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Molecular analysis was performed with 88 barley accessions, including varieties cultivated in Belarus and those obtained from the collection of the All-Russian Institute of Plant Industry (IPI). A marker directed to the single nucleotide substitution (SNP) C698 → T of the Bmy1 β-amylase gene showed that the Sd2H and Sd3 alleles were absent from the Belarussian varieties. Five accessions with the Bmy1 alleles determining thermostable isoforms of β-amylase I were identified among the accessions from the IPI collection. [ABSTRACT FROM AUTHOR]

The inheritance of nuclear morphological and molecular markers was studied in hybrid reciprocal populations of barley alloplasmic lines. A number of loci displayed a distortion of the Mendelian inheritance and a decrease in recombination rate depending on the cross direction and cytoplasm of parental forms. The segregations shifted towards both the mutant recessive and normal dominant phenotypes. The effect of cytoplasm on transmission and recombination of nuclear loci was shown. [ABSTRACT FROM AUTHOR]