Alongkoad Tanomtong, Roungvit Bunjonrat, Apiradee Sriphoom, Pannee Chinorak, Wiwat Kaensa, Sumat Kamolnarranath and Sopon Dumnui

pp. 1209 - 1220

Abstract

This research was the first karyotypic study of Small-toothed palm civet (Arctogalidia trivirgata).
Blood samples were taken from two males and two females kept in Dusit Zoo, Bangkok. After the standard
whole blood lymphocyte culture at 37ºC for 72 hr. in presence of Colchicine, the metaphase spreads were performed on microscopic slides and air-dried. Conventional Giemsa's staining were applied to stain the
chromosome. The results showed that the number of diploid chromosome of Small-toothed palm civet was
2n = 40, the fundamental number (NF) was 66 in both male and female. The type of autosomes were 2 large
metacentric, 2 large submetacentric, 8 large acrocentric, 4 large telocentric, 4 medium submetacentric, 4
medium telocentric, 4 small metacentric, 2 small submetacentric, 2 small acrocentric and 6 small telocentric
chromosomes. In addition, chromosome 17 showed a clearly observable satellite. X-chromosome was the
large metacentric and Y chromosome was the smallest acrocentric chromosome.
The karyotype formula for the male Small-toothed palm civet (Arctogalidia trivirgata) is as follows:
2n (40) = L^m₂+L^sm₂+L^a₈+L^t₄+M^sm₄+M^t₄+S^m₄+S^sm₂+S^a₂+S^t₆+X+Y
= L^m₃+L^sm₂+L^a₈+L^t₄+M^sm₄+M^t₄+S^m₄+S^sm₂+S^a₃+S^t₆
The karyotype formula for the female Small-toothed palm civet (Arctogalidia trivirgata) is as follows:
2n (40) = L^m₂+L^sm₂+L^a₈+L^t₄+M^sm₄+M^t₄+S^m₄+S^sm₂+S^a₂+S^t₆+X+X
= L^m₄+L^sm₂+L^a₈+L^t₄+M^sm₄+M^t₄+S^m₄+S^sm₂+S^a₂+S^t₆

Keywords

• cytogenetics
• karyotype
• Small-toothed palm civet (Arctogalidia trivirgata)