Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect

Vellnow N, Schindler S, Schmoll T (2020)
Ecology and Evolution 10(21): 12138-12146.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
In sexually reproducing species, males often experience strong pre- and postcopulatory sexual selection leading to a wide variety of male adaptations. One example is mate guarding, where males prevent females from mating with other males either before or after they (will) have mated themselves. In case social conditions vary short term and in an unpredictable manner and if there is genetic variation in plasticity of mate guarding (i.e., genotype-by-environment interaction, G x E), adaptive behavioral plasticity in mate guarding may evolve. Here, we test for genetic variation in the plasticity of precopulatory mate-guarding behavior in the lek-mating lesser wax mothAchroia grisella. When offered two females in rapid succession, virgin males of this species usually copulate around 10-20 min with the first female. With the second female, however, they engage in copulation posture for many hours until they have produced another spermatophore, an unusual behavior among insects possibly functioning as precopulatory mate guarding. Previous studies showed the mating latency with the second female to be shorter under higher perceived sperm competition risk. We accordingly measured the mate-guarding behavior of males from six inbred lines under either elevated perceived male-male competition risk or under control conditions allowing us to test for G x E interactions. We found significant inbred line-by-competitor treatment interactions on mating latency and copulation duration with the second female suggesting genetic variation in the degree of behavioral plasticity. However, we found no significant G x E interaction on the sum of mating latency and copulation duration. Our results suggest a potential for adaptive evolution of mate-guarding plasticity in natural populations of lek-mating species. Future studies using selection experiments and experimental evolution approaches in laboratory populations, or comparisons of multiple natural populations will be helpful to study under which conditions plasticity in male mate-guarding behavior evolves.
Stichworte
Achroia grisella; behavioral plasticity; G x E; inbred lines; lek; mating latency; precopulatory sexual selection; wax moth
Erscheinungsjahr
2020
Zeitschriftentitel
Ecology and Evolution
Band
10
Ausgabe
21
Seite(n)
12138-12146
eISSN
2045-7758
Finanzierungs-Informationen
Open-Access-Publikationskosten wurden durch die Universität Bielefeld im Rahmen des DEAL-Vertrags gefördert.
Page URI
https://pub.uni-bielefeld.de/record/2946751

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Vellnow N, Schindler S, Schmoll T. Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect. Ecology and Evolution . 2020;10(21):12138-12146.
Vellnow, N., Schindler, S., & Schmoll, T. (2020). Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect. Ecology and Evolution , 10(21), 12138-12146. doi:10.1002/ece3.6841
Vellnow, N., Schindler, S., and Schmoll, T. (2020). Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect. Ecology and Evolution 10, 12138-12146.
Vellnow, N., Schindler, S., & Schmoll, T., 2020. Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect. Ecology and Evolution , 10(21), p 12138-12146.
N. Vellnow, S. Schindler, and T. Schmoll, “Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect”, Ecology and Evolution , vol. 10, 2020, pp. 12138-12146.
Vellnow, N., Schindler, S., Schmoll, T.: Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect. Ecology and Evolution . 10, 12138-12146 (2020).
Vellnow, Nikolas, Schindler, Sonja, and Schmoll, Tim. “Genotype-by-environment interactions for precopulatory mate guarding in a lek-mating insect”. Ecology and Evolution 10.21 (2020): 12138-12146.
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2020-11-17T08:00:35Z
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