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Similarities in temperature‐dependent gene expression plasticity across timescales in threespine stickleback (Gasterosteus aculeatus)

Metzger, David C. H. ; Schulte, Patricia M.

Molecular ecology, 2018-05, Vol.27 (10), p.2381-2396 [Periódico revisado por pares]

England: Blackwell Publishing Ltd

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Título:
Similarities in temperature‐dependent gene expression plasticity across timescales in threespine stickleback (Gasterosteus aculeatus)
Autor: Metzger, David C. H. ; Schulte, Patricia M.
Assuntos: Acclimation ; Acclimatization ; Adults ; Analogies ; Animals ; Cluster Analysis ; Deoxyribonucleic acid ; Developmental plasticity ; Developmental stages ; DNA ; DNA methylation ; Epigenetics ; Epigenomics ; Gasterosteus aculeatus ; Gene expression ; Gene Expression Regulation ; Genes ; Molecular chains ; Muscles ; Phenotype ; Phenotypic plasticity ; Plastic properties ; Plasticity ; RNA‐seq ; Sequence Alignment ; Smegmamorpha - genetics ; Smegmamorpha - growth & development ; Temperature ; Temperature dependence ; Temperature effects ; Trajectory analysis ; Transcriptome ; transcriptomics
É parte de: Molecular ecology, 2018-05, Vol.27 (10), p.2381-2396
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SourceType-Scholarly Journals-1
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Descrição: Phenotypic plasticity occurs at a variety of timescales, but little is known about the degree to which plastic responses at different timescales are associated with similar underlying molecular processes, which is critical for assessing the effects of plasticity on evolutionary trajectories. To address this issue, we identified differential gene expression in response to developmental temperature in the muscle transcriptome of adult threespine stickleback (Gasterosteus aculeatus) exposed to 12, 18 and 24°C until hatch and then held at 18°C for 9 months and compared these results to differential gene expression in response to adult thermal acclimation in stickleback developed at 18°C and then acclimated to 5 and 25°C as adults. Adult thermal acclimation affected the expression of 7,940 and 7,015 genes in response to cold and warm acclimation, respectively, and 4,851 of these genes responded in both treatments. In contrast, the expression of only 33 and 29 genes was affected by cold and warm development, respectively. The majority of the genes affected by developmental temperature were also affected by adult acclimation temperature. Many genes that were differentially expressed as a result of adult acclimation were associated with previously identified temperature‐dependent effects on DNA methylation patterns, suggesting a role of epigenetic mechanisms in regulating gene expression plasticity during acclimation. Taken together, these results demonstrate similarities between the persistent effects of developmental plasticity on gene expression and the effects of adult thermal acclimation, emphasizing the potential for mechanistic links between plasticity acting at these different life stages.
Editor: England: Blackwell Publishing Ltd
Idioma: Inglês

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Similarities in temperature‐dependent gene expression plasticity across timescales in threespine stickleback (Gasterosteus aculeatus)

Metzger, David C. H. ; Schulte, Patricia M.

England: Blackwell Publishing Ltd

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