Adaptive introgression underlies polymorphic seasonal camouflage in snowshoe hares

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018-06-21

Autores

Alves, PC (Autor) FCUP; Melo-Ferreira, J (Autor) FCUP; Jones, MR (Autor) Outra; Mills, LS (Autor) Outra; Callahan, CM (Autor) Outra; Alves, JM (Autor) Outra; Lafferty, D (Autor) Outra; Jiggins, FM (Autor) Outra; Jensen, JD (Autor) Outra; Good, JM (Autor) Outra

Revista

Título: Science

Vol. 360

Páginas: 1355-+

ISSN: 0036-8075

Editora: American Association for the Advancement of Science

Indexação

ISI Web of Knowledge - 160 Citações

Scopus - 161 Citações

Classificação Científica

CORDIS: Ciências Naturais

FOS: Ciências exactas e naturais > Ciências biológicas

Outras Informações

ID Authenticus: P-00Q-3MC

DOI: 10.1126/science.aar5273

Abstract (EN): Snowshoe hares (Lepus americanus) maintain seasonal camouflage by molting to a white winter coat, but some hares remain brown during the winter in regions with low snow cover. We show that cis-regulatory variation controlling seasonal expression of the Agouti gene underlies this adaptive winter camouflage polymorphism. Genetic variation at Agouti clustered by winter coat color across multiple hare and jackrabbit species, revealing a history of recurrent interspecific gene flow. Brown winter coats in snowshoe hares likely originated from an introgressed black-tailed jackrabbit allele that has swept to high frequency in mild winter environments. These discoveries show that introgression of genetic variants that underlie key ecological traits can seed past and ongoing adaptation to rapidly changing environments.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4