2011•Yunnan Nongye Daxue xuebaoRequires access

The Correlation Analysis between Blast Resistance and Genetic Diversity of 39 Yunnan Glutinous Rice Varieties

Yunyue Wang

Abstract

Rice blast resistance of 39 Yunnan glutinous rice varieties was studied by inoculation of eight dominative Yunnan rice blast races in greenhouse.Results showed that 24 varieties were high resistance,resistance and medium resistance,15 varieties were medium susceptibility respectively,and no varieties were susceptibility and high susceptibility.Genetic diversity of the 39 rice varieties was analyzed by 24 SSR(simple sequence repeat) markers.Results showed abundant genetic variation of these varieties.Cluster analysis showed all varieties could be obviously divided into Indica and Japonica.And no significant correlation was found between blast resistance and genetic diversity of them.

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Key concepts: Genetic diversity, Japonica rice, Biology, Japonica, Resistance (ecology), Inoculation, Horticulture, Cultivar