tailieunhanh - Báo cáo sinh học: "Evolutionary relationships of Red Jungle Fowl and chicken breeds"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: Evolutionary relationships of Red Jungle Fowl and chicken breeds | 403 Genet. Sel. Evol. 35 2003 403-423 INRA EDP Sciences 2003 DOI gse 2003031 Original article Evolutionary relationships of Red Jungle Fowl and chicken breeds Irina G. MOISEYEVAa Michael N. Romanov0 Andrey A. NIKIFOROva Antonina A. Sevastyanovac Serafima K. SEMYENOVAd a . Vavilov Institute of General Genetics RAS Moscow 119991 Russia b Department of Microbiology and Molecular Genetics 2209 Biomedical Physical Sciences Michigan State University East Lansing MI 48824-4320 USA c All-Russian Poultry Research and Technological Institute RAAS Sergiev Posad Moscow Region 141300 Russia d Institute of Gene Biology RAS Moscow 119334 Russia Received 2 January 2002 accepted 20 December 2002 Abstract - Published results were reassessed and original data are provided regarding the origin and relatedness of four postulated chicken breed lineages egg-type game meat-type and Bantam to each other and to the basic ancestral species of jungle fowls Gallus gallus. A system approach was employed concerning the planning of the experiments. One element of the system approach is the choice of the breeds to be compared with G. gallus. These breeds were supposed to represent major evolutionary branches of chickens. Four experiments on genetic relationships were conducted using different estimation criteria including morphological discrete characters body measurements biochemical markers and the activity of serum esterase-1. The greatest similarity was found between G. gallus and the egg-type breeds of Mediterranean roots and or true Bantams. This fact might testify that the indicated chicken groups occupied earlier stages in the evolution from the wild progenitor to the present biodiversity of chickens in the world. Red Jungle Fowl chicken breeds evolution genetic relationship biodiversity 1. INTRODUCTION Because of far inconsistent opinions regarding the origin of the domestic fowl great interest has been stimulated in exploring the jungle fowl species including Gallus gallus Red