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Combining populatio...
Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
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Knutsen, Halvor (författare)
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Catarino, Diana (författare)
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Rogers, Lauren (författare)
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visa fler...
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Sodeland, Marte (författare)
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Mattingsdal, Morten (författare)
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- Jahnke, Marlene (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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Hutchings, Jeffery A. (författare)
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Mellerud, Ida (författare)
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Espelund, Sigurd H. (författare)
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- Johannesson, Kerstin, 1955 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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Roth, Olivia (författare)
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Hansen, Michael M. (författare)
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Jentoft, Sissel (författare)
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- André, Carl, 1958 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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Jorde, Per Erik (författare)
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visa färre...
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(creator_code:org_t)
- 2022-03-15
- 2022
- Engelska.
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Ingår i: Molecular Ecology. - : Wiley. - 0962-1083 .- 1365-294X. ; 31:9, s. 2562-2577
- Relaterad länk:
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https://onlinelibrar...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Gene flow shapes spatial genetic structure and the potential for local adaptation. Among marine animals with non-migratory 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 (ddRAD) sequencing data to analyze 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.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- Habitat patchiness
- Isolation by distance
- larval drift
- gene flow
- genomics
- marine fish
- coastal
- comparative study
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Knutsen, Halvor
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Catarino, Diana
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Rogers, Lauren
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Sodeland, Marte
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Mattingsdal, Mor ...
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Jahnke, Marlene
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visa fler...
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Hutchings, Jeffe ...
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Mellerud, Ida
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Espelund, Sigurd ...
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Johannesson, Ker ...
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Roth, Olivia
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Hansen, Michael ...
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Jentoft, Sissel
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André, Carl, 195 ...
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Jorde, Per Erik
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visa färre...
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NATURVETENSKAP
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Molecular Ecolog ...
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Göteborgs universitet