How could fully scaled carps appear in natural waters in Madagascar?

Jean Noël Hubert, François Allal, Caroline Hervet, Monique Ravakarivelo, Zsigmond Jeney, Alain Vergnet, René Guyomard, Marc Vandeputte

Research output: Article

1 Citation (Scopus)

Abstract

The capacity of organisms to rapidly evolve in response to environmental changes is a key feature of evolution, and studying mutation compensation is a way to evaluate whether alternative routes of evolution are possible or not. Common carps (Cyprinus carpio) carrying a homozygous loss-of-function mutation for the scale cover gene fgfr1a1, causing the ‘mirror’ reduced scale cover, were introduced in Madagascar a century ago. Here we show that carps in Malagasy natural waters are now predominantly covered with scales, though they still all carry the homozygous mutation. We also reveal that the number of scales in mutated carps is under strong polygenic genetic control, with a heritability of 0.49. As a whole, our results suggest that carps submitted to natural selection could evolve a wild-type-like scale cover in less than 40 generations from standing polygenic genetic variation, confirming similar findings mainly retrieved from model organisms.

Original languageEnglish
Article number20160945
JournalProceedings of the Royal Society B: Biological Sciences
Volume283
Issue number1837
DOIs
Publication statusPublished - aug. 31 2016

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Environmental Science(all)
  • Agricultural and Biological Sciences(all)

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  • Cite this

    Hubert, J. N., Allal, F., Hervet, C., Ravakarivelo, M., Jeney, Z., Vergnet, A., Guyomard, R., & Vandeputte, M. (2016). How could fully scaled carps appear in natural waters in Madagascar? Proceedings of the Royal Society B: Biological Sciences, 283(1837), [20160945]. https://doi.org/10.1098/rspb.2016.0945