Identification of Unwanted Plant Species (Weeds) among Seeds for Sale
Diagnosing prohibited noxious weed species that cannot be distinguished visually from other desired plant varieties
Available for License
US Utility Patent: US 9963750
Eric L. Patterson
Several Amaranthus species are very common and are prohibited noxious weeds (e.g., palmeri and tuberculatus); these seed species cannot be reliably visually identified from other Amaranthus species (e.g. retroflexus, hybridus, and spinosus). This invention describes a DNA genotyping method to detect either Palmer amaranth or waterhermp in a mixture of bulked Amaranthus seeds.
Investigators at Colorado State University developed a novel assay to identify polymorphisms which identify each of the nine Amaranthus species. Specifically, this assay is used to detect at minimum one Palmer amaranth seed in 50 seeds, as well as identifying waterhemp at the same ratio. Further, this assay detects regions in Amaranthus species which contain sequence polymorphisms that enable the identification of each of nine Amaranthus species (A. palmeri, A. tuberculatus, A. albus, A. spinosus, A. blitoides, A. arenicola, A. hybridus, A. powellii, and A. retroflexus).
- Identification of Palmer amaranth at a 1 in 50 seed ratio (or better)
- Uses reliable, robust industry standard genotyping methodology
- Assay validated using blind samples
Last updated: November 2019