Leaf-rust resistance and androgenesis were studied in the anther cultures of Triticum aestivum L., which included Saratovskaya 29 cultivar, the isogenic line Ps29, and three F1 hybrids (L503/S55, L504/S58, ATS7/L1063) with 7DS-7DL-7Ae#1L translocation of Lr19 gene (Lr19 translocation) from Agropyron elongatum (Host.) P.B. The Lr19 translocation was shown to affect the induction of embryogenesis and green plant regeneration. The frequencies of Lr19 translocation differed in F2 hybrids obtained by traditional hybridization and in sets of DH3 lines obtained in F1 anther cultures derived from the same combinations of T. aestivum parental forms. The number of leaf-rust resistant genotypes tended to decrease. The frequency of Lr19 translocation in the set of DH3 lines derived from F1 L504/S58 was significantly lower than in other sets of DH3 lines and F2 hybrid populations.
Russian Journal of Genetics – Springer Journals
Published: Dec 28, 2004
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