Birds

Copy number variation in HOXB7 and HOXB8 involves in the formation of beard trait in chickens

5 monthes ago   |   By Animal Genetics

Summary
The derived feathering phenotype beard in domestic birds is an ideal resource to investigate the genetic mechanisms controlling feather development and differentiation. In the present study, we performed a GWAS and QTL linkage analysis on the trait of beard in Beijing fatty chicken. One major QTL was identified that could explain 34% of the phenotypic variation. The copy number variation that was copied from the region containing homebox B7 and homebox B8 was validated to be only exhibited in the genome of bearded chickens. Protein-protein interaction analysis indicated that HOXB7...
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