New record on karyological analysis and first study of NOR localization of parthenogenetic brahminy blind snake, Ramphotyphlops braminus (Squamata, Typhlopidae) in Thailand

被引：7

作者：

Patawang I. ^{[1
]}

Tanomtong A. ^{[1
]}

Kaewmad P. ^{[2
]}

Chuaynkern Y. ^{[1
]}

Duengkae P. ^{[3
]}

机构：

[1] Toxic Substances in Livestock and Aquatic Animals Research Group, Department of Biology, Faculty of Science, Khon Kaen University, Muang, 40002, Khon Kaen

[2] Major of Biology, Faculty of Science and Technology, Mahasarakham Rajabhat University, Muang, 44000, Mahasarakham

[3] Department of Forest Biology, Faculty of Forestry, Kasetsart University, Chatuchak, 10900, Bangkok

来源：

The Nucleus | 2016年 / 59卷 / 1期

关键词：

Chromosome; Karyotype; Ramphotyphlops braminus;

D O I：

10.1007/s13237-015-0154-z

中图分类号：

学科分类号：

摘要：

This is chromosomal analysis of the brahminy blind snake, Ramphotyphlops braminus (Daudin, 1803), a newly recorded species in northeastern Thailand. Mitotic chromosomes were prepared directly from intestinal epithelia cells of five brahminy blind snakes. Conventional staining and Ag-NOR banding techniques were applied to stain the chromosomes. The results showed that the triploid chromosome number was 3n = 42, while the fundamental number (NF) was 78. The types of chromosomes were 24 macrochromosomes (19 m + 5sm) and 18 microchromosomes (9 m + 3sm + 6 t). The region adjacent to the short arm near the telomere of one in macrochromosome pair 8 showed a clearly observable nucleolar organizer region/NOR. There were no irregularly sized chromosomes related to sex. The karyotype formula for R. braminus is as follows: 3n (42) = Lm 12+ Sm 7+ Ssm 5+ 18 microchromosomes. © 2016, Archana Sharma Foundation of Calcutta.

引用

页码：61 / 66

页数：5