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Local and regional scale habitat heterogeneity contribute to genetic adaptation in a commercially important marine mollusc (Haliotis rubra) from southeastern Australia.
Mol Ecol. 2019 06; 28(12):3053-3072.ME

Abstract

Characterising adaptive genetic divergence among conspecific populations is often achieved by studying genetic variation across defined environmental gradients. In marine systems this is challenging due to a paucity of information on habitat heterogeneity at local and regional scales and a dependency on sampling regimes that are typically limited to broad longitudinal and latitudinal environmental gradients. As a result, the spatial scales at which selection processes operate and the environmental factors that contribute to genetic adaptation in marine systems are likely to be unclear. In this study we explore patterns of adaptive genetic structuring in a commercially- harvested abalone species (Haliotis rubra) from southeastern Australia, using a panel of genome-wide SNP markers (5,239 SNPs), and a sampling regime informed by marine LiDAR bathymetric imagery and 20-year hindcasted oceanographic models. Despite a lack of overall genetic structure across the sampling distribution, significant genotype associations with heterogeneous habitat features were observed at local and regional spatial scales, including associations with wave energy, ocean current, sea surface temperature, and geology. These findings provide insights into the potential resilience of the species to changing marine climates and the role of migration and selection on recruitment processes, with implications for conservation and fisheries management. This study points to the spatial scales at which selection processes operate in marine systems and highlights the benefits of geospatially-informed sampling regimes for overcoming limitations associated with marine population genomic research.

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Publisher Full Text (DOI)

Authors+Show Affiliations

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia. Deakin Genomics Centre, Deakin University, Geelong, Victoria, Australia.

School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Victoria, Australia.

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia. Deakin Genomics Centre, Deakin University, Geelong, Victoria, Australia.

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia.

Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia.

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia.

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia.

Ierodiaconou DA

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia.

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia.

School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia. Deakin Genomics Centre, Deakin University, Geelong, Victoria, Australia.

MeSH

AcclimatizationAdaptation, PhysiologicalAnimalsAustraliaEcosystemGenetic VariationGenetics, PopulationGenomeGenomicsGenotypeMolluscaPolymorphism, Single NucleotidePopulation Dynamics

Pub Type(s)

Journal Article

Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

31077479

Citation

Miller, Adam D., et al. "Local and Regional Scale Habitat Heterogeneity Contribute to Genetic Adaptation in a Commercially Important Marine Mollusc (Haliotis Rubra) From Southeastern Australia." Molecular Ecology, vol. 28, no. 12, 2019, pp. 3053-3072.

Miller AD, Hoffmann AA, Tan MH, et al. Local and regional scale habitat heterogeneity contribute to genetic adaptation in a commercially important marine mollusc (Haliotis rubra) from southeastern Australia. Mol Ecol. 2019;28(12):3053-3072.

Miller, A. D., Hoffmann, A. A., Tan, M. H., Young, M., Ahrens, C., Cocomazzo, M., Rattray, A., Ierodiaconou, D. A., Treml, E., & Sherman, C. D. H. (2019). Local and regional scale habitat heterogeneity contribute to genetic adaptation in a commercially important marine mollusc (Haliotis rubra) from southeastern Australia. Molecular Ecology, 28(12), 3053-3072. https://doi.org/10.1111/mec.15128

Miller AD, et al. Local and Regional Scale Habitat Heterogeneity Contribute to Genetic Adaptation in a Commercially Important Marine Mollusc (Haliotis Rubra) From Southeastern Australia. Mol Ecol. 2019;28(12):3053-3072. PubMed PMID: 31077479.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Local and regional scale habitat heterogeneity contribute to genetic adaptation in a commercially important marine mollusc (Haliotis rubra) from southeastern Australia. AU - Miller,Adam D, AU - Hoffmann,Ary A, AU - Tan,Mun Hua, AU - Young,Mary, AU - Ahrens,Collin, AU - Cocomazzo,Michael, AU - Rattray,Alex, AU - Ierodiaconou,Daniel A, AU - Treml,Eric, AU - Sherman,Craig D H, Y1 - 2019/06/09/ PY - 2018/11/16/received PY - 2019/04/17/revised PY - 2019/05/01/accepted PY - 2019/5/12/pubmed PY - 2020/5/30/medline PY - 2019/5/12/entrez KW - LiDAR KW - abalone KW - environmental heterogeneity KW - fisheries management KW - genetic adaptation KW - hindcasted oceanographic models KW - marine conservation KW - population genomics SP - 3053 EP - 3072 JF - Molecular ecology JO - Mol Ecol VL - 28 IS - 12 N2 - Characterising adaptive genetic divergence among conspecific populations is often achieved by studying genetic variation across defined environmental gradients. In marine systems this is challenging due to a paucity of information on habitat heterogeneity at local and regional scales and a dependency on sampling regimes that are typically limited to broad longitudinal and latitudinal environmental gradients. As a result, the spatial scales at which selection processes operate and the environmental factors that contribute to genetic adaptation in marine systems are likely to be unclear. In this study we explore patterns of adaptive genetic structuring in a commercially- harvested abalone species (Haliotis rubra) from southeastern Australia, using a panel of genome-wide SNP markers (5,239 SNPs), and a sampling regime informed by marine LiDAR bathymetric imagery and 20-year hindcasted oceanographic models. Despite a lack of overall genetic structure across the sampling distribution, significant genotype associations with heterogeneous habitat features were observed at local and regional spatial scales, including associations with wave energy, ocean current, sea surface temperature, and geology. These findings provide insights into the potential resilience of the species to changing marine climates and the role of migration and selection on recruitment processes, with implications for conservation and fisheries management. This study points to the spatial scales at which selection processes operate in marine systems and highlights the benefits of geospatially-informed sampling regimes for overcoming limitations associated with marine population genomic research. SN - 1365-294X UR - https://www.unboundmedicine.com/medline/citation/31077479/Local_and_regional_scale_habitat_heterogeneity_contribute_to_genetic_adaptation_in_a_commercially_important_marine_mollusc__Haliotis_rubra__from_southeastern_Australia_ DB - PRIME DP - Unbound Medicine ER -