Genetic evidence from Indian red jungle fowl corroborates multiple domestication of modern day chicken
UMass Chan Affiliations
NeurobiologyDocument Type
Journal ArticlePublication Date
2008-06-10Keywords
AnimalsAnimals, Domestic
Base Sequence
Chickens
DNA, Mitochondrial
Evolution, Molecular
Genetic Variation
Haplotypes
India
Microsatellite Repeats
Molecular Sequence Data
Phylogeny
Principal Component Analysis
Sequence Alignment
Ecology and Evolutionary Biology
Life Sciences
Medicine and Health Sciences
Metadata
Show full item recordAbstract
BACKGROUND: Domestication of chicken is believed to have occurred in Southeast Asia, especially in Indus valley. However, non-inclusion of Indian red jungle fowl (RJF), Gallus gallus murghi in previous studies has left a big gap in understanding the relationship of this major group of birds. In the present study, we addressed this issue by analyzing 76 Indian birds that included 56 G. g. murghi (RJF), 16 G. g. domesticus (domestic chicken) and 4 G. sonneratii (Grey JF) using both microsatellite markers and mitochondrial D-loop sequences. We also compared the D-loop sequences of Indian birds with those of 779 birds obtained from GenBank. RESULTS: Microsatellite marker analyses of Indian birds indicated an average FST of 0.126 within G. g. murghi, and 0.154 within G. g. domesticus while it was more than 0.2 between the two groups. The microsatellite-based phylogenetic trees showed a clear separation of G. g. domesticus from G. g. murghi, and G. sonneratii. Mitochondrial DNA based mismatch distribution analyses showed a lower Harpending's raggedness index in both G. g. murghi (0.001515) and in Indian G. g. domesticus (0.0149) birds indicating population expansion. When meta analysis of global populations of 855 birds was carried out using median joining haplotype network, 43 Indian birds of G. g. domesticus (19 haplotypes) were distributed throughout the network sharing haplotypes with the RJFs of different origins. CONCLUSION: Our results suggest that the domestication of chicken has occurred independently in different locations of Asia including India. We found evidence for domestication of Indian birds from G. g. spadiceus and G. g. gallus as well as from G. g. murghi, corroborating multiple domestication of Indian and other domestic chicken. In contrast to the commonly held view that RJF and domestic birds hybridize in nature, the present study shows that G. g. murghi is relatively pure. Further, the study also suggested that the chicken populations have undergone population expansion, especially in the Indus valley.Source
BMC Evol Biol. 2008 Jun 10;8:174. Link to article on publisher's siteDOI
10.1186/1471-2148-8-174Permanent Link to this Item
http://hdl.handle.net/20.500.14038/39464PubMed ID
18544161; 18544161Related Resources
Link to Article in PubMedRights
© 2008 Kanginakudru et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.ae974a485f413a2113503eed53cd6c53
10.1186/1471-2148-8-174