Isolation and Characterization of a cDNA Encoding the Cysteine Proteinase Inhibitor, Induced upon Flower Maturation in Carnation Using Suppression Subtractive Hybridization

Ji Young Kim, Young Soo Chung, Kyung Hee Paek, Young In Park, Jeong Kook Kim, Sun Nam Yu, Boung Jun Oh, Jeong Sheop Shin

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The suppression subtractive hybridization (SSH) method was used to isolate differentially expressed genes during carnation flower maturation. Five cDNA clones, designated as carnation flower maturation-induced (CFMI), were verified as flower maturation-induced cDNAs. Sequence analysis of five CFMI (CFMI-5, CFMI-6, CFMI-7, CFMI-9, and CFMI-10) clones revealed that one of the clones, CFMI-5, showed high sequence similarity to the cysteine proteinase inhibitor gene, predicted to be involved in flower maturation. The full length cDNA clone CFMI-5 was 531 nucleotides (nts) long and consisted of an open reading frame of 294 nucleotides, encoding a 98 amino acid protein, 12 nucleotides of 5′-untranslated region and 3′-untranslated region (225 nts) with a poly(A)+ tail. The predicted CFMI-5 amino acid sequence had a conserved sequence Gln-Val-Val-Ala-Gly, which corresponds to the active site of proteinase inhibition. Northern blot analysis revealed tissue-specific expression of CFMI-5 transcripts, as the transcripts were expressed preferentially in petals and styles. A PCR-based cDNA subtraction method, termed suppression subtractive hybridization, was identified as a rapid method to screen differentially expressed genes in a short time.

Original languageEnglish
Pages (from-to)392-397
Number of pages6
JournalMolecules and Cells
Volume9
Issue number4
Publication statusPublished - 1999 Aug 31

Fingerprint

Dianthus
Cysteine Proteinase Inhibitors
Complementary DNA
Nucleotides
Clone Cells
Subtractive Hybridization Techniques
Genes
Conserved Sequence
5' Untranslated Regions
3' Untranslated Regions

Keywords

  • Carnation Flower Maturation-induced
  • Differential Gene Expression
  • Flower Maturation
  • Suppression Subtractive Hybridization
  • Tissue-specific Gene

ASJC Scopus subject areas

  • Cell Biology
  • Genetics
  • Molecular Biology

Cite this

Isolation and Characterization of a cDNA Encoding the Cysteine Proteinase Inhibitor, Induced upon Flower Maturation in Carnation Using Suppression Subtractive Hybridization. / Kim, Ji Young; Chung, Young Soo; Paek, Kyung Hee; Park, Young In; Kim, Jeong Kook; Yu, Sun Nam; Oh, Boung Jun; Shin, Jeong Sheop.

In: Molecules and Cells, Vol. 9, No. 4, 31.08.1999, p. 392-397.

Research output: Contribution to journalArticle

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