摘要
采用PHA和秋水仙素体内注射,取鱼的肾细胞对唇鲮的染色体进行研究。结果表明,唇鲮染色体数目2n=50,其中有4对中部着丝点染色体(m);5对亚中部着丝点染色体(sm);6对亚端部着丝点染色体(st)和10对端部着丝点染色体(t);其核型公式为2n=8m+10 sm+12 st+20 t,NF=68。与所属的野鲮亚科其他鱼类染色体核型比较,唇鲮是本亚科鱼类中相对原始的类型之一。
The karyotype of Semilabeo notabilis Peters was studied by examining the fish kidney cell by injected with PHA and colchicines. The results indicated that the chromosome number was 2n = 50, including 4 pairs of metaeentrics （m） ,5 pairs of submetacentrics（ sm）, 6 pairs of subtelocentrics（st） and 10 pairs of teloeentrics（t）. The chromosome formula was 2n = 8m ＋ 10sm ＋ 12st ＋ 20t, and NF = 68. Through comparing with the karyotypes of other fishes of Labeoninae,Semilabeo notabilis Peters belonged to one of the relatively primitive group in Labeoninae.
出处
《山地农业生物学报》
2008年第6期508-511,521,共5页
Journal of Mountain Agriculture and Biology
关键词
唇鲮
染色体
核型
Semilabeo notabilis Peters
chromosome
karyotype
