The evolution of the azoospermia factor region AZFa in higher primates |
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| Authors: | Wimmer R Kirsch S Rappold G A Schempp W |
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| Affiliation: | Institute of Human Genetics and Anthropology, University of Freiburg, Germany. |
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| Abstract: | Clones of a PAC contig encompassing the human AZFa region in Yq11.21 were comparatively FISH mapped to great ape Y chromosomes. While the orthologous AZFa locus in the chimpanzee, the bonobo and the gorilla maps to the long arm of their Y chromosomes in Yq12.1-->q12.2, Yq13.1-->q13.2 and Yq11.2, respectively, it is found on the short arm of the orang-utan subspecies of Borneo and Sumatra, in Yp12.3 and Yp13.2, respectively. Regarding the order of PAC clones and genes within the AZFa region, no differences could be detected between apes and man, indicating a strong evolutionary stability of this non-recombining region. |
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