Artificial selection affects phenotypes differently by natural selection. Domestic traits, which pass into the wild, are usually negatively selected. Yet, exceptionally, this axiom may fail to apply if genes, from the domestic animals, increase fertility in the wild. We studied a rare case of a wild boar population under the framework of Wright's interdemic selection model, which could explain gene flow between wild boar and pig, both considered as demes. We analysed the MC1R gene and microsatellite neutral loci in 62 pregnant wild boars as markers of hybridization, and we correlated nucleotide mutations on MC1R (which are common in domestic breeds) to litter size, as an evaluation of fitness in wild sow. Regardless of body size and phyletic effects, wild boar sows bearing nonsynonymous MC1R mutations produced larger litters. This directly suggests that artificially selected traits reaching wild populations, through interdemic gene flow, could bypass natural selection if and only if they increase the fitness in the wild.

Unexpected but welcome. Artificially-selected traits may increase fitness in wild boar / Fulgione, Domenico; Rippa, Daniela; Buglione, Maria; Trapanese, Martina; Petrelli, Simona; Maselli, Valeria. - In: EVOLUTIONARY APPLICATIONS. - ISSN 1752-4571. - 9:6(2016), pp. 769-776. [10.1111/eva.12383]

Unexpected but welcome. Artificially-selected traits may increase fitness in wild boar

FULGIONE, DOMENICO
Primo
;
RIPPA, Daniela
Secondo
;
BUGLIONE, MARIA;TRAPANESE, MARTINA;PETRELLI, SIMONA
Penultimo
;
MASELLI, VALERIA
Ultimo
2016

Abstract

Artificial selection affects phenotypes differently by natural selection. Domestic traits, which pass into the wild, are usually negatively selected. Yet, exceptionally, this axiom may fail to apply if genes, from the domestic animals, increase fertility in the wild. We studied a rare case of a wild boar population under the framework of Wright's interdemic selection model, which could explain gene flow between wild boar and pig, both considered as demes. We analysed the MC1R gene and microsatellite neutral loci in 62 pregnant wild boars as markers of hybridization, and we correlated nucleotide mutations on MC1R (which are common in domestic breeds) to litter size, as an evaluation of fitness in wild sow. Regardless of body size and phyletic effects, wild boar sows bearing nonsynonymous MC1R mutations produced larger litters. This directly suggests that artificially selected traits reaching wild populations, through interdemic gene flow, could bypass natural selection if and only if they increase the fitness in the wild.
2016
Unexpected but welcome. Artificially-selected traits may increase fitness in wild boar / Fulgione, Domenico; Rippa, Daniela; Buglione, Maria; Trapanese, Martina; Petrelli, Simona; Maselli, Valeria. - In: EVOLUTIONARY APPLICATIONS. - ISSN 1752-4571. - 9:6(2016), pp. 769-776. [10.1111/eva.12383]
File in questo prodotto:
File Dimensione Formato  
Fulgione_et_al-2016-Evolutionary_Applications-3.pdf

accesso aperto

Tipologia: Documento in Post-print
Licenza: Creative commons
Dimensione 803.48 kB
Formato Adobe PDF
803.48 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/636119
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 41
  • ???jsp.display-item.citation.isi??? 39
social impact