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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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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 18S–25S 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 |
| UTAS 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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