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. 1992 Nov;100(3):1171–1176. doi: 10.1104/pp.100.3.1171

Differential Expression and Sequence Analysis of Ribosomal Protein Genes Induced in Stolon Tips of Potato (Solanum tuberosum L.) during the Early Stages of Tuberization 1

Mark A Taylor 1,2,3, Siti A Mad Arif 1,2,3, Stephen R Pearce 1,2,3, Howard V Davies 1,2,3, Amar Kumar 1,2,3, Lesley A George 1,2,3
PMCID: PMC1075762  PMID: 16653101

Abstract

cDNA clones of two genes, TUBS19 and TUBL7, which show a 15- to 20-fold increase in transcript level in the stolon tip during the early stages of tuberization, have been isolated by differential screening. These genes are also expressed in leaves, stems, and roots, and the expression pattern in these organs changes on tuberization. Southern analysis shows that there are similar sequences in the genome of nontuberizing wild-type potato species Solanum brevidens and in Lycopersicon esculentum (tomato). Sequence analysis reveals a high degree of similarity between the TUBS19 cDNA and the eukaryotic S19 ribosomal protein gene. TUBL7 cDNA shows similarity to another eukaryotic ribosomal protein gene, L7.

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