• Korean Journal of Ichthyology
• /
• v.29 no.2
• /
• pp.89-93
• /
• 2017

For the karyotype analysis of Liobagrus hyeongsanensis, an endemic Korean torrent catfish, ten females and five males were used from Yangbuk-myeon, Gyeongju-si, Gyeongsangbukdo, Korea. The diploid number of chromosomes was 42, and its karyotype consisted of 30 metacentrics and 12 submetacentrics; 84 FN (fundamental number), with having no polyploidy and sexual dimorphism. The chromosome number was the same as other closely-related species, L. mediadiposalis and L. somjinensis, but their karyotypes showed a clear difference by species. Such result may be related to chromosomal rearrangements by Robertsonian rearrangement with geographical isolation.