KERAGAMAN GENETIK 64 AKSESI KUNYIT ASAL INDONESIA BERDASARKAN MARKA P450-BASED ANALOGUE (PBA)

Abstract

<em>Turmeric is a rhizome producing plant with many utilization such as for consumption, medicine, and colorant industries. The development of superior turmeric varieties in Indonesia needs to be supported by genetic diversity information availability. Despite its potential, genetic diversity information of Indonesian turmeric has not been widely observed. A molecular marker is used to address genetic diversity information with the accurate result due to minimum environmental influences. PBA can detect the P450 gene as a functional marker, which is related to the synthesis of secondary metabolites in a wide genome area. Thus, it can be used as an alternative marker to identify genetic diversity. This research aimed to obtain genetic diversity information of 64 turmeric accessions using eight primer sets of P450-Based Analogue (PBA). The study was conducted in the Central Laboratory of Padjadjaran University from June 2019 to January 2020. Results showed that the full 133 bands were detected with a range of allele number 8 - 45 bands and an average of 22.3 bands per allele. PIC analysis showed six primer sets of PBA had high polymorphisms ranged from 0.90 to 0.98, hence categorized </em><em>PBA as a highly informative marker. Cluster analysis divided 64 turmeric accessions into two main clusters based on a similarity index ranged from 0.01 to 0.83. The accession of CL-GTL01 origins from Gorontalo had a low similarity coefficient of 0.01 to the other 64 accessions cluster. On the other hand, CL-NTB01 dan CL-PPB01 had the highest similarity index of 0.83. Based on the PIC value, the total number of polymorphic bands, and genetic distance, it can be concluded that local Indonesian turmeric had wide diversity based on PBA marker.</em>