Spice crop

Spice crop
  • In pepper molecular markers are used for detecting sex of the plants at young stage or for phylogenetical studies.
  • Molecular markers like RAPD, AFLP and ISSR polymorphism were used to characterize important cultivars, varieties and related species of black pepper to develop fingerprints and to study the inter relationship.
  • Attempts are being made to isolate genes that could offer resistance to foot rot caused by Phytophthora capsici and clone coat protein genes for conferring resistance to viral diseases.
  • Attempts are made to clone resistance genes from allied species of Piper, namely P.colubrinum and use of markers for developing mapping population. Significant variation in DNA amount was observed among 9 species of Piper.
  • The DNA amount of a wild octoploid accession of P. nigrum was approximately double that of a cultivated tetraploid variety of the same species.
  • In vanilla RAPD and AFLP profiles coupled with morphological characters can be utilized to assess the variability and hybrid nature of genotypes and of successful interspecific hybridization and production of hybrids.

Last modified: Monday, 2 April 2012, 11:27 PM