Assessment of behavioural and physiological traits as indicators of suitability for European perch aquaculture

Gebauer, Tatyana; Gebauer, Radek; Palińska‐Żarska, Katarzyna; Císař, Petr; Movchan, O.G.; Tomášek, Ondřej; Prokešová, Markéta; Matoušek, Jan; Hliwa, Piotr; Król, Jarosław; Żarski, Daniel; Rebl, Alexander; Stejskal, Vlastimil

doi:10.1016/j.aquaculture.2021.737048

Cited by 4 publications

(1 citation statement)

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“…Determining contemporary selection on the stress response, and testing the possibility that its underlying genetic variation is maintained by fitness trade-offs, is thus an obvious – if empirically challenging – next step to understanding the functional importance of genetic variation in the stress response in wild populations. In a more applied context, integration of behavioural and endocrine stress response components at the genetic level has potential utility for artificial selection to improve resilience to chronic stressors in managed populations ( Gebauer et al, 2021 ). Specifically, it may be possible to identify non-invasive, high throughput, behavioural biomarkers and target them in selection schemes to reduce chronic activation of the HPA/I endocrine axis and its attendant deleterious effects.…”

Section: Discussionmentioning

confidence: 99%

Genetic integration of behavioural and endocrine components of the stress response

Houslay

Earley

White

et al. 2022

eLife

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The vertebrate stress response comprises a suite of behavioural and physiological traits that must be functionally integrated to ensure organisms cope adaptively with acute stressors. Natural selection should favour functional integration, leading to a prediction of genetic integration of these traits. Despite the implications of such genetic integration for our understanding of human and animal health, as well as evolutionary responses to natural and anthropogenic stressors, formal quantitative genetic tests of this prediction are lacking. Here, we demonstrate that acute stress response components in Trinidadian guppies are both heritable and integrated on the major axis of genetic covariation. This integration could either facilitate or constrain evolutionary responses to selection, depending upon the alignment of selection with this axis. Such integration also suggests artificial selection on the genetically correlated behavioural responses to stress could offer a viable non-invasive route to the improvement of health and welfare in captive animal populations.

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Section: Discussionmentioning

confidence: 99%