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

Type Article
Date 2016-08
Language English
Author(s) Hubert Jean-NoelORCID1, Allal FrancoisORCID2, Hervet Caroline1, Ravakarivelo MoniqueORCID3, Jeney ZsigmondORCID4, Vergnet AlainORCID5, Guyomard ReneORCID1, Vandeputte MarcORCID1, 5
Affiliation(s) 1 : Univ Paris Saclay, GABI, INRA, AgroParisTech, F-78350 Jouy En Josas, France.
2 : IFREMER, UMR MARBEC 9190, F-34250 Palavas Les Flots, France.
3 : DRZV, FOFIFA, Antananarivo, Madagascar.
4 : NAIK HAKI, H-5540 Szarvas, Hungary.
5 : IFREMER, F-34250 Palavas Les Flots, France.
Source Proceedings Of The Royal Society B-biological Sciences (0962-8452) (Royal Soc), 2016-08 , Vol. 283 , N. 1837 , P. 20160945 (1-8)
DOI 10.1098/rspb.2016.0945
WOS© Times Cited 1
Keyword(s) evolution, mutation compensation, heritability
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.
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Hubert Jean-Noel, Allal Francois, Hervet Caroline, Ravakarivelo Monique, Jeney Zsigmond, Vergnet Alain, Guyomard Rene, Vandeputte Marc (2016). How could fully scaled carps appear in natural waters in Madagascar? Proceedings Of The Royal Society B-biological Sciences, 283(1837), 20160945 (1-8). Publisher's official version : , Open Access version :