Correlation Between Genetic Distance and Yield Heterosis of Hybrid Aromatic Rice

【Objective】 Correlation between genetic distance and heterosis in an important question in hybrid rice breeding.【Method】 The genetic distance of the aromatic rice parents and the relativity analysis were studied by SSR in this article.【Result】 The relativity coefficient was partial to small(-0.257-0.292)between SSR genetic distance and heterosis of four yield traits.The correlation between the genetic distance of the aromatic rice parents selected and the yield heterosis was not significant.【Conclusion】So,SSR markers selected in this study couldn't predict rice heterosis.The research indicated that different or opposite results would be gained with different materials.Thus,the analysis of genetic distance based on molecular markers predicting the yield heterosis need to be studied further.