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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Comparative FISH mapping on Z chromosomes of chicken and Japanese quail.

Using direct R-banding fluorescence in situ hybridization, we assigned five functional genes-growth hormone receptor (GHR), prolactin receptor (PRLR), spleen tyrosine kinase (SYK), aldolase B (ALDOB), and muscle skeletal receptor tyrosine kinase (MUSK)-to the chicken Z chromosome. SYK and MUSK were newly localized to the chicken Z chromosome in this study. GHR and PRLR were situated close to each other on the short arm of the chicken Z chromosome, as are their counterparts on human chromosome 5. SYK, MUSK, and ALDOB, which have been mapped to human chromosome 9, were localized to the long arm of the chicken Z chromosome. Thus, the present results indicate the presence of conserved synteny between the chicken Z chromosome and human chromosomes 5 and 9. Using the same method, four of the genes (GHR, PRLR, ALDOB, and MUSK) were assigned to the Japanese quail Z chromosome. The locations of these four Z-linked genes were conserved between chicken and Japanese quail. The results support the notion that the avian Z chromosome and the mammalian X chromosome did not evolve from a common ancestral linkage group.[1]


  1. Comparative FISH mapping on Z chromosomes of chicken and Japanese quail. Suzuki, T., Kansaku, N., Kurosaki, T., Shimada, K., Zadworny, D., Koide, M., Mano, T., Namikawa, T., Matsuda, Y. Cytogenet. Cell Genet. (1999) [Pubmed]
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