中国鲤科鱼类染色体组型的研究——（Ⅲ）.鳑鲏亚科七种鱼的染色体的比较分析

中国鲤科鱼类染色体组型的研究——（Ⅲ）.鳑鲏亚科七种鱼的染色体的比较分析 STUDIES ON THE KARYOTYPES OF CHINESE CYPRINID FISHES Ⅲ. Comparative Analysis of the Chromosomes of Seven Species of Acheilognathid Fishes 洪云汉 first-author 周密 周暾 采用肾细胞培养,空气干燥-Giemsa染色方法,对鳑（鱼皮）亚科7种鱼的染色体进行了比较分析。大鳍刺鳑（鱼皮）、兴凯刺鳑（鱼皮）、越南刺鳑（鱼皮）和彩副鱊都是2n=44 高体鳑（鱼皮）、黑龙江鳑（鱼皮）和中华鳑（鱼皮）均为2n=48.结合鳑（鱼皮）亚科其他鱼类的染色体组型来看,该亚科的染色体组型变化较大,提示可能有大的染色体重排在这些鱼类的物种形成和进化过程中起着重要的作用。根据染色体组型的分析,对该亚科鱼类的分类和亲缘关系进行了初步的讨沦。 The karyotypes of seven species of Acheilognathinae, including Acanthorhodeus macropterus, A. chankaensis, A. tonkinensis, Paracheilognathus imberbis, Rhodeus ocellatus, R. sericeus and R. sinensis, were studied using the chromosomes prepared from cultured kidney cells by air-drying method. All the three species of genus Acanthorhodeus and P. imberbis have 2n=44 chromosomes. The chromosome formulae of A. macropterus, A. chankaensis and P. imberbis are 2n=14m+18sm+12st. t（NF=76）, 2n=14m+14sm+16st （NF=72） and 2n= 14m+18sm+12st（NF=76） respectively. All the three species of genus Rhodeus have diploid chromosomes of 2n=48. The chromosome formula of R. ocellatus is 2n=10m+24sm+14st （NF=82）. The results obtained from this study indicate that the karyotypes of the fishes in this subfamily are not as conservative as in other groups of eyprinid fishes, suggesting that some gross chromosomal rearrangements might have played an important role in the speciation and evolution of aeheilognathid fishes. 1983-02-01 2021-04-01 2