These markers can be used for Distinctness, Uniformity and Stability (DUS) tests of variety identification and for marker assisted selection (MAS) in variety improvement and management.
Many test entries did not show any significant variation as compared to Jalmagna in terms of flowering duration, panicles/m2, plant stature as well as other characters that are considered under distinctness, uniformity and stability (DUS) tests.
DUS (Distinctness, Uniformity and Stability) characterization of the mutant HTM-N22 (HTM) vis-à-vis the wild type N22 was carried out for 40 DUS traits to confirm the phenotypic similarity of the mutant to the wild type.
Indeed, in most developed countries, and increasingly in developing nations, seed distribution is only allowed after certification procedures based on the distinctness, uniformity and stability of plant varieties (so-called DUS testing), and the inclusion of either actors and/or varieties into official catalogues (Tripp and Louwaars [1997]).
While farmers are protected against crooked seed distributors and impure seed lots by the establishment of official catalogues and clear insurance or liability regimes, the varieties they would perhaps want to cultivate for agronomical, environmental or cultural reasons fail to meet the requirements of the stringent marketing rules of distinctness, uniformity and stability.
For example, the distinctness, uniformity and stability (DUS) in an aromatic rice variety, Pusa Basmati1, has been established by its precise phenotyping for diverse aroma and grain quality traits and large-scale genotyping of genome-wide SSR markers (Singh et al. 2004).
Regulation on methods of testing the distinctness, uniformity and stability of new varieties of plants.
Distinctness, uniformity and stability (DUS) were noted down at appropriate stages of growth for the mutant and the WT.
These whole genome markers have also played a role in the mapping and variety identification supplementing Distinctness, Uniformity and Stability (DUS) test and product trace ability (44).
Also, the microsatellite STR markers are the method of first choice to complement the DUS (Distinctness, Uniformity and Stability) testing procedure [ 38, 39].
