Molecular Variation of Satellite DNAβ Molecules Associated with Malvastrum yellow vein virus and Their Role in Pathogenicity | Zendy

Wei Guo | Zendy; Tong Jiang | Zendy; Xian Zhang | Zendy; Guixin Li | Zendy; Xueping Zhou | Zendy

Open Access

Molecular Variation of Satellite DNAβ Molecules Associated with Malvastrum yellow vein virus and Their Role in Pathogenicity

Author(s) -

Wei Guo,

Tong Jiang,

Xian Zhang,

Guixin Li,

Xueping Zhou

Publication year - 2008

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.02461-07

Subject(s) - nicotiana benthamiana , biology , begomovirus , dna , infectivity , satellite dna , virus , genetic diversity , virology , satellite , dna sequencing , genetics , gene , plant virus , genome , sociology , population , demography , engineering , aerospace engineering

Previous studies have found that the diversity of begomovirus-associated DNA beta satellites is related to host and geographical origin. In this study, we have cloned and sequenced 20 different isolates of DNA beta molecules associated with Malvastrum yellow vein virus (MYVV) isolated from Malvastrum coromandelianum plants in different geographical locations of Yunnan Province, China. Analyses of their molecular variation indicate that the satellites are clustered together according to their geographical location but that they have only limited sequence diversity. Infectivity tests using infectious clones of MYVV and its associated DNA beta molecule indicate that MYVV DNA beta is indispensable for symptom induction in Nicotiana benthamiana, N. glutinosa, Petunia hybrida, and M. coromandelianum plants. Furthermore, we showed that MYVV interacts functionally with heterologous DNA beta molecules in N. benthamiana plants.

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