dissimilar levels of thermal stress depending on where they settle in the intertidal (i.e., closer to the upper or lower tidal boundary). For instance, barnacles near the upper tidal limit experience episodic summer temperatures above recorded heat coma levels. This differential stress at the microhabitat level is also dependent on the aspect of sun exposure. In the present study, we used pool-seq approaches to conduct a genome wide screen for loci responding to intertidal zonation across the North Atlantic basin (Maine, Rhode Island, and Norway). Our analysis discovered 382 genomic regions containing SNPs which are consistently zonated (i.e., SNPs whose frequencies vary depending on their position in the rocky intertidal) across all surveyed habitats. Notably, most zonated SNPs are young and private to the North Atlantic. These regions show high levels of genetic differentiation across ecologically extreme microhabitats concomitant with elevated levels of genetic variation and Tajima's D, suggesting the action of non-neutral processes. Overall, these findings support the hypothesis that spatially heterogeneous selection is a general and repeatable feature for this species, and that natural selection can maintain functional genetic variation in heterogeneous environments. |
format |
Article in Journal/Newspaper |
author |
Nunez, Joaquin C B Rong, Stephen Ferranti, David A Damian-Serrano, Alejandro Neil, Kimberly B Glenner, Henrik Elyanow, Rebecca G Brown, Bianca R P Alm Rosenblad, Magnus Blomberg, Anders Johannesson, Kerstin Rand, David M |
author_facet |
Nunez, Joaquin C B Rong, Stephen Ferranti, David A Damian-Serrano, Alejandro Neil, Kimberly B Glenner, Henrik Elyanow, Rebecca G Brown, Bianca R P Alm Rosenblad, Magnus Blomberg, Anders Johannesson, Kerstin Rand, David M |
author_sort |
Nunez, Joaquin C B |
title |
From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles. |
title_short |
From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles. |
title_full |
From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles. |
title_fullStr |
From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles. |
title_full_unstemmed |
From tides to nucleotides: Genomic signatures of adaptation to environmental heterogeneity in barnacles. |
title_sort |
from tides to nucleotides: genomic signatures of adaptation to environmental heterogeneity in barnacles. |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1111/mec.15949 https://pubmed.ncbi.nlm.nih.gov/33960035 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9292448/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Mol Ecol ISSN:1365-294X Volume:30 Issue:23 |
op_relation |
https://doi.org/10.1111/mec.15949 https://pubmed.ncbi.nlm.nih.gov/33960035 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9292448/ |
op_rights |
© 2021 The Authors. Molecular Ecology published by John Wiley & Sons Ltd. |
op_doi |
https://doi.org/10.1111/mec.15949 |
container_title |
Molecular Ecology |
container_volume |
30 |
container_issue |
23 |
container_start_page |
6417 |
op_container_end_page |
6433 |
_version_ |
1810462554342817792 |