[Cytogenetic genome stabilization in secalotriticum (x Triticosecale derzhavinii secalotriticum rozenst., et Mittelst., s/RRAABB, 2n = 42)].

Abstract

The article presents the results of cytogenetic research of the genome stabilization in hexaploid secalotriticum F(1-9) (s/RRAABB, 2n = 6x = 42). Nucleo-cytoplasmic specificity and cytogenetic factors of genome stabilization were established in secalotriticum: subspecies specificity of cytotype, genotype specificity of hybrids, origin, polar centromere orientation, division and segregation type of the chromosomes in meiosis. The necessity for developing independent trends in heteroplasmic triticales breeding was substantiated.