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Chromosome study of peled (Coregonus peled, Salmoniformes)

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Kirtiklis L., Jankun M.

Folia Biologica

2004

vol. 52

issue 3-4

159-164

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. TheNORwas observed at one acrocentric pair, no. 11. Arm length polymorphism was observed on the NOR-bearing pair.

Chromosome banding studies by replication and restriction enzyme treatment in vendace (Coregonus albula) (Salmonidae, Salmoniformes)

81%

Jankun M., Ocalewicz K., Mochol M.

Folia Biologica

2004

vol. 52

issue 1-2

47-51

Chromosome banding studies were performed in vendace, Coregonus albula. Original data on distribution of early and late replication regions, restriction sites (AluI, DdeI, HinfI and HaeIII) on chromosomes in this coregonid fish have been used to analyse karyotype heterochromatin differentiation. Heterochromatic bands (C-positive and not digested by restriction enzymes) have been identified as late replicating regions. Extra bands produced by the applied methods have permitted the identification of several homologous pairs. The centromeres were differentially digested by the restriction enzymes. The studied population seems to be homogenic regarding karyotype characteristics.

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2 Folia Biologica

2 2004

2 Jankun M.

1 Kirtiklis L.

1 Mochol M.

1 Ocalewicz K.

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Chromosome study of peled (Coregonus peled, Salmoniformes)

Chromosome banding studies by replication and restriction enzyme treatment in vendace (Coregonus albula) (Salmonidae, Salmoniformes)