Comparison of Genetic Diversity between the Local Cultivated Non-aromatic and Aromatic Rice in Guangxi Using SSR Markers

16 simple sequence repeat(SSR) markers located on 12 chromosomes of rice genome were selected to assess the allelic diversity of 42 rice genotypes,including 24 local cultivated non-aromatic rice and 18 aromatic rice in Guangxi.The results showed that 4.38 and 3.44 alleles per locus in average were detected,with ranges from 2 to 7 and from 2 to 9 in non-aromatic and aromatic rice,respectively.Average polymorphism information content(PIC) was 0.53 and 0.41 in non-aromatic and aromatic rice,respectively,and average genetic multiplicity index(Hs) was 0.60 and 0.47.The results indicated that genetic diversity was higher in non-aromatic rice than in aromatic rice.The cluster analysis showed that non-aromatic rice and aromatic rice from Guangxi were obviously clustered into two different groups,indicating the great genetic difference between them.