Brassica rapaL. subsp. campestris (L.) A. R. Clapham
Field mustard (Brassica rapa L. subsp. campestris) is a diploid species with a chromosome set of 2n=20 and an AA genome. In the context of this crop, the term is primarily used to control the homozygosity of lines when developing doubled haploids.
In the reference
7
varieties
crop Field mustard,
where this is mentioned in the description.
Field mustard is a diploid organism. In breeding, ploidy serves as an important indicator when using isolated microspore culture techniques to obtain homozygous lines. In this process, after obtaining a haploid chromosome set, chromosome doubling is performed, restoring the diploid status of the plant, which is confirmed by flow cytometry methods.
For the commercial cultivation of field mustard, ploidy is not a variable trait, as all commercial varieties are diploid. This characteristic does not affect cultivation technology and is not used by agronomists as a criterion for selecting planting material.
General information about the subject — on the page
Ploidy.
Varieties of Field mustard mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.