Present and Future Adaptation of Marine Species Assemblages: DNA-Based Insights into Climate Change from Studies of Physiology, Genomics, and Evolution

Palumbi, Stephen R.; Evans, Tyler G.; Pespeni, Melissa H.; Somero, George N.

doi:10.5670/oceanog.2019.314

Cited by 31 publications

(26 citation statements)

References 56 publications

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“…While studies in the field of marine ecological population genetics widely reported that local adaptation plays an important role in shaping the genetic structure of populations in marine habitats (e.g. Billerbeck, Schultz, & Conover, 2000; Pespeni & Palumbi, 2013), much remains to be done towards deciphering the genomic basis underlying local adaptation in marine ecosystems (see reviews by Bernatchez, 2016; Grummer et al., 2019; Palumbi, Tyler, Pespeni, & Somero, 2019). Marine species can represent an excellent model for studying adaptive genetic variation due to their generally large effective population size combined with high dispersal abilities resulting in high gene flow and minimal imprint of genetic drift (Gagnaire et al., 2015; Palumbi, 1992; Tigano & Friesen, 2016).…”

Section: Introductionmentioning

confidence: 99%

Copy number variants outperform SNPs to reveal genotype–temperature association in a marine species

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Copy number variants outperform SNPs to reveal genotype–temperature association in a marine species

et al. 2020

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“…Local adaptation has been extensively studied in terrestrial landscapes and freshwater environments (Salvolainen et al 2013;Manel & Holderegger, 2013). Although many recent studies have reported that local adaptation plays a major role in shaping populations in marine habitats, much remains to be done toward deciphering the genomic bases underlying local adaptation in marine species (see reviews by Bernatchez 2016;Grummer et al 2019;Palumbi et al, 2019). In fact, understanding how local adaptation unfolds has been particularly challenging in marine species due to their generally large effective population size combined with high dispersal ability resulting in high gene flow and weak population structure as well as the complex biophysical environments found in oceans (Carr et al, 2003, Selkoe et al, 2008.…”

Section: Introductionmentioning

confidence: 99%

Copy number variants outperform SNPs to reveal genotype-temperature association in a marine species

Dorant

Cayuela

Wellband

et al. 2020

Preprint

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Copy number variants (CNVs) are a major component of genotypic and phenotypic variation in genomes. Yet, our knowledge on genotypic variation and evolution is often limited to single nucleotide polymorphism (SNPs) and the role of CNVs has been overlooked in non-model species, partly due to their challenging identification until recently. Here, we document the usefulness of reducedrepresentation sequencing data (RAD-seq) to detect and investigate copy number variants (CNVs) alongside SNPs in American lobster (Homarus americanus) populations. We conducted a comparative study to examine the potential role of SNPs and CNVs in local adaptation by sequencing 1141 lobsters from 21 sampling sites within the southern Gulf of St. Lawrence which experiences the highest yearly thermal variance of the Canadian marine coastal waters. Our results demonstrated that CNVs accounts for higher genetic differentiation than SNP markers. Contrary to SNPs for which no association was found, genetic-environment association revealed that 48 CNV candidates were significantly associated with the annual variance of sea surface temperature, leading to the genetic clustering of sampling locations despite their geographic separation. Altogether, we provide a strong empirical case that CNVs putatively contribute to local adaptation in marine species and unveil stronger spatial signal than SNPs.Our study provides the means to study CNVs in non-model species and underlines the importance to consider structural variants alongside SNPs to enhance our understanding of ecological and evolutionary processes shaping adaptive population structure.

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“…For example, a decrease in macroalgae taxa and increase in anthozoans with warmer temperatures would not only change the current dominant habitat-forming species but also would impact food provisioning for a number of coastal benthic and pelagic organisms (Andrades et al, 2019;Mazzuco et al, 2019). These transitional intertidal communities may respond to temperature with varying levels of relisience depending on their structure and dynamics (Bernhardt & Leslie, 2013;Timpane-Padgham, Beechie & Klinger, 2017;Palumbi et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Substrate rugosity and temperature matters: patterns of benthic diversity at tropical intertidal reefs in the SW Atlantic

Mazzuco

Stelzer

Bernardino

2020

PeerJ

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Modeling and forecasting ocean ecosystems in a changing world will require advances in observational efforts to monitor marine biodiversity. One of the observational challenges in coastal reef ecosystems is to quantify benthic and climate interactions which are key to community dynamics across habitats. Habitat complexity (i.e., substrate rugosity) on intertidal reefs can be an important variable explaining benthic diversity and taxa composition, but the association between substrate and seasonal variability is poorly understood on lateritic reefs in the South Atlantic. We asked if benthic assemblages on intertidal reefs with distinct substrate rugosity would follow similar seasonal patterns of succession following meteo-oceanographic variability in a tropical coastal area of Brazil. We combined an innovative 3D imaging for measuring substrate rugosity with satellite monitoring to monitor spatio-temporal patterns of benthic assemblages. The dataset included monthly in situ surveys of substrate cover and taxon diversity and richness, temporal variability in meteo-oceanographic conditions, and reef structural complexity from four sites on the Eastern Marine Ecoregion of Brazil. Additionally, correlation coefficients between temperature and both benthic diversity and community composition from one year of monitoring were used to project biodiversity trends under future warming scenarios. Our results revealed that benthic diversity and composition on intertidal reefs are strongly regulated by surface rugosity and sea surface temperatures, which control the dominance of macroalgae or corals. Intertidal reef biodiversity was positively correlated with reef rugosity which supports previous assertions of higher regional intertidal diversity on lateritic reefs that offer increased substrate complexity. Predicted warming temperatures in the Eastern Marine Ecoregion of Brazil will likely lead to a dominance of macroalgae taxa over the lateritic reefs and lower overall benthic diversity. Our findings indicate that rugosity is not only a useful tool for biodiversity mapping in reef intertidal ecosystems but also that spatial differences in rugosity would lead to very distinct biogeographic and temporal patterns. This study offers a unique baseline of benthic biodiversity on coastal marine habitats that is complementary to worldwide efforts to improve monitoring and management of coastal reefs.

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Present and Future Adaptation of Marine Species Assemblages: DNA-Based Insights into Climate Change from Studies of Physiology, Genomics, and Evolution

Abstract: Present and future adaptation of marine species assemblages: DNA-based insights into climate change from studies of physiology, genomics, and evolution.

Cited by 31 publications

References 56 publications

Copy number variants outperform SNPs to reveal genotype–temperature association in a marine species

Copy number variants outperform SNPs to reveal genotype–temperature association in a marine species

Copy number variants outperform SNPs to reveal genotype-temperature association in a marine species

Substrate rugosity and temperature matters: patterns of benthic diversity at tropical intertidal reefs in the SW Atlantic

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