Genomic signatures of divergent selection are associated with social behaviour for spinner dolphin ecotypes

Andrews, Kimberly R.; Epstein, Brendan; Leslie, Matthew S.; Fiedler, Paul C.; Morin, Phillip A.; Hoelzel, A. Rus

doi:10.1111/mec.15865

Cited by 6 publications

(2 citation statements)

References 105 publications

(165 reference statements)

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“…(2016), implemented in pcadapt (Privé et al., 2020), which is based on the distribution of PCA loadings and identifies genes that contribute an unusually large weight to the PCA score. A recent example of local adaptation using pcadapt is from an analysis of spinner dolphin ecotypes which provides evidence of local adaptation in social behaviour (Andrews et al., 2021). This study compared several different approaches to identifying outliers, and also illustrated the use of enrichment analysis (also discussed below) for identifying networks of genes related to particular functions.…”

Section: Introductionmentioning

confidence: 99%

Genomics and conservation: Guidance from training to analyses and applications

Schiebelhut,

Guillaume,

Kuhn

et al. 2023

Molecular Ecology Resources

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Environmental change is intensifying the biodiversity crisis and threatening species across the tree of life. Conservation genomics can help inform conservation actions and slow biodiversity loss. However, more training, appropriate use of novel genomic methods and communication with managers are needed. Here, we review practical guidance to improve applied conservation genomics. We share insights aimed at ensuring effectiveness of conservation actions around three themes: (1) improving pedagogy and training in conservation genomics including for online global audiences, (2) conducting rigorous population genomic analyses properly considering theory, marker types and data interpretation and (3) facilitating communication and collaboration between managers and researchers. We aim to update students and professionals and expand their conservation toolkit with genomic principles and recent approaches for conserving and managing biodiversity. The biodiversity crisis is a global problem and, as such, requires international involvement, training, collaboration and frequent reviews of the literature and workshops as we do here.

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Section: Introductionmentioning

confidence: 99%

Genomics and conservation: Guidance from training to analyses and applications

Schiebelhut,

Guillaume,

Kuhn

et al. 2023

Molecular Ecology Resources

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“…In toothed whales (Odontoceti), most studies of adaptations using genomic markers have focused on a macroevolutionary perspective, while studies investigating ecological specialisation on a microevolutionary level have been documented only for a few species. This includes ecotype adaptations of killer whales (Orcinus orca [16]), spinner dolphins (Stenella longirostris [17]), finless porpoises (Neophocaena phocaenoides [18,19]), and bottlenose dolphins (Tursiops aduncus [20], and T. truncatus [21]). Despite these examples, population-level studies of microevolutionary processes remain highly under documented in Odontocetes, specifically in small cetaceans.…”

Section: Introductionmentioning

confidence: 99%

Seascape genomics of common dolphins (Delphinus delphis) reveals adaptive diversity linked to regional and local oceanography

et al. 2022

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Background High levels of standing genomic variation in wide-ranging marine species may enhance prospects for their long-term persistence. Patterns of connectivity and adaptation in such species are often thought to be influenced by spatial factors, environmental heterogeneity, and oceanographic and geomorphological features. Population-level studies that analytically integrate genome-wide data with environmental information (i.e., seascape genomics) have the potential to inform the spatial distribution of adaptive diversity in wide-ranging marine species, such as many marine mammals. We assessed genotype-environment associations (GEAs) in 214 common dolphins (Delphinus delphis) along > 3000 km of the southern coast of Australia. Results We identified 747 candidate adaptive SNPs out of a filtered panel of 17,327 SNPs, and five putatively locally-adapted populations with high levels of standing genomic variation were disclosed along environmentally heterogeneous coasts. Current velocity, sea surface temperature, salinity, and primary productivity were the key environmental variables associated with genomic variation. These environmental variables are in turn related to three main oceanographic phenomena that are likely affecting the dispersal of common dolphins: (1) regional oceanographic circulation, (2) localised and seasonal upwellings, and (3) seasonal on-shelf circulation in protected coastal habitats. Signals of selection at exonic gene regions suggest that adaptive divergence is related to important metabolic traits. Conclusion To the best of our knowledge, this represents the first seascape genomics study for common dolphins (genus Delphinus). Information from the associations between populations and their environment can assist population management in forecasting the adaptive capacity of common dolphins to climate change and other anthropogenic impacts.

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Sex and Behavior

Würsig,

Rich,

Orbach

2023

Sex in Cetaceans

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We provide a conceptual primer for sexual selection and conflict, mating systems, and socio-sexual behaviors and patterns among animals, largely with mammalian and cetacean examples. The important roles of mate choice are discussed (including female choice) and the occasional fluidity of sexual roles. An overview of topics pertinent to sex and behavior is described, including evolutionary drivers (the concept of “why sex after all?”) followed by general mammalian and cetacean mating strategies and tactics. We describe mating systems (monogamy, polygyny, polyandry, polygynandry) with the present understanding that most cetaceans do not have monogamous or polyandrous mating systems. The primer includes brief introductions to historical knowledge and highlights emerging areas of research within the field of sex in cetaceans, with context for other chapters of this book. As part of overall sexual behavior, alloparental care, female reproductive senescence, and non-procreative behaviors including homosexual and necrocoital mating are also introduced.

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Genomic signatures of divergent selection are associated with social behaviour for spinner dolphin ecotypes

Abstract: This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

Cited by 6 publications

References 105 publications

Genomics and conservation: Guidance from training to analyses and applications

Genomics and conservation: Guidance from training to analyses and applications

Seascape genomics of common dolphins (Delphinus delphis) reveals adaptive diversity linked to regional and local oceanography

Sex and Behavior

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