Article

Chromosoma

, Volume 41, Issue 3, pp 265-270

First online:

Chromosome studies of a fertile mammalian hybrid: the offspring of the cross bongo × sitatunga (Bovoidea)

  • L. KoulischerAffiliated withInstitut de Morphologie PathologiqueRoyal Society of Zoology
  • , J. TijskensAffiliated withInstitut de Morphologie PathologiqueRoyal Society of Zoology
  • , J. MortelmansAffiliated withInstitut de Morphologie PathologiqueRoyal Society of Zoology

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Abstract

The offspring of the cross bongo (Boocercus euryceros), 2n = 33 x sitatunga (Tragelaphus spekei), 2n = 30, has proved to be fertile. This fertility shows that the relationship between the karyotypes of the parental species is a simple one, despite the different diploid numbers and a different sex chromosome determinism, XX/XY in the sitatunga, XX/Y-to-autosome translocation in the bongo:meiotic processes and gametogenesis are not impaired in the hybrid.