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Variation in organisation and copy number of ribosomal RNA genes in Petunia hybrida somaclones

Citation

Anderson, S and Lewis-Smith, AC and Chamberlain, M and Smith, SM, Variation in organisation and copy number of ribosomal RNA genes in Petunia hybrida somaclones, Biologia Plantarum, 33, (3) pp. 206-210. ISSN 0006-3134 (1991) [Refereed Article]

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DOI: doi:10.1007/BF02897884

Abstract

The copy number of genes encoding 5S ribosomal RNA has been found to be constant in Petunia hybrida plants regenerated from protoplast and leaf disc-derived callus cultures. However, in one somaclone a heritable change in the length of the major 5S rDNA repeat has arisen. Despite the constant copy number of 5S rRNA genes, that of the 18S25S rRNA genes is found to very by at least ten-fold. The relevance of these findings to ribosomal RNA gene variability and to somaclonal variation is discussed.

Item Details

Item Type:Refereed Article
Keywords:ribosomal RNA, Petunia hybrida
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Plant Physiology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Biological Sciences
Author:Smith, SM (Professor Steven Smith)
ID Code:101595
Year Published:1991
Deposited By:Plant Science
Deposited On:2015-06-26
Last Modified:2018-10-05
Downloads:0

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