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Multiple chromosoma...
Multiple chromosomal rearrangements in a hybrid zone between Littorina saxatilis ecotypes
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Faria, R. (author)
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Chaube, P. (author)
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- Morales, Hernán E., 1985 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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- Larsson, Tomas (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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Lemmon, A. R. (author)
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Lemmon, E. M. (author)
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- Rafajlović, Marina, 1983 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
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- Panova, Marina, 1973 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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Ravinet, M. (author)
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- Johannesson, Kerstin, 1955 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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Westram, A. M. (author)
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- Butlin, Roger, 1955 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory
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(creator_code:org_t)
- 2019-02-25
- 2019
- English.
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In: Molecular Ecology. - : Wiley. - 0962-1083 .- 1365-294X. ; 28:6, s. 1375-1393
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Abstract
Subject headings
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- Both classical and recent studies suggest that chromosomal inversion polymorphisms are important in adaptation and speciation. However, biases in discovery and reporting of inversions make it difficult to assess their prevalence and biological importance. Here, we use an approach based on linkage disequilibrium among markers genotyped for samples collected across a transect between contrasting habitats to detect chromosomal rearrangements de novo. We report 17 polymorphic rearrangements in a single locality for the coastal marine snail, Littorina saxatilis. Patterns of diversity in the field and of recombination in controlled crosses provide strong evidence that at least the majority of these rearrangements are inversions. Most show clinal changes in frequency between habitats, suggestive of divergent selection, but only one appears to be fixed for different arrangements in the two habitats. Consistent with widespread evidence for balancing selection on inversion polymorphisms, we argue that a combination of heterosis and divergent selection can explain the observed patterns and should be considered in other systems spanning environmental gradients.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- balancing selection
- Gastropoda
- inversion
- linkage disequilibrium
- local adaptation
- recombination
- reproductive isolation
- local adaptation
- gene flow
- crossing-over
- inversions
- evolution
- divergence
- recombination
- selection
- barrier
- Biochemistry & Molecular Biology
- Environmental Sciences & Ecology
- Evolutionary Biology
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Faria, R.
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Chaube, P.
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Morales, Hernán ...
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Larsson, Tomas
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Lemmon, A. R.
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Lemmon, E. M.
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show more...
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Rafajlović, Mari ...
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Panova, Marina, ...
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Ravinet, M.
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Johannesson, Ker ...
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Westram, A. M.
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Butlin, Roger, 1 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Oceanography Hyd ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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Molecular Ecolog ...
- By the university
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University of Gothenburg