文献类型： 外文期刊

作者： Hajano, J. -U. -D. ² ; Zhang, H. B. ¹ ; Ren, Y. D. ³ ; Lu, C. T. ³ ; Wang, X. F. ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

2.Sindh Agr Univ, Fac Crop Protect, Dept Plant Pathol, Tandojam, Pakistan

3.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China

关键词： Fijivirus;resistance;rice;Rice black streaked dwarf virus;RT-qPCR;visual assessment

期刊名称：PLANT PATHOLOGY （ 影响因子：2.59； 五年影响因子：2.924 ）

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收录情况： SCI

摘要： Rice black streaked dwarf virus (RBSDV) causing rice black streaked dwarf disease is transmitted by the small brown planthopper (SBPH, Laodelphax striatellus) in a persistent propagative manner. The disease is considered among the most destructive in rice production in east and southeast Asia. For sustainable control of the disease, planting resistant cultivars is the most economical and efficient method. The virus content in different rice cultivars was quantified using a TaqMan RT-qPCR assay under greenhouse conditions and the disease was visually assessed in these cultivars in both greenhouse and field conditions. Results revealed significant positive moderate correlation (r=0.3787; P=0.0009) between the virus content and visual disease assessment in the greenhouse under forced inoculation. Among 66 rice cultivars, there was no significant difference in RBSDV genome equivalent copies (GEC) in seven cultivars, namely Lian-dao 9805 (200.2 +/- 12), Liangyou 3399 (206.6 +/- 28), Ningjing 4 (206.6 +/- 28), DaLiang 207 (302.0 +/- 61), X 008 (354.0 +/- 30), Shengdao 301 (658.4 +/- 69) and Liangyou 1129 (679.5 +/- 98). These cultivars were also visually assessed as resistant under greenhouse and field conditions. These cultivars could be used in disease management to reduce the likelihood of epidemics.