Banding patterns of the chromosomes of Miopithecus talapoin compared with Macaca mulatta and Cercopithecus aethiops

The G-, C-, and Q-banding and NOR patterns of the chromosomes of Miopithecus talapoin are described. G-banding patterns are compared with those of Macaca mulatta and Cercopithecus aethiops which show large homoeologies.

Identity of euchromatic bands from man to cercopithecidae (Cercopithecus aethiops, Cercopithecus sabaeus, Erythrocebus patas, and Miopithecus talapoin)

The karyotypes of four species of Cercopithecidae: Cercopithecus aethiops tantalus, C. sabaeus, Erythrocebus patas, and Miopithecus talapoin are analysed with nearly all the banding techniques. They are compared with each other, and with the karyotypes of the Baboon P. papio and with that of man. It can be concluded that the quasi-totality or the totality of the euchromatin is common to all, but has undergone structural rearrangements, generally detectable. The heterochromatin, defined by C-band staining, and late-replicating DNA, in contrast, appears very variable: In particular, E. patas has acquired very large heterochromatic segments. The significance of these modifications is discussed.

Genetic variation of aldehyde dehydrogenase in primates

Genetic variation of aldehyde dehydrogenase has been demonstrated in catarrhine primates. The results are in accordance with the formal genetic interpretation: three alleles, AldDH1, AldDH2, AldDH3, at the gene locus AldDH. Obviously, the allele AldDH1 has undergone fixation in Homo and Hylobates, the allele AldDH2 in Macaca and Papio, and the allele AldDH3 in Cercopithecus.

Highly reiterated sequences of SIMIANSIMIANSIMIANSIMIANSIMIAN

A 172-base pair segment of DNA that is repeated several million times in the genome of the African green monkey has been characterized. Sequence analysis revealed that the many repeats of this complex unit are not all identical but represent a set of closely related segments: Sequence divergence occurs at various positions in the segment in a nonrandom manner. The uncloned segment obtained from monkey DNA is compared with a cloned segment of the same DNA which was recombined into the genome of simian virus 40 during permissive infection.