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Updated: Aug 19, 2026

Double Whole Mount in situ Hybridization of Early Chick Embryos
Published on: October 27, 2008
Erythrocyte alloantigen loci Ea-D and Ea-I map to chromosome 1 in the chicken
J J Bitgood1, R L Kendall, R W Briles
1Department of Poultry Science, University of Wisconsin-Madison 53706.
Abstract:
A test cross was conducted to analyse some linkage relationships in the chicken. Pea comb (P), naked neck (Na), tardy feathering (t), four erythrocyte alloantigen loci (Ea-C, -D, -I, -P), and the rearrangement break point (RB) of the NM 7092 t(Z;1) chromosome translocation were tested. Significant linkages were found between P and Ea-I (32.9 +/- 4.2), the RB and Ea-D (30.7 +/- 4.3), and t and Ea-D (38 +/- 4.8). The data suggest the linear order of t, Ea-D, and the RB, with t closest to the centromere. Significant linkage was also found between Na and Ea-P (32.4 +/- 4.9), confirming earlier reports.
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