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

Autor:	Hubert JN; GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France., Allal F; Ifremer, UMR 9190 MARBEC, 34250 Palavas-les-Flots, France., Hervet C; GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France., Ravakarivelo M; FOFIFA, DRZV, Antananarivo, Madagascar., Jeney Z; NAIK HAKI, 5540 Szarvas, Hungary., Vergnet A; Ifremer, 34250 Palavas-les-Flots, France., Guyomard R; GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France., Vandeputte M; GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France Ifremer, 34250 Palavas-les-Flots, France marc.vandeputte@jouy.inra.fr.
Jazyk:	angličtina
Zdroj:	Proceedings. Biological sciences [Proc Biol Sci] 2016 Aug 31; Vol. 283 (1837).
DOI:	10.1098/rspb.2016.0945
Abstrakt:	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. (© 2016 The Author(s).)
Databáze:	MEDLINE
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