Strains of baker's yeast conventionally used by the baking industry in Japan were tested for the ability to sporulate and produce viable haploid spores. Three isolates which possessed the properties of baker's yeasts were obtained from single spores. Each strain was a haploid, and one of these strains, YOY34, was characterized. YOY34 fermented maltose and sucrose, but did not utilize galactose,...

Segregation distorters are curious, evolutionarily selfish genetic elements, which distort Mendelian segregation in their favor at the expense of others. Those agents include gametocidal factors (Gc), which ensure their preferential transmission by triggering damages in cells lacking them via chromosome break induction. Hence, we hypothesized that the gametocidal system can be adapted for chrom...

Doubled-haploid lines (DHs) are normally produced from F1 plants in maize (Zea mays L.). Several studies have found a low frequency of recombinants doubled haploids that could limit the selection response. Hence, an attempt was made to produce F2 generation verify whether one more round meiotic recombination lead increased genetic variability and assess response selection. The two cross-combina...

Many previous studies have provided evidence for genome changes in polyploids, but there are little data on the overall population dynamics of genome change and whether it causes phenotypic variability. We analyzed genetic, epigenetic, gene expression, and phenotypic changes in approximately 50 resynthesized Brassica napus lines independently derived by hybridizing double haploids of Brassica o...

Combination breeding and mutation are widely used methods in plant breeding. Intensive studies carried out on biotechnological that will allow obtaining homozygous lines a short time populations obtained with these two techniques. Numerous have been by different researchers wheat. There few anther culture response mutagen-treated genotypes. Two bread wheat promising advanced were as the materia...