里海南部海盆梭子鱼核型分析

M. Khoshkholgh, A. Alavi, S. Nazari
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引用次数: 2

摘要

通过检测从鳃上皮细胞和肾细胞中获得的中期染色体分布,研究了里海南部安扎里湖梭子鱼的核型。用7%吉姆萨染色液染色15分钟,光镜下观察。为制备核型,拍摄了适当的中期片。所有标本的二倍体数目为50条染色体,核型由12个稳中心、24个亚稳中心、14个亚远中心组成,基本数目(NF)为86。该物种最大的染色体是一对异心染色体。根据染色体的类型,该物种的核型与以往的研究结果不同,这可能归因于该物种存在不同的种群。尽管二倍体数目保守,但核型结构的数据有助于表征该物种的细胞遗传学特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Karyotypic characterization of the pike, Esox lucius from the south Caspian Sea basin
The karyotype of pike from Anzali lagoon in the south Caspian Sea basin have been investigated by examining metaphase chromosomes spreads obtained from gill epithelial and kidney cells. The chromosomes spreads were stained with 7% Giemsa solution for 15 min and examined under a light microscope. Appropriate metaphase plates were photographed in order to prepare karyotype. All specimens had a diploid number of 50 chromosomes, with a karyotype constituted by 12 metacentric‏, 24 submetacentric, 14 subtelocentric and fundamental number (NF) of 86. The largest chromosome in this species was a pair of metacentric chromosomes. Based on type of chromosomes, the karyotype of the species differed from the findings of previous studies, which could be attributed to the existence of different populations for this species. Despite the conserved diploid number, the data on the karyotype structure help characterize the cytogenetic profile of this species.
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