Chromosome studies of a donkey-grevy zebra hybrid

Chromosomes of the Tan-Handed Titi <i>(Callicebus torquatus</i>, Hoffmannsegg, 1807)

“…Against this notion, however, is the observation of hybrids of species with a grossly divergent chromosome number. In the past we have studied a crossing between donkey (2n = 62) and mountain zebra (2n = 32) [Benirschke et al, 1964]. Although, by and large, the chromosomes of the latter should possess twice the length of the former, there being no excessively long elements and DNA measurements of the two species being nearly iden tical, the chromosomes of E. zebra could not be singled out by their length in metaphases.…”

Detomidine and Butorphanol for Standing Sedation in a Range of Zoo-Kept Ungulate Species

“…By convention, the sire's name comes first (e.g., zorse [zebra sire and a horse dam], zedonkey [zebra sire and a donkey dam]). 5 …”

Pooling strategy and chromosome painting characterize a living zebroid for the first time

“…In recent times animal breeders and zoos have created, either by accident or design, a spectacular range of mammalian hybrids, from Grizzly-Polar bear, Coywolf, Savannah cat and Liger (lion-tiger), to Zebroids [1–2], Dzo [3] (cattle-Yak), Beefalo [4] (American bison and cattle), geep [5–6–7] (sheep-goat) and Cama (camel-llama). Most of these hybrids are listed in Annie Gray's masterful bibliography [8] and they represent exciting and new scientific challenges for today's molecular and developmental biologists.…”

“…There are several reports of chromosome studies on zebroids including zebra hybrid [14], donkey-grevy zebra hybrid [2], zebra-donkey [1] and some others reported by Gray [8]. These cases were studied using conventional cytogenetics that provided little information on possible chromosomal rearrangements.…”