Multiple maternal origins of chickens: Out of the Asian jungles

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

liu, yp (Autor) Outra; wu, gs (Autor) Outra; yao, yg (Autor) Outra; miao, yw (Autor) Outra; luikart, g (Autor) Outra; baig, m (Autor) Outra; beja-pereira, a (Autor) FCUP; ding, zl (Autor) Outra; palanichamy, mg (Autor) Outra; zhang, yp (Autor) Outra

Revista

Título: Molecular Phylogenetics and Evolution

Vol. 38

Páginas: 12-19

ISSN: 1055-7903

Editora: Elsevier

Indexação

ISI Web of Knowledge - 280 Citações

Scopus - 295 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências biológicas

Outras Informações

ID Authenticus: P-004-QC8

DOI: 10.1016/j.ympev.2005.09.014

Abstract (EN): Domestic chickens have long been important to human societies for food, religion, entertainment, and decorative uses, yet the origins and phylogeography of chickens through Eurasia remain uncertain. Here, we assessed their origins and phylogeographic history by analyzing the mitochondrial DNA hypervariable segment I (HVS-I) for 834 domestic chickens (Gallus gallus domesticus) across Eurasia as well as 66 wild red jungle fowls (Gallus gallus) from Southeast Asia and China. Phylogenetic analyses revealed nine highly divergent mtDNA clades (A-I) in which seven clades contained both the red jungle fowls and domestic chickens. There was no breed-specific clade in the chickens. The clades A, B, and E are distributed ubiquitously in Eurasia, while the other clades were restricted to South and Southeast Asia. Clade C was mainly distributed in Japan and Southeast China, while clades F and G were exclusive to Yunnan, China. The geographic distribution of clade D was closely related to the distribution of the pastime of cock fighting. Statistical tests detect population expansion within each subclade. These distinct distribution patterns and expansion signatures suggest that different clades may originate from different regions, such as Yunnan, South and Southwest China and/or surrounding areas (i.e., Vietnam, Burma, and Thailand), and the Indian subcontinent, respectively, which support the theory of multiple origins in South and Southeast Asia. (c) 2005 Elsevier Inc. All rights reserved.

Idioma: Inglês

Tipo (Avaliação Docente): Científica