Characteristic of Yunnan glutinous rice varieties revealed by the Indica-japonica specified insertion/deletion (InDel) molecular markers.

Utilization of Indica-Japonica heterosis was one of the most important ways to achieve the goal of high yield rice breeding.Indica-Japonica classifications of 181 glutinous rice varieties collected in 17 counties of 7 cities in Yunnan were analyzed by calculating Indica and Japonica gene frequencies on 34 InDel sites of each glutinous rice varieties DNA samples and principal component analysis(PCA).181 Yunnan glutinous rice varieties were classified as 141 typical Indica rice,18 Indica rice,1 Japonicaclinous rice,13 Japonica rice and 8 typical Japonica rice.PCA showed that differentiations of Yunnan glutinous rice were significant.