Molecular markers associated with leptinine production are located on chromosome 1 in Solanum chacoense

G. Hutvagner, Z. Banfalvi, I. Milankovics, D. Silhavy, Z. Polgar, S. Horvath, P. Wolters, J.P.H. Nap

    Research output: Contribution to journalArticleAcademicpeer-review

    19 Citations (Scopus)

    Abstract

    Leptines of Solanum chacoense are effective natural deterrents against the Colorado potato beetle. Leptines are the acetylated forms of the glycoalkaloids solanine and chaconine and are supposed to be synthesised via hydroxylated derivatives, called leptinines. Inheritance of leptinine production was studied in crosses of closely related S. chacoense genotypes. The segregation data supported a single-gene model for the inheritance of leptinine production. In the segregating F1 population of a S. chacoense cross, AFLP, RFLP and RAPD markers segregating with the leptinine production have been identified. The locus involved in leptinine synthesis was localised to the short arm of chromosome 1 of the potato where a major QTL for solanidine production, and markers with tight linkage to leptine production, have been mapped before. Our data further support the previous finding that the short arm of chromosome 1 is involved in steroid alkaloid synthesis in potato, and suggest that the genes involved in leptinine and leptine production are tightly linked in S. chacoense.
    Original languageEnglish
    Pages (from-to)1065-1071
    JournalTheoretical and Applied Genetics
    Volume102
    DOIs
    Publication statusPublished - 2001

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