nucleolar organizer


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Noun1.nucleolar organizer - the particular part of a chromosome that is associated with a nucleolus after nuclear division
anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"
chromosome - a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order; "humans have 22 chromosome pairs plus two sex chromosomes"
References in periodicals archive ?
According with Mariano & Delabie (2013) these complementary regions may indicate nucleolar organizer regions, as has already been observed in other ants, such as Tapinoma nigerrimum (Lorite et al.
Chromosomal localization and activity of nucleolar organizer regions in the dog (Canis familiaris).
23) However, Carrillo et al found no correlation between nucleolar organizer regions and clinical outcomes in a series of benign and malignant myoepithelial tumors.
The number of nucleolar organizer regions (NOR) of neoplastic cells did not differ among groups.
Their topics include the evolutionary role of hybridization and polyploidy in an Iberian cyprinid fish, chromosomal analysis in population structuring and stock identification, nucleolar organizer region markers in identifying and managing rainbow trout stocks reared in Brazil, and applying fluorescence in situ hybridization to genome mapping in fish.
The use of the silver staining technique to reveal the nucleolar organizer region (NOR) showed that chromosome pairs 4 and 6 and the X chromosome in C.
15) Experimental techniques that have been used to differentiate between HAB and RCC include in situ hybridization measuring the expression of telomerase RNA, nucleolar organizer region counts (AgNOR method), and the use of newly described antibodies such as aquaporin 1.
Afterwards, the application of differential staining techniques such as Ag-NORs for nucleolar organizer regions, C-banding for heterochromatin or G-banding for individual chromosome identification allowed the identification of specific chromosome pairs in the karyotypes of bivalve species (see Thiriot-Quievreux 2002, for review).
Studies in our laboratory over the past several years have focused on identifying the nucleolar organizer region (NOR)-bearing chromosomes of North American cyprinid fishes (Amemiya and Gold, 1988, 1990; Amemiya et al.