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Species-specific effects of thermal stress on the expression of genetic variation across a diverse group of plant and animal taxa under experimental conditions

(2021) HEREDITY. 126(1). p.23-37
Author
Organization
Abstract
Assessing the genetic adaptive potential of populations and species is essential for better understanding evolutionary processes. However, the expression of genetic variation may depend on environmental conditions, which may speed up or slow down evolutionary responses. Thus, the same selection pressure may lead to different responses. Against this background, we here investigate the effects of thermal stress on genetic variation, mainly under controlled laboratory conditions. We estimated additive genetic variance (V-A), narrow-sense heritability (h(2)) and the coefficient of genetic variation (CVA) under both benign control and stressful thermal conditions. We included six species spanning a diverse range of plant and animal taxa, and a total of 25 morphological and life-history traits. Our results show that (1) thermal stress reduced fitness components, (2) the majority of traits showed significant genetic variation and that (3) thermal stress affected the expression of genetic variation (V-A,h(2)orCV(A)) in only one-third of the cases (25 of 75 analyses, mostly in one clonal species). Moreover, the effects were highly species-specific, with genetic variation increasing in 11 and decreasing in 14 cases under stress. Our results hence indicate that thermal stress does not generally affect the expression of genetic variation under laboratory conditions but, nevertheless, increases or decreases genetic variation in specific cases. Consequently, predicting the rate of genetic adaptation might not be generally complicated by environmental variation, but requires a careful case-by-case consideration.
Keywords
Genetics(clinical), Genetics, CLIMATE-CHANGE, GROWTH-RATE, ARABIDOPSIS-THALIANA, LIPID-PEROXIDATION, HIGH-TEMPERATURE, POPULATION-SIZE, EGG SIZE, EVOLUTIONARY, HISTORY, RANGE

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Citation

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MLA
Fischer, Klaus, et al. “Species-Specific Effects of Thermal Stress on the Expression of Genetic Variation across a Diverse Group of Plant and Animal Taxa under Experimental Conditions.” HEREDITY, vol. 126, no. 1, 2021, pp. 23–37, doi:10.1038/s41437-020-0338-4.
APA
Fischer, K., Kreyling, J., Beaulieu, M., Beil, I., Bog, M., Bonte, D., … Gienapp, P. (2021). Species-specific effects of thermal stress on the expression of genetic variation across a diverse group of plant and animal taxa under experimental conditions. HEREDITY, 126(1), 23–37. https://doi.org/10.1038/s41437-020-0338-4
Chicago author-date
Fischer, Klaus, Jürgen Kreyling, Michaël Beaulieu, Ilka Beil, Manuela Bog, Dries Bonte, Stefanie Holm, et al. 2021. “Species-Specific Effects of Thermal Stress on the Expression of Genetic Variation across a Diverse Group of Plant and Animal Taxa under Experimental Conditions.” HEREDITY 126 (1): 23–37. https://doi.org/10.1038/s41437-020-0338-4.
Chicago author-date (all authors)
Fischer, Klaus, Jürgen Kreyling, Michaël Beaulieu, Ilka Beil, Manuela Bog, Dries Bonte, Stefanie Holm, Sabine Knoblauch, Dustin Koch, Lena Muffler, Pierick Mouginot, Maria Paulinich, J. F. Scheepens, Raijana Schiemann, Jonas Schmeddes, Martin Schnittler, Gabriele Uhl, Marieke van der Maaten-Theunissen, Julia M. Weier, Martin Wilmking, Robert Weigel, and Phillip Gienapp. 2021. “Species-Specific Effects of Thermal Stress on the Expression of Genetic Variation across a Diverse Group of Plant and Animal Taxa under Experimental Conditions.” HEREDITY 126 (1): 23–37. doi:10.1038/s41437-020-0338-4.
Vancouver
1.
Fischer K, Kreyling J, Beaulieu M, Beil I, Bog M, Bonte D, et al. Species-specific effects of thermal stress on the expression of genetic variation across a diverse group of plant and animal taxa under experimental conditions. HEREDITY. 2021;126(1):23–37.
IEEE
[1]
K. Fischer et al., “Species-specific effects of thermal stress on the expression of genetic variation across a diverse group of plant and animal taxa under experimental conditions,” HEREDITY, vol. 126, no. 1, pp. 23–37, 2021.
@article{8680825,
  abstract     = {{Assessing the genetic adaptive potential of populations and species is essential for better understanding evolutionary processes. However, the expression of genetic variation may depend on environmental conditions, which may speed up or slow down evolutionary responses. Thus, the same selection pressure may lead to different responses. Against this background, we here investigate the effects of thermal stress on genetic variation, mainly under controlled laboratory conditions. We estimated additive genetic variance (V-A), narrow-sense heritability (h(2)) and the coefficient of genetic variation (CVA) under both benign control and stressful thermal conditions. We included six species spanning a diverse range of plant and animal taxa, and a total of 25 morphological and life-history traits. Our results show that (1) thermal stress reduced fitness components, (2) the majority of traits showed significant genetic variation and that (3) thermal stress affected the expression of genetic variation (V-A,h(2)orCV(A)) in only one-third of the cases (25 of 75 analyses, mostly in one clonal species). Moreover, the effects were highly species-specific, with genetic variation increasing in 11 and decreasing in 14 cases under stress. Our results hence indicate that thermal stress does not generally affect the expression of genetic variation under laboratory conditions but, nevertheless, increases or decreases genetic variation in specific cases. Consequently, predicting the rate of genetic adaptation might not be generally complicated by environmental variation, but requires a careful case-by-case consideration.}},
  author       = {{Fischer, Klaus and Kreyling, Jürgen and Beaulieu, Michaël and Beil, Ilka and Bog, Manuela and Bonte, Dries and Holm, Stefanie and Knoblauch, Sabine and Koch, Dustin and Muffler, Lena and Mouginot, Pierick and Paulinich, Maria and Scheepens, J. F. and Schiemann, Raijana and Schmeddes, Jonas and Schnittler, Martin and Uhl, Gabriele and van der Maaten-Theunissen, Marieke and Weier, Julia M. and Wilmking, Martin and Weigel, Robert and Gienapp, Phillip}},
  issn         = {{0018-067X}},
  journal      = {{HEREDITY}},
  keywords     = {{Genetics(clinical),Genetics,CLIMATE-CHANGE,GROWTH-RATE,ARABIDOPSIS-THALIANA,LIPID-PEROXIDATION,HIGH-TEMPERATURE,POPULATION-SIZE,EGG SIZE,EVOLUTIONARY,HISTORY,RANGE}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{23--37}},
  title        = {{Species-specific effects of thermal stress on the expression of genetic variation across a diverse group of plant and animal taxa under experimental conditions}},
  url          = {{http://doi.org/10.1038/s41437-020-0338-4}},
  volume       = {{126}},
  year         = {{2021}},
}

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