CHIANG MAI UNIVERSITY JOURNAL OF NATURAL SCIENCES

Volume 19, No. 02, Month APRIL, Year 2020, Pages 164 - 175

First cytogenetic study of green chromis, chromis viridis (perciformes, pomacentridae) by conventional staining and ag-nor banding techniques

Nuntaporn Getlekha and Alongklod Tanomtong

Abstract Download PDF

This work represents the first cytogenetics analysis conducted on the green chromis, Chromis viridis (Cuvier, 1830) from Thailand. Mitotic chromosomes were prepared from the anterior kidney. The cell suspensions were harvested by in vivo colchicine treatment. The slides were prepared by conventional air-drying method. Chromosomes were analyzed after the conventional and Ag-NOR staining techniques. The results showed that C. viridis has 2n=48 (48t), the fundamental number (NF) was 48 and no heteromorphic sex chromosomes were indentified. NORs were located on subcentomeric region of long arms of the 6th telocentric chromosome pair.

Keywords

Chromosome, Karyotype, Nucleolar organizer region, Damselfishes, Perciformes

---