Genetic and morphological divergence between Littorina fabalis ecotypes in Northern Europe

Autor: Juan Galindo, Marina Panova, João Carvalho, Petri Kemppainen, Mårten Duvetorp, Antigoni Kaliontzopoulou, Kerstin Johannesson, Rui Faria, Graciela Sotelo, Diana Soares da Costa
Přispěvatelé: Ecological Genetics Research Unit, Organismal and Evolutionary Biology Research Programme, Repositório da Universidade de Lisboa
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Male
parallel evolution
0106 biological sciences
0301 basic medicine
Snails
Littorina fabalis
adaptation
010603 evolutionary biology
01 natural sciences
GENOME-SCAN
Ecological speciation
flat periwinkles
03 medical and health sciences
shell morphology
ALLOZYME VARIATION
LOCAL ADAPTATION
Animals
POPULATION-STRUCTURE
14. Life underwater
geometrics–
Ecology
Evolution
Behavior and Systematics
Local adaptation
Ecotype
AFLPs
morphometrics
ECOLOGICAL SPECIATION
biology
Littorina
biology.organism_classification
Biological Evolution
2401.08 Genética Animal
Europe
Genetic divergence
Phylogeography
DIFFERENTIATION
030104 developmental biology
divergent natural selection
Evolutionary biology
1181 Ecology
evolutionary biology
Genetic structure
2409.03 Genética de Poblaciones
INTERTIDAL SNAIL
REPRODUCTIVE ISOLATION
Biological dispersal
2401.05 desarrollo Animal
Female
gene flow
MARINE
Zdroj: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Investigo. Repositorio Institucional de la Universidade de Vigo
Universidade de Vigo (UVigo)
Popis: Low dispersal marine intertidal species facing strong divergent selective pressures associated with steep environmental gradients have a great potential to inform us about local adaptation and reproductive isolation. Among these, gastropods of the genus Littorina offer a unique system to study parallel phenotypic divergence resulting from adaptation to different habitats related with wave exposure. In this study, we focused on two Littorina fabalis ecotypes from Northern European shores and compared patterns of habitat-related phenotypic and genetic divergence across three different geographic levels (local, regional and global). Geometric morphometric analyses revealed that individuals from habitats moderately exposed to waves usually present a larger shell size with a wider aperture than those from sheltered habitats. The phenotypic clustering of L. fabalis by habitat across most locations (mainly in terms of shell size) support an important role of ecology in morphological divergence. A genome scan based on amplified fragment length polymorphisms (AFLPs) revealed a heterogeneous pattern of differentiation across the genome between populations from the two different habitats, suggesting ecotype divergence in the presence of gene flow. The contrasting patterns of genetic structure between nonoutlier and outlier loci, and the decreased sharing of outlier loci with geographic distance among locations are compatible with parallel evolution of phenotypic divergence, with an important contribution of gene flow and/or ancestral variation. In the future, model-based inference studies based on sequence data across the entire genome will help unravelling these evolutionary hypotheses, improving our knowledge about adaptation and its influence on diversification within the marine realm Volkswagen Stiftung | Ref. 50500776 European Commission | Ref. 706376 European Marine Biological Resource Centre | Ref. 227799 Fundação para a Ciência e a Tecnologia | Ref. PTDC/BIA‐EVF/113805/2009 Fundação para a Ciência e a Tecnologia | Ref. PTDC/BIA‐EVL/30628/2017 Fundação para a Ciência e a Tecnologia | Ref. IF/00641/2014/CP1256/CT0008 Fundação para a Ciência e a Tecnologia | Ref. PD/BD/128350/2017 Ministerio de Ciencia, Innovación y Universidades | Ref. RTI2018- 101274-J-I00 Fundação para a Ciência e a | Ref. POCI-01-0145-FEDER-030628 European Regional Development Fund | Ref. FCOMP-01-0124-FEDER-014272
Databáze: OpenAIRE
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