高白鲑（Coregonus peled，鲑形目）的染色体研究。

Chromosome study of peled (Coregonus peled, Salmoniformes).

作者信息

Kirtiklis Lech, Jankun Małgorzata

机构信息

Department of Zoology, Faculty of Biology, University of Warmia and Mazury in Olsztyn, Poland.

出版信息

Folia Biol (Krakow). 2004;52(3-4):159-64. doi: 10.3409/1734916044527584.

DOI:10.3409/1734916044527584

PMID:19058554

Abstract

Chromosomes of Coregonus peled were examined by Giemsa, CMA3, Ag-NOR and C-banding. The karyotype of peled had a diploid number 2n=76, arm number NF=96 and consisted of twenty meta-submeta chromosomes and 56 subtelo-acrocentric chromosomes. C-positive blocks of heterochromatin were observed on the telomeric regions of meta- and submetacentric chromosomes. Pairs no. 1 and 11 had short arms, completely heterochromatic. The NOR was observed at one acrocentric pair, no. 11. Arm length polymorphism was observed on the NOR-bearing pair.

摘要

采用吉姆萨染色、CMA3、银染核仁组织区（Ag-NOR）和C带技术对高白鲑的染色体进行了检测。高白鲑的核型为二倍体数2n=76，臂数NF=96，由20条中着丝粒-亚中着丝粒染色体和56条近端着丝粒-端着丝粒染色体组成。在中着丝粒和亚中着丝粒染色体的端粒区域观察到C阳性异染色质块。第1对和第11对染色体有短臂，完全为异染色质。在第11对端着丝粒染色体上观察到核仁组织区。在携带核仁组织区的染色体对上观察到臂长多态性。