ANALYSIS OF THE STRUCTURE AND VARIABILITY OF NUCLEOLAR ORGANIZER REGIONS OF SALMO-TRUTTA BY C-, AG-, AND RESTRICTION ENDONUCLEASE BANDING

被引：66

作者：

SANCHEZ, L

MARTINEZ, P

VINAS, A

BOUZA, C

机构：

[1] Departamento de Biologia Fundamental, Area de Genetica, Universidad de Santiago, Lugo

来源：

CYTOGENETICS AND CELL GENETICS | 1990年 / 54卷 / 1-2期

关键词：

D O I：

10.1159/000132944

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Nucleolar organizer regions (NORs) of brown trout were investigated using C-, Ag-. and restriction endonuclease banding. The presence of constitutive heterochromatin was confirmed by C-banding. Giemsa-staining. C-banding. and Ag-band-ing revealed great variability in the size of the short arm of the NOR-bearing chromosome. This size variation was due in some cases to NOR duplication. Restriction endonuclease digestion induced a specific banding pattern for AM. Ddel. Haelll, Mbol. and Hind. indicating some features about the sequence composition of the NOR-associated heterochromatin. © 1990 S. Karger AG, Basel.

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页码：6 / 9

页数：4

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