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Literature DB >> 7117029

Satellite DNA of Drosophila nasuta nasuta and D. n. albomicana: localization in polytene and metaphase chromosomes.

Abstract

The DNA from the two Drosophila nasuta races, D. n. nasuta and D. n. albomicana was investigated by CsCl density gradient centrifugation. D. n. nasuta has one major AT-rich satellite DNA sequence with a density of 1.664 g/cm3, while D. n. albomicana has at least three satellites with densities of 1.674 g/cm3, 1.665 g/cm3 and 1.661 g/cm3. The isolated satellite sequences hybridize in situ to all heterochromatic regions of all metaphase chromosomes of both races. In polytene chromosomes the satellite sequences hybridize exclusively to the chromocenter. All chromosomal regions hybridizing with the satellites show also bright quinacrine fluorescence.

Entities: Chemical Species

Mesh：

Substances：
DNA, Satellite

Year: 1982 PMID： 7117029 DOI： 10.1007/bf00330358

Source DB: PubMed Journal: Chromosoma ISSN： 0009-5915 Impact factor: 4.316

18 in total

Review 1. The arrangement and evolution of highly repeated (satellite) DNA sequences with special reference to Drosophila.

Authors: R Appels; W J Peacock
Journal: Int Rev Cytol Suppl Date: 1978

2. Acetylation of chromosome squashes of Drosophila melanogaster decreases the background in autoradiographs from hybridization with [125I]-labeled RNA.

Authors: S Hayashi; I C Gillam; A D Delaney; G M Tener
Journal: J Histochem Cytochem Date: 1978-08 Impact factor: 2.479

8. The chromosomes of two Drosophila races: D. nasuta nasuta and D. n. albomicana. I. Distribution and differentiation of heterochromatin.

Authors: H A Ranganath; K Hägele
Journal: Chromosoma Date: 1982 Impact factor: 4.316

9. Two AT-rich satellite DNAs in the chironomid Glyptotendipes barbipes (Staeger): isolation and localization in polytene chromosomes of G. barbipes and Chironomus thummi.

Authors: E R Schmidt
Journal: Chromosoma Date: 1980 Impact factor: 4.316

10. Effect of different denaturing agents on the detectability of specific DNA sequences of various base compositions by in situ hybridisation.

Authors: L Singh; I F Purdom; K W Jones
Journal: Chromosoma Date: 1977-04-20 Impact factor: 4.316

4 in total

Satellite DNA of Drosophila nasuta nasuta and D. n. albomicana: localization in polytene and metaphase chromosomes.

Review 1. The arrangement and evolution of highly repeated (satellite) DNA sequences with special reference to Drosophila.

2. Acetylation of chromosome squashes of Drosophila melanogaster decreases the background in autoradiographs from hybridization with [125I]-labeled RNA.

Review 3. Functional aspects of satellite DNA and heterochromatin.

4. Satellite DNA sequences in Drosophila virilis.

5. Reptitive DNA sequences in drosophila.

6. Repeated sequences in the DNA of Drosophila and their localization in giant chromosomes.

Review 7. Molecular arrangement and evolution of heterochromatic DNA.

8. The chromosomes of two Drosophila races: D. nasuta nasuta and D. n. albomicana. I. Distribution and differentiation of heterochromatin.

9. Two AT-rich satellite DNAs in the chironomid Glyptotendipes barbipes (Staeger): isolation and localization in polytene chromosomes of G. barbipes and Chironomus thummi.

10. Effect of different denaturing agents on the detectability of specific DNA sequences of various base compositions by in situ hybridisation.

1. Karyotype differentiation among members of the immigrans species group of Drosophila.

2. An allozyme phylogeny of some members of the immigrans species group of Drosophila.

3. Mechanisms of quinacrine binding and fluorescence in nuclei and chromosomes.

4. Hybridization, transgressive segregation and evolution of new genetic systems in Drosophila.