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Judith K. Brown

Researcher at University of Arizona

Publications -  303
Citations -  16919

Judith K. Brown is an academic researcher from University of Arizona. The author has contributed to research in topics: Begomovirus & Plant virus. The author has an hindex of 61, co-authored 277 publications receiving 15333 citations. Previous affiliations of Judith K. Brown include John Innes Centre.

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Geminivirus strain demarcation and nomenclature

TL;DR: The status of geminivirus species and strain demarcation is reviewed as well as providing updated isolate descriptors for a total of 672 begomovirus isolates, and several others previously classified as “strains” have been upgraded to “species”.
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A phylogeographical analysis of the bemisia tabaci species complex based on mitochondrial DNA markers

TL;DR: The 16S and COI sequence data indicate that the B‐biotype originated in the Old World and is most closely related to B‐like variants from Israel and Yemen, with the next closest relative being a biotype from Sudan.
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Revision of Begomovirus taxonomy based on pairwise sequence comparisons

TL;DR: Revised guidelines for the classification and nomenclature of begomoviruses are proposed and genome-wide pairwise identities of 91 % and 94 % are proposed as the demarcation threshold for begomviruses belonging to different species and strains, respectively.
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Geminivirus transmission and biological characterisation of Bemisia tabaci (Gennadius) biotypes from different geographic regions.

TL;DR: The recently identified “B” biotype, characterised by a diagnostic esterase banding pattern and by its ability to induce phytotoxic responses in squash, honeysuckle and nightshade was readily distinguished from non-’B’ biotype populations.