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Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species

Gene flow shapes spatial genetic structure and the potential for local adaptation. Among marine animals with nonmigratory adults, the presence or absence of a pelagic larval stage is thought to be a key determinant in shaping gene flow and the genetic structure of populations. In addition, the spati...

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Autores principales: Knutsen, Halvor, Catarino, Diana, Rogers, Lauren, Sodeland, Marte, Mattingsdal, Morten, Jahnke, Marlene, Hutchings, Jeffrey A., Mellerud, Ida, Espeland, Sigurd H., Johanneson, Kerstin, Roth, Olivia, Hansen, Michael M., Jentoft, Sissel, André, Carl, Jorde, Per Erik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9311693/
https://www.ncbi.nlm.nih.gov/pubmed/35229385
http://dx.doi.org/10.1111/mec.16415
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author Knutsen, Halvor
Catarino, Diana
Rogers, Lauren
Sodeland, Marte
Mattingsdal, Morten
Jahnke, Marlene
Hutchings, Jeffrey A.
Mellerud, Ida
Espeland, Sigurd H.
Johanneson, Kerstin
Roth, Olivia
Hansen, Michael M.
Jentoft, Sissel
André, Carl
Jorde, Per Erik
author_facet Knutsen, Halvor
Catarino, Diana
Rogers, Lauren
Sodeland, Marte
Mattingsdal, Morten
Jahnke, Marlene
Hutchings, Jeffrey A.
Mellerud, Ida
Espeland, Sigurd H.
Johanneson, Kerstin
Roth, Olivia
Hansen, Michael M.
Jentoft, Sissel
André, Carl
Jorde, Per Erik
author_sort Knutsen, Halvor
collection PubMed
description Gene flow shapes spatial genetic structure and the potential for local adaptation. Among marine animals with nonmigratory adults, the presence or absence of a pelagic larval stage is thought to be a key determinant in shaping gene flow and the genetic structure of populations. In addition, the spatial distribution of suitable habitats is expected to influence the distribution of biological populations and their connectivity patterns. We used whole genome sequencing to study demographic history and reduced representation (double‐digest restriction associated DNA) sequencing data to analyse spatial genetic structure in broadnosed pipefish (Syngnathus typhle). Its main habitat is eelgrass beds, which are patchily distributed along the study area in southern Norway. Demographic connectivity among populations was inferred from long‐term (~30‐year) population counts that uncovered a rapid decline in spatial correlations in abundance with distance as short as ~2 km. These findings were contrasted with data for two other fish species that have a pelagic larval stage (corkwing wrasse, Symphodus melops; black goby, Gobius niger). For these latter species, we found wider spatial scales of connectivity and weaker genetic isolation‐by‐distance patterns, except where both species experienced a strong barrier to gene flow, seemingly due to lack of suitable habitat. Our findings verify expectations that a fragmented habitat and absence of a pelagic larval stage promote genetic structure, while presence of a pelagic larvae stage increases demographic connectivity and gene flow, except perhaps over extensive habitat gaps.
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spelling pubmed-93116932022-07-29 Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species Knutsen, Halvor Catarino, Diana Rogers, Lauren Sodeland, Marte Mattingsdal, Morten Jahnke, Marlene Hutchings, Jeffrey A. Mellerud, Ida Espeland, Sigurd H. Johanneson, Kerstin Roth, Olivia Hansen, Michael M. Jentoft, Sissel André, Carl Jorde, Per Erik Mol Ecol ORIGINAL ARTICLES Gene flow shapes spatial genetic structure and the potential for local adaptation. Among marine animals with nonmigratory adults, the presence or absence of a pelagic larval stage is thought to be a key determinant in shaping gene flow and the genetic structure of populations. In addition, the spatial distribution of suitable habitats is expected to influence the distribution of biological populations and their connectivity patterns. We used whole genome sequencing to study demographic history and reduced representation (double‐digest restriction associated DNA) sequencing data to analyse spatial genetic structure in broadnosed pipefish (Syngnathus typhle). Its main habitat is eelgrass beds, which are patchily distributed along the study area in southern Norway. Demographic connectivity among populations was inferred from long‐term (~30‐year) population counts that uncovered a rapid decline in spatial correlations in abundance with distance as short as ~2 km. These findings were contrasted with data for two other fish species that have a pelagic larval stage (corkwing wrasse, Symphodus melops; black goby, Gobius niger). For these latter species, we found wider spatial scales of connectivity and weaker genetic isolation‐by‐distance patterns, except where both species experienced a strong barrier to gene flow, seemingly due to lack of suitable habitat. Our findings verify expectations that a fragmented habitat and absence of a pelagic larval stage promote genetic structure, while presence of a pelagic larvae stage increases demographic connectivity and gene flow, except perhaps over extensive habitat gaps. John Wiley and Sons Inc. 2022-03-15 2022-05 /pmc/articles/PMC9311693/ /pubmed/35229385 http://dx.doi.org/10.1111/mec.16415 Text en © 2022 The Authors. Molecular Ecology published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle ORIGINAL ARTICLES
Knutsen, Halvor
Catarino, Diana
Rogers, Lauren
Sodeland, Marte
Mattingsdal, Morten
Jahnke, Marlene
Hutchings, Jeffrey A.
Mellerud, Ida
Espeland, Sigurd H.
Johanneson, Kerstin
Roth, Olivia
Hansen, Michael M.
Jentoft, Sissel
André, Carl
Jorde, Per Erik
Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
title Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
title_full Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
title_fullStr Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
title_full_unstemmed Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
title_short Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
title_sort combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
topic ORIGINAL ARTICLES
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9311693/
https://www.ncbi.nlm.nih.gov/pubmed/35229385
http://dx.doi.org/10.1111/mec.16415
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