2020
DOI: 10.1111/jeb.13724
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Putative chromosomal rearrangements are associated primarily with ecotype divergence rather than geographic separation in an intertidal, poorly dispersing snail

Abstract: Littorina saxatilis is becoming a model system for understanding the genomic basis of ecological speciation. The parallel formation of crab-adapted ecotypes that exhibit partial reproductive isolation from wave-adapted ecotypes has enabled genomic investigation of conspicuous shell traits. Recent genomic studies suggest that chromosomal rearrangements may enable ecotype divergence by reducing gene flow. However, the genomic architecture of traits that are divergent between ecotypes remains poorly understood. H… Show more

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Cited by 5 publications
(9 citation statements)
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References 88 publications
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“…For example, mussels of the genus Mytilus form a complex system with multiple hybrid zones between various species that have been intensively studied (Bierne et al., 2003; Popovic et al., 2021; Simon et al., 2021). Another taxon that has become a model in the study of ecotype evolution and ecological speciation comprises the gastropods of the genus Littorina (Galindo et al., 2021; Johannesson, 2015; Kess et al., 2021; Stankowski et al., 2020; Westram et al., 2018). Some species of corals, seaweeds, seagrasses or sea squirts have also been important targets for studies focusing on genetic divergence and species evolution (Monteiro et al., 2016; Olsen et al., 2004; Pereyra et al., 2013; see also Hudson et al., 2021; Prada & Hellberg, 2021), as have a few species of microalgae and bacteria (Johnson et al., 2006).…”
Section: Diving Under the Surfacementioning
confidence: 99%
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“…For example, mussels of the genus Mytilus form a complex system with multiple hybrid zones between various species that have been intensively studied (Bierne et al., 2003; Popovic et al., 2021; Simon et al., 2021). Another taxon that has become a model in the study of ecotype evolution and ecological speciation comprises the gastropods of the genus Littorina (Galindo et al., 2021; Johannesson, 2015; Kess et al., 2021; Stankowski et al., 2020; Westram et al., 2018). Some species of corals, seaweeds, seagrasses or sea squirts have also been important targets for studies focusing on genetic divergence and species evolution (Monteiro et al., 2016; Olsen et al., 2004; Pereyra et al., 2013; see also Hudson et al., 2021; Prada & Hellberg, 2021), as have a few species of microalgae and bacteria (Johnson et al., 2006).…”
Section: Diving Under the Surfacementioning
confidence: 99%
“…Data recently gathered from some marine fish species support that inversions might play a central role in local adaptation, population divergence and potentially also speciation (Barth et al., 2019; Cayuela et al., 2020; Han et al., 2020; Le Moan et al., 2020). Notably, several large putative inversions recently detected in the marine snail Littorina saxatilis (Faria et al., 2019) are enriched for loci involved in divergence between ecotypes across the species’ distribution (Kess et al., 2021; Morales et al., 2019; Westram et al., 2018). Something similar could shape ecotype divergence in the related species L. fabalis (Galindo et al., 2021; Tatarenkov & Johannesson, 1999).…”
Section: Diving Under the Surfacementioning
confidence: 99%
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