Structure of melon rDNA and nucleotide sequence of the 17?25S spacer region
- 1 November 1988
- journal article
- research article
- Published by Springer Nature in Theoretical and Applied Genetics
- Vol. 76 (5), 673-680
- https://doi.org/10.1007/bf00303512
Abstract
Restriction enzyme and hybridization analysis of melon nuclear DNA suggests a homogenous rDNA population with a repeat unit of 10.2 kb. Several full length Hind III rDNA repeat units were cloned and one of these is described in detail. The regions coding for 25S, 17S and 5.8S rRNAs were located by crossed-contact hybridization and R-loop mapping. Introns were not observed. The nucleotide sequence of the internal transcribed spacer and flanking regions was determined and compared with the corresponding region from rice rDNA by dot matrix analysis. In addition, the extent of gross sequence homology between cloned melon and pea rDNA units was determined by heteroduplex mapping.This publication has 44 references indexed in Scilit:
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