the most frequent breeding strategy inS. cerevisiae[21,22,23]. If automixis brings together chromosomes that had been separated during meiosis I (non-sister components), it is described as “central fusion” or “first division restitution”...
The observation of only four partially labelled pachytene nuclei of which three were early suggests the acquisition of foci occurs at pachytene stages 1–2 and is a rapid process, as many more such nuclei would have been observed if the process were protracted. Only 3 fully labelled nuclei ...
It can be seen that crossover frequencies are increased more or less uniformly along chromo- some 3 by substituting the H for the C X chromo- some; the apparent lack of any effect in some regions could easily be due to sampling fluctu- ations. The average percentage increase is 11 per...
Recombination typically occurs between homologous chromosomes. In wheat, however, it can also occur between homoeologous chromosomes if a functional Ph1 ( Pairing homoeologous - 1 ) locus is absent ( ph1b ). Recently, the genes for soft kernel trait on the distal 5DS chromosome of common wheat ...
The cross over between probab-ilities occurs in these framings as an important, not negligible aspect. 2. The Case: First VersionSuppose we know that a given pathogen g rarely causes disease f. Doctors often express themselves in this way, without providing any general and precise analysis ...
4. There is evidence indicating but not finally proving that crossing over occurs between H—2 and Ki. 5. The locus of H—2 is distinct from the loci of T, Fu and probably Ki, but its order relative to these loci is not yet determined. Acknowledgments.—The author gratefully ...