Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes

Schielzeth H, Streitner C, Lampe U, Franzke A, Reinhold K (2014)
Evolution 68: 3629-3635.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
Genome size is largely uncorrelated to organismal complexity and adaptive scenarios. Genetic drift as well as intragenomic conflict have been put forward to explain this observation. We here study the impact of genome size on sexual attractiveness in the bow-winged grasshopper Chorthippus biguttulus. Grasshoppers show particularly large variation in genome size due to the high prevalence of supernumerary chromosomes that are considered (mildly) selfish, as evidenced by non-Mendelian inheritance and fitness costs if present in high numbers. We ranked male grasshoppers by song characteristics that are known to affect female preferences in this species and scored genome sizes of attractive and unattractive individuals from the extremes of this distribution. We find that attractive singers have significantly smaller genomes, demonstrating that genome size is reflected in male courtship songs and that females prefer songs of males with small genomes. Such a genome size dependent mate preference effectively selects against selfish genetic elements that tend to increase genome size. The data therefore provide a novel example of how sexual selection can reinforce natural selection and can act as an agent in an intragenomic arms race. Furthermore, our findings indicate an underappreciated route of how choosy females could gain indirect benefits.
Erscheinungsjahr
Zeitschriftentitel
Evolution
Band
68
Seite
3629-3635
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Schielzeth H, Streitner C, Lampe U, Franzke A, Reinhold K. Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes. Evolution. 2014;68:3629-3635.
Schielzeth, H., Streitner, C., Lampe, U., Franzke, A., & Reinhold, K. (2014). Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes. Evolution, 68, 3629-3635. doi:10.1111/evo.12522
Schielzeth, H., Streitner, C., Lampe, U., Franzke, A., and Reinhold, K. (2014). Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes. Evolution 68, 3629-3635.
Schielzeth, H., et al., 2014. Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes. Evolution, 68, p 3629-3635.
H. Schielzeth, et al., “Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes”, Evolution, vol. 68, 2014, pp. 3629-3635.
Schielzeth, H., Streitner, C., Lampe, U., Franzke, A., Reinhold, K.: Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes. Evolution. 68, 3629-3635 (2014).
Schielzeth, Holger, Streitner, Corinna, Lampe, Ulrike, Franzke, Alexandra, and Reinhold, Klaus. “Genome size variation affects song attractiveness in grasshoppers: Evidence for sexual selection against large genomes”. Evolution 68 (2014): 3629-3635.

4 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

Technical Comment: Response to Camacho.
Schielzeth H, Streitner C, Lampe U, Franzke A, Reinhold K., Evolution 70(8), 2016
PMID: 27377329
No evidence that sex and transposable elements drive genome size variation in evening primroses.
Ågren JA, Greiner S, Johnson MT, Wright SI., Evolution 69(4), 2015
PMID: 25690700
Genome size correlates with reproductive fitness in seed beetles.
Arnqvist G, Sayadi A, Immonen E, Hotzy C, Rankin D, Tuda M, Hjelmen CE, Johnston JS., Proc Biol Sci 282(1815), 2015
PMID: 26354938

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