Development of diagnostic SNP markers and a novel SNP genotyping assay for distinguishing opium poppies

Chang, Miwha; Kim, Joo-Young; Lee, Haeyong; Lee, Eun-jung; Lee, Won-Hae; Moon, Sangook; Choe, Sanggil; Choung, Chong Min

doi:10.1016/j.forsciint.2022.111416

Cited by 4 publications

(1 citation statement)

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“…These have proven themselves, especially in the identification of narcotic and non-narcotic types of Papaver species. For this purpose, a Pscp1 variable number of tandem repeat (VNTR) markers derived from a variant region of the chloroplast genome [20] as well as SNP markers [21] were developed and validated. Different Papaver species were also distinguished using many SSR markers [22].…”

Section: Discussionmentioning

confidence: 99%

New Set of EST-STR Markers for Discrimination of Related Papaver somniferum L. Varieties

Kaňuková,

Ondreičková,

Mihálik

et al. 2023

Life

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Papaver somniferum L. is cultivated for its edible seeds and for the production of alkaloids. A serious problem in seed trade and processing is the intentional mixing of excellent food-quality seeds with non-food-grade-quality seeds. Tracking the correct or illegitimate handling of seeds requires an efficient method for discrimination and individualization of poppy varieties. As in human and animal forensics, DNA variable regions containing short tandem repeats (STRs) located either in non-coding DNA or in gene sequences (EST-STRs) are preferred markers for discrimination between genotypes. Primers designed for 10 poppy EST-STR loci not analyzed so far were tested for their discriminatory ability on a set of 23 related P. somniferum L. genotypes. Thirty-three EST-STR alleles were identified together. Their polymorphic information content (PIC) values were in the range of 0.175–0.649. The PI value varied in the range of 0.140–0.669, and the cumulative PI was 1.2 × 10−5. PIsibs values varied between 0.436 and 0.820 and the cumulative value was lower (5.0 × 10−3). All analyzed genotypes were distinguished mutually, each with its own unique EST-STR profile. These newly developed EST-STR markers more effectively discriminated P. somniferum L. genotypes, even those genotypes whose DNA profiles were previously identical.

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Section: Discussionmentioning

confidence: 99%