Beet is considered a difficult breeding object due to its biological peculiarities that make it obtain hybrid seed progeny. In cross-pollinated crops, the maximum hybridization achieved by using sterile mother plants, which are extremely rare in nature. Inbreeding one of ways isolate genotypes with cytoplasmic male sterility, controlled recessive alleles nuclear genes and S-factor mitochondrial...

The possibility of occurrence of some rearrangements inside and or around coxII and atp6 genes and their relationship with male sterility in rice lines having wild abortive (WA)  cytoplasm was studied. Two sterile (IR58025A and IR62829A) and two maintainer lines (IR58025B and IR62829B) were used. Radioactive Southern blotting was employed to carry out the experiments. The hybridization of coxII...

Variability in the cultivated germplasm for economic traits such as resistance to rice tungro virus, sheathblight, yellow stem borer, drought and salt tolerance is limited. This necessitated search for the genes in secondary and tertiary gene pool of genus Oryza. Fortunately, wild species are an important reservoir ofuseful genes for resistance to major disease, pest and tolerance t...