RNA-seq analyses of cellular responses to elevated body temperature in the high Antarctic cryopelagic nototheniid fish Pagothenia borchgrevinki

Bilyk, Kevin T.; Cheng, C.‐H. Christina

doi:10.1016/j.margen.2014.06.006

Cited by 45 publications

(51 citation statements)

References 48 publications

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“…In most cases only heat shock response, particularly expression of HSP70, was in - vestigated and absence of HSP up-regulation was detected. However, recent full transcriptome profiling in the nototheniid fish Pagothenia borchgrevinki showed that the stress response even to a small temperature increase includes a low-magnitude down-regulation of many genes including hsps (Bilyk & Cheng 2014). Similar down-regulation of several genes (dnaja1, hsp60, hsp70_3 and gdh) at 10 compared to 5°C after LTS was detected in C. glacialis using qPCR.…”

Section: Lack Of Thermal Stress Response In C Glacialismentioning

confidence: 86%

“…Similar down-regulation of several genes (dnaja1, hsp60, hsp70_3 and gdh) at 10 compared to 5°C after LTS was detected in C. glacialis using qPCR. The lack of cellular stress response in Antarctic species is due to adaptation and specialization to stably cold Antarctic waters (Clark et al 2008, Bilyk & Cheng 2014. Although environmental conditions in the Arctic Ocean are more variable then in the Antarctic (Clarke & Peck 1991), and the lack of cellular stress response has not been reported in Arctic species, the lack of thermal stress response in C. glacialis may be explained by cold-water specialization.…”

Section: Lack Of Thermal Stress Response In C Glacialismentioning

confidence: 99%

“…HSPs protect damaged proteins from aggregation, unfold aggregated proteins and refold damaged proteins or target them for efficient degradation (Verghese et al 2012), thereby stabilizing the functioning of the organism under elevated temperature and increasing its thermal tolerance range (Feder & Hofmann 1999). Despite the universality of the heat shock response, species adapted to extremely stable and cold environments, such as several Antarctic invertebrates and notothenioid fishes, appear to lack the ability of HSP up-regulation (Bilyk & Cheng 2014).…”

Section: Introductionmentioning

confidence: 99%

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Contrasting transcriptome response to thermal stress in two key zooplankton species, Calanus finmarchicus and C. glacialis

Smolina¹,

Kollias²,

Møller³

et al. 2015

Mar. Ecol. Prog. Ser.

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Climate change has already led to the range expansion of warm-water plankton assemblages in the northeast Atlantic and the corresponding range contraction of colder-water species. The temperate copepod Calanus finmarchicus is predicted to shift farther northward into polar waters traditionally dominated by the arctic copepod C. glacialis. To identify temperaturemediated changes in gene expression that may be critical for the thermal acclimation and resilience of the 2 Calanus spp., we conducted a whole transcriptome profiling using RNA-seq on an Ion Torrent platform. Transcriptome responses of C. finmarchicus and C. glacialis from Disko Bay, west Greenland, were investigated under realistic thermal stresses (at + 5, +10 and +15°C) for 4 h and 6 d. C. finmarchicus showed a strong response to temperature and duration of stress, involving up-regulation of genes related to protein folding, transcription, translation and metabolism. In sharp contrast, C. glacialis displayed only low-magnitude changes in gene expression in response to temperature and duration of stress. Differences in the thermal responses of the 2 species, particularly the lack of thermal stress response in C. glacialis, are in line with laboratory and field observations and suggest a vulnerability of C. glacialis to climate change.

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Section: Lack Of Thermal Stress Response In C Glacialismentioning

confidence: 86%

Section: Lack Of Thermal Stress Response In C Glacialismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Contrasting transcriptome response to thermal stress in two key zooplankton species, Calanus finmarchicus and C. glacialis

Smolina¹,

Kollias²,

Møller³

et al. 2015

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Recent studies have attempted to elucidate the strategies responsible for various abiotic stresses in plants such as hybrids of Hordeum vulgare L. x Saccharum spp. (Janska et al, 2013;Guo et al, 2014), fish such as Pangasianodon hypophthalmus and Pagothenia borchgrevinki (Thanh et al, 2014;Bilyk and Cheng, 2014), and molluscs such as Mytilus galloprovincialis (Lockwood et al, 2010;Lockwood and Somero, 2011) and Pomacea canaliculata (Sun et al, 2012). As invasive species rapidly spread and successfully colonized throughout varying environments, they offer a great opportunity to study the causes and consequences of adaptability to rapidly changing environments.…”

Section: Introductionmentioning

confidence: 99%

Reference gene selection for quantitative gene expression studies during biological invasions: A test on multiple genes and tissues in a model ascidian Ciona savignyi

Huang

Gao

Jiang

et al. 2016

Gene

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“…It is well beyond the limits of our review to cover this emergent area of research; therefore, we provide a number of recent references for further reading Bilyk and Cheng, 2013;Coppe et al, 2013;Marino et al, 2013;Rizzello et al, 2013;Bilyk and Cheng, 2014). While these studies lend a great deal of insight into the molecular underpinnings of notothenioid physiology, it is important to incorporate these findings with functional studies including posttranslational modification analyses to obtain a comprehensive understanding of biochemical traits in these fish.…”

Section: Integration Across Subdisciplinesmentioning

confidence: 99%

Antarctic notothenioid fish: what are the future consequences of ‘losses’ and ‘gains’ acquired during long-term evolution at cold and stable temperatures?

Beers

Jayasundara

2015

Journal of Experimental Biology

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Antarctic notothenioids dominate the fish fauna of the Southern Ocean. Evolution for millions of years at cold and stable temperatures has led to the acquisition of numerous biochemical traits that allow these fishes to thrive in sub-zero waters. The gain of antifreeze glycoproteins has afforded notothenioids the ability to avert freezing and survive at temperatures often hovering near the freezing point of seawater. Additionally, possession of cold-adapted proteins and membranes permits them to sustain appropriate metabolic rates at exceptionally low body temperatures. The notothenioid genome is also distinguished by the disappearance of traits in some species, losses that might prove costly in a warmer environment. Perhaps the best-illustrated example is the lack of expression of hemoglobin in white-blooded icefishes from the family Channichthyidae. Loss of key elements of the cellular stress response, notably the heat shock response, has also been observed. Along with their attainment of cold tolerance, notothenioids have developed an extreme stenothermy and many species perish at temperatures only a few degrees above their habitat temperatures. Thus, in light of today's rapidly changing climate, it is critical to evaluate how these extreme stenotherms will respond to rising ocean temperatures. It is conceivable that the remarkable cold specialization of notothenioids may ultimately leave them vulnerable to future thermal increases and threaten their fitness and survival. Within this context, our review provides a current summary of the biochemical losses and gains that are known for notothenioids and examines these cold-adapted traits with a focus on processes underlying thermal tolerance and acclimation capacity.

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RNA-seq analyses of cellular responses to elevated body temperature in the high Antarctic cryopelagic nototheniid fish Pagothenia borchgrevinki

Cited by 45 publications

References 48 publications

Contrasting transcriptome response to thermal stress in two key zooplankton species, Calanus finmarchicus and C. glacialis

Contrasting transcriptome response to thermal stress in two key zooplankton species, Calanus finmarchicus and C. glacialis

Reference gene selection for quantitative gene expression studies during biological invasions: A test on multiple genes and tissues in a model ascidian Ciona savignyi

Antarctic notothenioid fish: what are the future consequences of ‘losses’ and ‘gains’ acquired during long-term evolution at cold and stable temperatures?

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