Trans-generational plasticity in response to immune challenge is constrained by heat stress

Evolutionary Applications
Olivia Roth, Susanne H Landis

Abstract

Trans-generational plasticity (TGP) is the adjustment of phenotypes to changing habitat conditions that persist longer than the individual lifetime. Fitness benefits (adaptive TGP) are expected upon matching parent-offspring environments. In a global change scenario, several performance-related environmental factors are changing simultaneously. This lowers the predictability of offspring environmental conditions, potentially hampering the benefits of TGP. For the first time, we here explore how the combination of an abiotic and a biotic environmental factor in the parental generation plays out as trans-generational effect in the offspring. We fully reciprocally exposed the parental generation of the pipefish Syngnathus typhle to an immune challenge and elevated temperatures simulating a naturally occurring heatwave. Upon mating and male pregnancy, offspring were kept in ambient or elevated temperature regimes combined with a heat-killed bacterial epitope treatment. Differential gene expression (immune genes and DNA- and histone-modification genes) suggests that the combined change of an abiotic and a biotic factor in the parental generation had interactive effects on offspring performance, the temperature effect dominated over ...Continue Reading

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Citations

Sep 9, 2018·Nature Medicine·Michael K Skinner
Apr 20, 2021·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Katrina McGuiganCarla M Sgrò

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Methods Mentioned

BETA
histone acetylation
chips
PCR
Assay
acetylation

Software Mentioned

betadisper
nmle
PERMANOVA
vegan
Adonis
TGIP
PERMANOVAs
R
geNorm

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