Insights into the genetic basis of predator-induced response in<i>Daphnia galeata</i>

Tams, Verena; Nickel, Jana; Ehring, Anne; Cordellier, Mathilde

doi:10.1101/503904

Cited by 7 publications

(10 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These antipredator responses lead to systemic changes in gene expression and morphology (Tams et al 2019), which are controlled in part by fish traits (e.g., production of a scent cue). These scents can themselves be variable and genetic, as illustrated by differences in how Daphnia respond to cues from landlocked versus anadromous alewife (Walsh and Post 2011).…”

mentioning

confidence: 99%

Interacting phenotypes and the coevolutionary process: Interspecific indirect genetic effects alter coevolutionary dynamics

et al. 2022

View full text Add to dashboard Cite

Coevolution occurs when species interact to influence one another's fitness, resulting in reciprocal evolutionary change. In many coevolving lineages, trait expression in one species is modified by the genotypes and phenotypes of the other, forming feedback loops reminiscent of models of intraspecific social evolution. Here, we adapt the theory of within-species social evolution, characterized by indirect genetic effects and social selection imposed by interacting individuals, to the case of interspecific interactions. In a trait-based model, we derive general expressions for multivariate evolutionary change in two species and the expected betweenspecies covariance in evolutionary change when selection varies across space. We show that reciprocal interspecific indirect genetic effects can dominate the coevolutionary process and drive patterns of correlated evolution beyond what is expected from direct selection alone. In extreme cases, interspecific indirect genetic effects can lead to coevolution when selection does not covary between species or even when one species lacks genetic variance. Moreover, our model indicates that interspecific indirect genetic effects may interact in complex ways with cross-species selection to determine the course of coevolution. Importantly, our model makes empirically testable predictions for how different forms of reciprocal interactions contribute to the coevolutionary process.

show abstract

mentioning

confidence: 99%

Interacting phenotypes and the coevolutionary process: Interspecific indirect genetic effects alter coevolutionary dynamics

et al. 2022

View full text Add to dashboard Cite

show abstract

“…When looking closer to the functional analysis of candidates from WGCNA, we can highlight hubgenes of modules with biological functions that are involved in predator-induced responses, according to the predation risk experiments in Tams, Nickel, Ehring, and Cordellier (2018). Growth-related GO terms, such as 'chitin binding' and 'chitin metabolic process', were identified for the 'turquoise' hubgene (3,017 transcripts), whereas the GO term 'structural constituent of cuticle' was identified for the hubgenes 'paleturquoise' (222 transcripts) and 'darkgreen' (371 transcripts).…”

Section: Functional Analysismentioning

confidence: 99%

“…galeata (Tams, Nickel, et al, 2018). However, this needs to be verified, for example by differential gene expression and gene co-expression analysis of all 24 clonal lines exposed to fish kairomones.…”

Section: Functional Analysismentioning

confidence: 99%

Transcriptome‐wide genotype–phenotype associations in Daphnia in a predation risk environment

Ravindran

Tams

Cordellier

2020

J of Evolutionary Biology

Self Cite

View full text Add to dashboard Cite

Phenotypic variation plays an important role in how species cope with environmental challenges. Pinpointing which genes and genomic regions are underlying phenotypic variability thus helps to understand the processes of acclimation and adaptation. We used Daphnia as a system to identify candidates playing a role in phenotypic variation related to a predation risk environment with a genome‐wide association approach. Furthermore, a gene co‐expression network analysis allowed identifying clusters of co‐expressed genes which correlated to life history traits. To enhance the understanding of the functional roles of the transcripts, we identified orthologs and paralogs from related species and used ontologies to annotate the candidates of interest. Our study revealed that only one life history trait and two morphometric traits have a genetic association in the presence of predation risk (fish kairomones), whereas most genotype–phenotype associations were detected in a genotype–environment interaction analysis for reproduction‐related phenotypic traits. The gene co‐expression network analysis identified a total of 44 modules, of which one module correlated to another life history trait namely the ‘total number of broods’. The combined use of gene co‐expression network and transcriptome‐wide association analysis allowed the identification of 131 candidate transcripts associated with life history traits in Daphnia galeata. These results lay the ground for targeted studies to further understand phenotypic variability in this species.

show abstract

“…Approximately one-third of Daphnia magna genes, especially those relating to metabolism, cell signalling and general stress response, are involved in early transcriptional response to environmental stress, including predation-related stress [10]. Another recent study showed that transcripts involved in remodelling of the cuticle, growth and digestion were associated with the response to predation risk in Daphnia galeata [11]. However, a comprehensive understanding of the genetic basis of responses of Daphnia species to predation is still lacking.…”

Section: Introductionmentioning

confidence: 99%

Genomic regions associated with adaptation to predation in Daphnia often include members of expanded gene families

et al. 2021

View full text Add to dashboard Cite

Predation has been a major driver of the evolution of prey species, which consequently develop antipredator adaptations. However, little is known about the genetic basis underpinning the adaptation of prey to intensive predation. Here, we describe a high-quality chromosome-level genome assembly (approx. 145 Mb, scaffold N50 11.45 Mb) of Daphnia mitsukuri , a primary forage for many fish species. Transcriptional profiling of D. mitsukuri exposed to fish kairomone revealed that this cladoceran responds to predation risk through regulating activities of Wnt signalling, cuticle pattern formation, cell cycle regulation and anti-apoptosis pathways. Genes differentially expressed in response to predation risk are more likely to be members of expanded families. Our results suggest that expansions of multiple gene families associated with chemoreception and vision allow Daphnia to enhance detection of predation risk, and that expansions of those associated with detoxification and cuticle formation allow Daphnia to mount an efficient response to perceived predation risk. This study increases our understanding of the molecular basis of prey defences, being important evolutionary adaptations playing a stabilizing role in community dynamics.

show abstract

Insights into the genetic basis of predator-induced response inDaphnia galeata

Cited by 7 publications

References 72 publications

Interacting phenotypes and the coevolutionary process: Interspecific indirect genetic effects alter coevolutionary dynamics

Interacting phenotypes and the coevolutionary process: Interspecific indirect genetic effects alter coevolutionary dynamics

Transcriptome‐wide genotype–phenotype associations in Daphnia in a predation risk environment

Genomic regions associated with adaptation to predation in Daphnia often include members of expanded gene families

Contact Info

Product

Resources

About