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Evolutionary analysis of HOXD-AS1 transcript. (A) The 3'-region of HOXD-AS1 gene is conservative among mammals, while the middle part shares conservation in primates and the 5'- region in hominids only. (B) The putative spliced variant of the major HOXD-AS1 transcript is conservative among primates, while its 3'-part is common for mammals.
