Agricultural Research,Education and Extension Organization Iranian Journal of Fisheries Sciences 1562-2916 15 1 2016 01 01 First record of karyotype analysis in Anjak, Schizocypris altidorsalis (Bianco and Banarescu, 1982) from Hamoun Lake, Iran 246 254 114527 10.22092/ijfs.2018.114527 EN M. R. Hedari Salkhordeh A. Gharaei J. Mirdar Harijani Journal Article 2018 01 02 The chromosomal spread and karyotype of Anjak (Schizocypris altidorsalis) from Hamoun Lake were determined using tissue squashing techniques with an injection of 1 mL/100 g body weight of 0.01% colchicines solution. Kidney and gill epithelia tissues were removed and used for karyotype analysis. The analysis of 145 chromosome spreads revealed the diploid chromosome number of this fish, 2n=48 and a fundamental arm number (FN) =88. The diploid complements comprised 12 metacentric pairs, 8 submetacentric pairs, 1 subtelocentric pair and 3 telocentric pairs (12m+8Sm+1St+3t). Total length of the haploid complement equaled 44µm with a range in the length of the shortest and longest chromosome between 0.76-2.78µm. The arm ratio and the centromeric index ranged between l.00- and 0-50 respectively. This is the first report on the chromosome number and karyotype of S. altidorsalis from the Hamoun Lake in Iran.  https://jifro.areeo.ac.ir/article_114527_057f263bdc8e5953fef63936e91820d0.pdf