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Barley yellow dwarf virus-GAV (BYDV-GAV) is one of the most serious viruses on wheat in China. In this study, five BYDV-GAV isolates collected from five regions in Northwestern China were sequenced. The complete genome sequences generated in this study along with nine genome sequences of BYDV-GAV isolates available in GeneBank were compared and analyzed. The comparative analysis indicated that the complete genomes of BYDV-GAV showed a low level of genetic diversity with nucleotide sequence identities ranging between 97.0% and 99.7%, and the RNA-dependent RNA polymerase gene (ORF1 + ORF2) was the most variable within the complete genome. Phylogenetic analysis indicated that the BYDV-GAV isolates in Northwestern China could be divided into two groups. In addition, two potential recombination events were detected among the 14 BYDV-GAV isolates. This study provided a detailed description of molecular characterization of BYDV-GAV in Northwestern China based on the complete genome sequences, which increased the understanding of genetic diversity of barley yellow dwarf viruses.

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extraction method. Polish Journal of Environmental Studies. 19. 1029–1037. Wei, X. et al., 2010. Soil iron fractionation and availability at selected landscape positions in a loessial gully region of northwestern China. Soil

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1238 Cheng, X., S. An, J. Chen, B. Li, Y. Liu and S. Liu. 2007. Spatial relationships among species, above-ground biomass, N, and P in degraded grasslands in Ordos Plateau, northwestern China

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, G. , Luo , W. C. and Denholm , I. ( 2007 ): The biotype and insecticide-resistance status of whiteflies, Bemisia tabaci (Hemiptera: Aleyrodidae), invading cropping systems in Xinjiang Uygur Autonomous Region, northwestern China . Crop

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. J. Hou M. Han 1997 A morphometric method to determine neotectonic activity of the Weihe basin in Northwestern China

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, Hui (eds): Languages and Genes in Northwestern China and Adjacent Regions . Singapore , Springer , pp. 55 – 78 . Xue , Y. – Zerjal , T. – Bao , W. et al. ( 2005 ): Male

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. Wang , CA , Liu , YH , Zhang , XM , Che , D . 2011 . A study on coal properties and combustion characteristics of blended coals in northwestern China . Energy Fuels . 25 : 3634 – 3645 10.1021/ef200686d . 51

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Central European Geology
Authors: István Vető, Katalin Báldi, Stjepan Ćorić, Magdolna Hetényi, Attila Demény, and István Futó

possible bio-precursor of Jurassic mudstone source rocks in the northern Qaidam Basin, northwestern China . – Science in China Series D: Earth Science , 52 , pp. 647 – 654 . 10.1007/s11430

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