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Wheat yellow mosaic virus resistance in wheat cultivar Madsen acts in roots but not in leaves

文献类型: 外文期刊

作者: Liu, Cheng 1 ; Suzuki, Takako 2 ; Mishina, Kohei 1 ; Habekuss, Antje 3 ; Ziegler, Angelika 3 ; Li, Chao 1 ; Sakuma, Sh 1 ;

作者机构: 1.Natl Inst Agrobiol Sci NIAS, Tsukuba, Ibaraki 3058602, Japan

2.Hokkaido Res Org, Chuo Agr Expt Stn, Naganuma, Hokkaido 0691395, Japan

3.JKI, D-06484 Quedlinburg, Germany

4.Shandong Acad Agr Sci, Crop Res Inst, Jinan 250100, Peoples R China

5.Natl Agr & Food Res Org NARO, Inst Crop Sci, Tsukuba, Ibaraki 3058602, Japan

关键词: Wheat yellow mosaic virus;Bymovirus;Soil-borne pathogen;Polymyxa graminis;Resistance

期刊名称:JOURNAL OF GENERAL PLANT PATHOLOGY ( 影响因子:1.449; 五年影响因子:1.416 )

ISSN:

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收录情况: SCI

摘要: Wheat yellow mosaic virus (WYMV), a member of Bymovirus, is a plant pathogenic virus transmitted by the soil-borne plasmodiophorid Polymyxa graminis. The in planta titer of the virus must be quantified to elucidate the dynamics of WYMV infection and the mechanism(s) underlying host resistance. Here, we describe a robust and sensitive TaqMan-based real time PCR assay based on the sequence of the WYMV coat protein gene. WYMV was undetectable in either the leaves or roots of plants of WYMV-resistant cultivar Madsen grown in infected soil. However, when Madsen leaves were mechanically inoculated with the virus, viral multiplication was not inhibited, showing that the cultivar's resistance was ineffective in the leaf. The virus was able to move from the virus-inoculated leaf to the stem but not into the roots of Madsen, indicating that Madsen's resistance was effective only in the roots.

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