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  • Title: Induction and characterization of streptomycin-resistant mutants in Capsicum praetermissum.
    Author: Venkataiah P, Christopher T, Subhash K.
    Journal: J Appl Genet; 2005; 46(1):19-24. PubMed ID: 15741660.
    Abstract:
    Streptomycin-resistant mutants were isolated from mutagenised cotyledon explants of Capsicum praetermissum Heiser & Smith. The explants were mutagenised with N-ethyl-N-nitrosourea, which resulted in a high frequency of streptomycin-resistant mutants (18.0%) and a low frequency of chlorophyll-deficient (albino) mutants (8.0%). Complete streptomycin-resistant plantlets were obtained after rooting of the regenerated green shoots on rooting medium containing 1.0 mg L-1 IAA and 500 mg L-1 streptomycin sulphate. Leaf-segment assay of these plantlets revealed that they were resistant to streptomycin but sensitive to chloramphenicol, kanamycin, lincomycin, and spectinomycin. Reciprocal crosses between streptomycin-resistant and -sensitive plants showed a non-Mendelian transmission of resistance by female parents.
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