title: The chromosomes of the bongo, Taurotragus (Boocerus) eurycerus.
abstract: Chromosome studies on 14 bongos, Taurotragus (Boocerus) eurycerus, disclosed that males have 33 and females 34 chromosomes. The acrocentric Y chromosome is fused to the acrocentric autosome 13. Two X-chromosomal types exist, one a large acrocentric that is identical to that of other tragelaphines, and the other a submetacentric. The latter is produced by the addition of heterochromatin as a new short arm and not, as previously believed, by pericentric inversion. The inheritance of the different X-chromosome morphotypes is followed in one pedigree. Homozygous females for both morphotypes exist and appear to be normal.
mesh_terms: D000818:Animals; D001188:Artiodactyla / Q000235:genetics*; D002875:Chromosomes; D005260:Female; D008297:Male; D014178:Translocation, Genetic; D014960:X Chromosome / Q000648:ultrastructure; D014998:Y Chromosome / Q000648:ultrastructure