An allozyme polymorphism is associated with a large chromosomal inversion in the marine snail <i>Littorina fabalis</i>

Moan, Alan Le; Panova, Marina; Jode, Aurélien De; Ortega‐Martinez, Olga; Duvetorp, Mårten; Faria, Rui; Butlin, Roger K.; Johannesson, Kerstin

doi:10.1111/eva.13427

Cited by 7 publications

(9 citation statements)

References 86 publications

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“…saxatilis (Westram et al, 2018 ) and the closely related L . fabalis (see Le Moan, et al, 2022 ). At the same time, other barriers, such as assortative mating and intrinsic genetic incompatibilities seem to play minor roles (Johannesson et al, 2020 ; Perini et al, 2020 ).…”

Section: Cemeb Scientific Highlightsmentioning

confidence: 98%

Ten years of marine evolutionary biology—Challenges and achievements of a multidisciplinary research initiative

Johannesson

Leder

André

et al. 2023

Evolutionary Applications

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The Centre for Marine Evolutionary Biology (CeMEB) at the University of Gothenburg, Sweden, was established in 2008 through a 10‐year research grant of 8.7 m€ to a team of senior researchers. Today, CeMEB members have contributed >500 scientific publications, 30 PhD theses and have organised 75 meetings and courses, including 18 three‐day meetings and four conferences. What are the footprints of CeMEB, and how will the centre continue to play a national and international role as an important node of marine evolutionary research? In this perspective article, we first look back over the 10 years of CeMEB activities and briefly survey some of the many achievements of CeMEB. We furthermore compare the initial goals, as formulated in the grant application, with what has been achieved, and discuss challenges and milestones along the way. Finally, we bring forward some general lessons that can be learnt from a research funding of this type, and we also look ahead, discussing how CeMEB’s achievements and lessons can be used as a springboard to the future of marine evolutionary biology.

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Section: Cemeb Scientific Highlightsmentioning

confidence: 98%

Ten years of marine evolutionary biology—Challenges and achievements of a multidisciplinary research initiative

Johannesson

Leder

André

et al. 2023

Evolutionary Applications

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“…Early genetic work found sharp allele frequency differences at the arginine kinase locus ( Ak ) along the environmental cline between these ecotypes (Tatarenkov & Johannesson, 1994 , 1998 ). Using whole‐genome sequencing, Le Moan et al ( 2022 ) revisited this historically studied system to increase our understanding of the Ak variation and its relationship to the divergence between the two ecotypes. Le Moan et al ( 2022 ) not only found nine nonsynonymous substitutions, which were a perfect fit to the different migration patterns of the Ak alleles, but also discovered that the Ak alleles were located on different arrangements of a putative chromosomal inversion.…”

Section: Overview Of the Issuementioning

confidence: 99%

“…One major topic studied within the Marine Evolutionary Biology community is the interplay between genetic and plastic mechanisms in the processes of local adaptation, ecotype formation, and speciation, and how these processes may be impacted by, e.g., sexual selection, individuals' dispersal patterns, or species‐specific genomic properties, such as the size and distribution of chromosomal rearrangements (e.g., Faria et al, 2021 ; Ravinet et al, 2017 ). Herein, these processes are addressed in diverse empirical model systems ranging from diatoms to mollusks and fish (Green et al, 2022 ; Le Moan et al, 2022 ; Sefbom et al, 2022 ; Zhang et al, 2022 ), as well as in silico in two theoretical modeling studies (Eriksson et al, 2022 ; Marshall & Connallon, 2022 ). The link between genotype and phenotype is also the focus of several empirical studies here (Gefaell et al, 2022 ; Stenger et al, 2022 ; Walker et al, 2022 ), as is the seascape genomics of a wide range of taxa (Delaval, Bendall, et al, 2022 ; Delaval, Frost, et al, 2022 ; Fitz et al, 2022 ; Lapègue et al, 2022 ; Matias et al, 2022 ; Palumbi et al, 2022 ; Pampoulie et al, 2022 ), which has important implications for management of marine resources.…”

Section: Introductionmentioning

confidence: 99%

A decade of progress in marine evolutionary biology

Wit

Faust

Green

et al. 2022

Evolutionary Applications

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This article summarizes the Evolutionary Applications Special Issue, “A decade of progress in Marine Evolutionary Biology.” The globally connected ocean, from its pelagic depths to its highly varied coastlines, inspired Charles Darwin to develop the theory of evolution during the voyage of the Beagle. As technology has developed, there has been a dramatic increase in our knowledge about life on our blue planet. This Special Issue, composed of 19 original papers and seven reviews, represents a small contribution to the larger picture of recent research in evolutionary biology, and how such advancements come about through the connection of researchers, their fields, and their knowledge. The first European network for marine evolutionary biology, the Linnaeus Centre for Marine Evolutionary Biology (CeMEB), was developed to study evolutionary processes in the marine environment under global change. Though hosted by the University of Gothenburg in Sweden, the network quickly grew to encompass researchers throughout Europe and beyond. Today, more than a decade after its foundation, CeMEB's focus on the evolutionary consequences of global change is more relevant than ever, and knowledge gained from marine evolution research is urgently needed in management and conservation. This Special Issue, organized and developed through the CeMEB network, contains contributions from all over the world and provides a snapshot of the current state of the field, thus forming an important basis for future research directions.

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“…Marine snails of the genus Littorina are emerging models for studying the role of chromosomal inversions in speciation 21,23,24 . Littorina includes several species that form ecotypes that differ in multiple phenotypic traits (including shell size, shell morphology, and behaviour).…”

Section: Introductionmentioning

confidence: 99%

Coupling of 12 chromosomal inversions maintains a strong barrier to gene flow between ecotypes

Moan,

Stankowski,

Rafajlovic

et al. 2023

Preprint

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Chromosomal rearrangements lead to the coupling of reproductive barriers, but whether and how they contribute to completion of speciation remains unclear. Marine snails of the genusLittorinarepeatedly form hybrid zones between taxa segregating for inversion arrangements, providing opportunities to study this question. Here, we analysed two adjacent transects across hybrid zones between large and dwarf ecotypes ofLittorina fabaliscovering wave exposure gradients in a Swedish island. Applying whole-genome sequences we found 12 putative inversions reaching near differential fixation between the opposite ends of each transect, and being in strong linkage disequilibrium. These inversions cover 20% of the genome and carry 93% of divergent SNPs. Bimodal hybrid zones in both transects indicate that the two ecotypes ofLittorina fabalismaintain their genetic and phenotypic integrity following contact due to strong coupling between inversion clines that strengthened the reproductive barrier. The bimodality resulting from the linked inversions extends into collinear parts of the genome, suggesting a genome-wide coupling. Demographic inference suggests that the coupling built up during a period of allopatry, and has been maintained for more than 1K generations after secondary contact. Overall, this study shows that the coupling of multiple chromosomal inversions contributes to strong reproductive isolation. Importantly, two of the inversions overlap with inverted genomic regions associated with ecotype differences in a closely-related species (L. saxatilis), suggesting the same regions, with similar structural variants, repeatedly contribute to ecotype evolution in distinct species.

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An allozyme polymorphism is associated with a large chromosomal inversion in the marine snail Littorina fabalis

Cited by 7 publications

References 86 publications

Ten years of marine evolutionary biology—Challenges and achievements of a multidisciplinary research initiative

Ten years of marine evolutionary biology—Challenges and achievements of a multidisciplinary research initiative

A decade of progress in marine evolutionary biology

Coupling of 12 chromosomal inversions maintains a strong barrier to gene flow between ecotypes

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