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Journal of Heredity Advance Access originally published online on March 29, 2007
Journal of Heredity 2007 98(3):238-242; doi:10.1093/jhered/esm010
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© The American Genetic Association. 2007. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Female-Specific DNA Sequences in the Chicken Genome

Zur Granevitze, Shula Blum, Hans Cheng, Alain Vignal, Mireille Morisson, Giora Ben-Ari, Lior David, Marcus William Feldman, Steffen Weigend, and Jossi Hillel

From the Robert H. Smith Institute of Plant Sciences and Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot 76100, Israel (Granevitze, Blum, Ben-Ari, and Hillel); the USDA-ARS, Avian Disease and Oncology Laboratory, 3606 E. Mount Hope Road East Lansing, MI 48823 (Cheng); the Laboratoire de Genetique Cellulaire, INRA, Castanet-Tolosan 31326, France (Vignal and Morisson); the Department of Animal Sciences, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot 76100, Israel (David); the Department of Biological Sciences, Stanford University, Stanford, CA 94305-5020 (Feldman); and the Institute for Animal Breeding, Federal Agricultural Research Centre, Mariensee, Neustadt 31535, Germany (Weigend)

Address correspondence to Prof. J. Hillel at the address above, or e-mail: hillel{at}agri.huji.ac.il.

Eight in silico W-specific sequences from the WASHUC1 chicken genome assembly gave female-specific PCR products using chicken DNA. Some of these fragments gave female-specific products with turkey and peacock DNA. Sequence analysis of these 8 fragments (3077 bp total) failed to detect any polymorphisms among 10 divergent chickens. In contrast, comparison of the DNA sequences of chicken with those of turkey and peacock revealed a nucleotide difference every 25 and 28 bp, respectively. Radiation hybrid mapping verified that these amplicons exist only on chromosome W. The homology of 6 W-specific fragments with chromo-helicase-DNA–binding gene and expressed sequenced tags from chicken and other species indicate that these fragments may have or have had a biological function. These fragments may be used for early sexing in commercial chicken and turkey flocks.

Corresponding Editor: Susan Lamont

Received August 8, 2006
Accepted January 31, 2007


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