Summary

Genetic Discrimination of Amomum longiligulare T.L.Wu in  Quan Chu Commune, Dai Tu District, Thai Nguyen Province Revealed by DNA (RAPD-PCR) Markers

Preliminary data on genetic diversity among accessions of Amomum longiligulare T.L.Wu cultivated in Quan Chu commune, Dai Tu district, Thai Nguyen province were revealed by DNA (RAPD-PCR) analyses. In accessions of A. longiligulare cultivated in Quan Chu, there is existed two distinct types of fruit: big and small ones. By employing the RAPD-PCR technique with 15 random primers, this study showed a relatively low polymorphism among these accessions. Only two markers appeared to be specific for fruit type polymorphic forms, ie. OPA3₆₅₀ (for big fruit) and OPA3₅₅₀ (small fruit). Nevertheless, 6 markers present in the both fruit polymorphic forms found in Quan Chu were distint from those of Amomum longiligulare T.L.Wu cultivated in another location (Xuan Mai, Hoa Binh).

Keywords: Amomum longiligulare T.L.Wu; fruit shape; genetic polymorphism; RAPD markers.

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