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Proportional polyploidization of 5S RNA genes in the ovary ofDrosophila melanogastermutants containing three 5S RNA gene loci

✍ Scribed by Renate Renkawitz-Pohl

Publisher
Springer
Year
1979
Tongue
English
Weight
456 KB
Volume
70
Category
Article
ISSN
0009-5915

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✦ Synopsis

The 5S RNA gene content of polyploid cells of the ovary of Drosophila melanogaster has been compared in animals with two or three gene clusters. The amount of 5S RNA genes is exactly proportional to the number of gene clusters as determined by DNA-RNA filter hybridization. In contrast, the number of rDNA genes in endomitotic cells remains constant regardless of different numbers of nucleolus organizer regions (Spear, 1974).

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The site of 5S RNA genes in primates
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✍ A. S. Henderson; K. C. Atwood; M. T. Yu; Dorothy Warburton πŸ“‚ Article πŸ“… 1976 πŸ› Springer 🌐 English βš– 431 KB

A major site of genes for 5S RNA has been localized in representative members of the family Pongidae by means of hybridization in situ. These genes are shown to be concentrated in the most distal bands of the primate chromosome arm homologous to human chromosome 1q.