Non-pungent Capsicum contains a deletion in the capsaicinoid synthetase gene, which allows early detection of pungency with SCAR markers

Choong Jae Lee, Eun Young Yoo, Joo Hyun Shin, Jemin Lee, Hee Sook Hwang, Byung Dong Kim

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

The capsaicinoid synthetase (CS) gene cosegregated perfectly with the C locus, which controls the presence of pungency, in 121 F2 individuals from a cross between 'ECW123R' and 'CM334', both of Capsicum annuum. We concluded that CS and C are tightly linked. Sequence analysis of the genes of four pungent and four non-pungent pepper lines showed that the non-pungent peppers had a 2,529 bp-deletion in the 5′ upstream region of CS. We have developed molecular markers of the C locus to detect pungency at the seedling stage. Based on the deleted sequence, we developed five SCAR markers, two of them being codominant. These SCAR markers will be useful for easy, accurate, and early detection of non-pungent individuals in breeding programs.

Original languageEnglish
Pages (from-to)262-267
Number of pages6
JournalMolecules and Cells
Volume19
Issue number2
StatePublished - 2005

Keywords

  • Capsaicinoid Synthetase (CS)
  • Capsicum annuum
  • Pungency
  • Sequence- characterized Amplified Regions (SCAR) Marker

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