Cytogenetics of Stump-tailed Macaque, Macaca arctoides (Primate, Cercopithecidae) in Thailand by Conventional Staining

Alongkoad TANOMTONG; Sumpars KHUNSOOK; Wiwat KAENSA; Wichit KONGKHAM

Authors

Alongkoad TANOMTONG Genetic Program, Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002
Sumpars KHUNSOOK Genetic Program, Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002
Wiwat KAENSA Genetic Program, Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002
Wichit KONGKHAM The Zoological Park Organization Under the Royal Patronage, Dusit, Bangkok 10300

Keywords:

Cytogenetics, Conventional staining, Stump-tailed macaque (Macaca arctoides)

Abstract

The cytogenetics of the stump-tailed macaque (Macaca arctoides) in Thailand was studied. Blood samples were collected from this species maintained in Nakhon Ratchasima Zoo and Songkhla Zoo. After standard whole blood lymphocytes were cultured in the presence of colchicine, metaphase cells were spreaded on the slide and air-aired. Chromosomes were observed using Conventional Giemsa staining under a light microscope. The results show that the number of diploid chromosomes of the stump-tailed macaque is 2n=42, and the fundamental number (NF) are 84 chromosomes in the female and male. The types of autosomes are 6 large metacentric, 8 large submetacentric, 4 medium metacentric, 12 medium submetacentric, 8 small metacentric and 2 small submetacentric chromosomes. In addition, the pair of chromosome 13 is a clearly observable satellite chromosome. The X chromosome is medium submetacentric and the Y chromosome is the smallest submetacentric chromosome.

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