Functional divergence in heat shock response following rapid speciation of Fucus spp. in the Baltic Sea

Lago‐Lestón, Asunción; Mota, Catarina; Kautsky, Lena; Pearson, Gareth A.

doi:10.1007/s00227-009-1348-1

Cited by 21 publications

(25 citation statements)

References 28 publications

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“…In sand goby, a visual pigment has evolved by local adaptation to the stable but locally divergent light conditions in different parts of the Baltic Sea (Larmuseau et al 2010). Baltic populations of fucoid macroalgae have evolved clonality and decreased resistance to desiccation and temperature stress Pearson et al 2000;Lago-Leston et al 2010). Even regularly migrating species like herring show evidence of strong local adaptation among Baltic stocks (Gaggiotti et al 2009).…”

Section: Genetic Variation and Differentiation Of Baltic Populationsmentioning

confidence: 99%

The Future of Baltic Sea Populations: Local Extinction or Evolutionary Rescue?

Johannesson

Smolarz

Grahn

et al. 2011

AMBIO

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Environmental change challenges local and global survival of populations and species. In a speciespoor environment like the Baltic Sea this is particularly critical as major ecosystem functions may be upheld by single species. A complex interplay between demographic and genetic characteristics of species and populations determines risks of local extinction, chances of re-establishment of lost populations, and tolerance to environmental changes by evolution of new adaptations. Recent studies show that Baltic populations of dominant marine species are locally adapted, have lost genetic variation and are relatively isolated. In addition, some have evolved unusually high degrees of clonality and others are representatives of endemic (unique) evolutionary lineages. We here suggest that a consequence of local adaptation, isolation and genetic endemism is an increased risk of failure in restoring extinct Baltic populations. Additionally, restricted availability of genetic variation owing to lost variation and isolation may negatively impact the potential for evolutionary rescue following environmental change.

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Section: Genetic Variation and Differentiation Of Baltic Populationsmentioning

confidence: 99%

The Future of Baltic Sea Populations: Local Extinction or Evolutionary Rescue?

Johannesson

Smolarz

Grahn

et al. 2011

AMBIO

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“…We also omit studies dealing with two cryptic species (Oppliger et al 2012) or those that were confounded by other covarying environmental gradients. Therefore, studies from the Baltic Sea (Tatarenkov et al 2005, Lago-Lestón et al 2010 were not included due to the confounding salinity gradient that can invoke other distinct physiological ecotypes (Karsten 2012). Where studies examined more than one species, all species that met the suitability criteria were included to ensure that the broadest range of species could be explored.…”

Section: Literature Surveymentioning

confidence: 99%

The importance of phenotypic plasticity and local adaptation in driving intraspecific variability in thermal niches of marine macrophytes

et al. 2017

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Climate change is driving the redistribution of species at a global scale and documenting and predicting species' responses to warming is a principal focus of contemporary ecology. When interpreting and predicting their responses to warming, species are generally treated as single homogenous physiological units. However, local adaptation and phenotypic plasticity can result in intraspecific differences in thermal niche. Therefore, population loss may also not only occur from trailing edges. In species with low dispersal capacity this will have profound impacts for the species as a whole, as local population loss will not be offset by immigration of warm tolerant individuals. Recent evidence from terrestrial forests has shown that incorporation of intraspecific variation in thermal niche is vital to accurately predicting species responses to warming. However, marine macrophytes (i.e. seagrasses and seaweeds) that form some of the world's most productive and diverse ecosystems have not been examined in the same context. We conducted a literature review to determine how common intraspecific variation in thermal physiology is in marine macrophytes. We find that 90% of studies identified (n = 42) found clear differences in thermal niche between geographically separated populations. Therefore, non-trailing edge populations may also be vulnerable to future warming trends and given their limited dispersal capacity, such population loss may not be offset by immigration. We also explore how next generation sequencing (NGS) is allowing unprecedented mechanistic insight into plasticity and adaptation. We conclude that in the 'genomic era' it may be possible to link understanding of plasticity and adaptation at the genetic level through to changes in populations providing novel insights on the redistribution of populations under future climate change.

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“…However, the impact of various factors simultaneously cannot be additive. For example, in Fucus from the Baltic Sea stress proteins were up-regulated after thermal stress, which was not modified by the simultaneous exposure to high light or desiccation (Lago-Leston et al, 2010). Overall, recent studies appear to indicate that under multiple stress conditions, the same suite of stress protein genes can be up-regulated in response to different stressors as has been postulated for some species of Fucus (Pearson et al, 2010).…”

Section: Interactive Effects Of Multiple Stress Factorsmentioning

confidence: 75%

Stress proteins and auxiliary anti stress compounds in intertidal macroalgae

Cruces

Huovinen

Gómez

2012

lajar

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ABSTRACT. Intertidal macroalgae are exposed to strong variation in the physical environment and thus, diverse anti-stress mechanisms are displayed by these organisms. Stress proteins (also called heat shock proteins, HSPs) have been invoked as potential protective mechanism, especially during stressful action of temperature and solar radiation. Therefore, macroalgae have not normally been used as model organisms in studies of these molecules. The present study compiles the existing information from intertidal species in the context of major factors that have been reported to induce them, e.g. temperature, enhanced solar radiation, contaminants, etc. Additionally, in order to address the question whether the expression of these proteins operates in intertidal macroalgae complementarily with other protective mechanisms, a case study of induction of HSPs after exposure to UV radiation and high temperature in two upper littoral species, Ulva sp. and Porphyra columbina, from southern Chile is presented. In parallel, two well-known responses to stress, photoinhibition of photochemical reactions (F v /F m ) and ROS scavenging were measured. The results indicated that, although stress proteins were detected in a time span between 3 and 24 h, the responses were not correlated with photochemical and antioxidative response. Overall, the study outlines a potential role of stress proteins in ecophysiological responses developed to cope mainly with high temperature and UV radiation. However, other rapid metabolic adjustments (e.g. high thermo-tolerance of photosynthesis and efficient ROS scavenging), together with other biomolecules (mycosporines, phenols, polyamines, etc.) and morphofunctional adaptations to the intertidal life (e.g. small size, high area/volume ratio) are also important. Keywords: stress proteins, intertidal macroalgae, photosynthesis, ROS, UV radiation, photoprotection. Proteínas de estrés y compuestos anti-estrés auxiliares en algas marinas intermarealesRESUMEN. Las macroalgas marinas intermareales están expuestas a extrema variación en las condiciones ambientales y por ello desarrollan una serie de mecanismos anti-estrés. Las proteínas de estrés (HSPs) han sido consideradas como potenciales agentes protectores en respuesta a condiciones estresantes, especialmente durante la acción de elevada temperatura y alta radiación solar. Considerando que las macroalgas marinas no han sido usadas comúnmente como modelos de estudio para analizar estas moléculas, el presente trabajo compila la información existente sobre la inducción de proteínas de estrés en algas intermareales en el contexto de los principales factores hasta ahora reportados como inductores, e.g. temperatura, alta radiación solar, contaminantes, etc. Adicionalmente, mediante un estudio de caso usando dos especies del intermareal superior, Ulva sp. y Porphyra columbina colectadas en el sur de Chile, se examina si la inducción de proteínas de estrés ocurre de forma complementaria con otras respuestas anti-stress. Para ello, dos mecanismos bien conocid...

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Functional divergence in heat shock response following rapid speciation of Fucus spp. in the Baltic Sea

Abstract: In the Baltic Sea, the broadly distributed brown alga Fucus vesiculosus coexists in sympatry over part of its range (south west Gulf of Bothnia)

Cited by 21 publications

References 28 publications

The Future of Baltic Sea Populations: Local Extinction or Evolutionary Rescue?

The Future of Baltic Sea Populations: Local Extinction or Evolutionary Rescue?

The importance of phenotypic plasticity and local adaptation in driving intraspecific variability in thermal niches of marine macrophytes

Stress proteins and auxiliary anti stress compounds in intertidal macroalgae

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