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- W2327604493 abstract "AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections AB 18:253-260 (2013) - DOI: https://doi.org/10.3354/ab00508 Genetic variation of the shell morphology in Acanthina monodon (Gastropoda) in habitats with different wave exposure conditions Maribel R. Solas1, Roger D. Sepúlveda2, Antonio Brante1,* 1Departamento de Ecología, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Casilla 297, Concepción, Chile 2Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia, Chile *Corresponding author. Email: abrante@ucsc.cl ABSTRACT: Shell morphology in marine gastropods exhibits high intraspecific variability. Plasticity appears to be the most common response; however, additive genetic variance would explain a significant amount of morphological variance promoting local adaptations. The marine gastropod Acanthina monodon is a direct developer with a low dispersal potential and high variability in shell morphology. Previous studies suggest that adult shell morphology could have an adaptive value that responds to the degree of wave exposure. Given the low dispersal potential of A. monodon and the high temporal predictability of wave exposure conditions at the local scale, it was expected that selection would favour local adaptations with an important component of heritability. To test this hypothesis we estimated shell morphology heritability of A. monodon using pre-hatching juveniles from wave-exposed and wave-sheltered sites along the Chilean coast and using a geometric morphometrics approach. In addition, we compared shell morphology and size of pre-hatching juveniles between exposed and sheltered sites. Heritability of shell morphology was highly variable, ranging between 0.2 and 0.6 among sites. Shell morphology of pre-hatching individuals did not differ between exposed and sheltered conditions. These results suggest that the diversity of shell morphology in adults of A. monodon could be explained by a complex interaction between plastic and heritable responses. KEY WORDS: Additive genetic variance · Phenotypic plasticity · Geometric morphometrics · Snail · Shell shape · Body size Full text in pdf format PreviousNextCite this article as: Solas MR, Sepúlveda RD, Brante A (2013) Genetic variation of the shell morphology in Acanthina monodon (Gastropoda) in habitats with different wave exposure conditions. Aquat Biol 18:253-260. https://doi.org/10.3354/ab00508 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in AB Vol. 18, No. 3. Online publication date: June 04, 2013 Print ISSN: 1864-7782; Online ISSN: 1864-7790 Copyright © 2013 Inter-Research." @default.
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- W2327604493 title "Genetic variation of the shell morphology in Acanthina monodon (Gastropoda) in habitats with different wave exposure conditions" @default.
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