J. Brown

Publications177
h-index44
Citations7,248
Highly Influential Citations543
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Geminivirus strain demarcation and nomenclature
TLDR
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”.
A phylogeographical analysis of the Bemisia tabaci species complex based on mitochondrial DNA markers
TLDR
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.
A newly discovered bacterium associated with parthenogenesis and a change in host selection behavior in parasitoid wasps
TLDR
It is reported that an undescribed bacterium is vertically transmitted and associated with thelytokous parthenogenetic reproduction in Encarsia, a genus of parasitoid wasps and suggested that EB may modify the behavior of its wasp carrier in a way that enhances its transmission.
Molecular markers for the identification and global tracking of whitefly vector-Begomovirus complexes.
  • J. Brown
  • Biology
    Virus research
  • 1 November 2000
Diversity of Prokaryotes Associated with Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae)
TLDR
The composition and diversity of prokaryotic symbionts associated with biotypes or haplotypes of the whitefly Bemisia tabaci Gennadius were examined for collections from representative host plants and different geographical locations worldwide.
Whitefly-transmitted geminiviruses and associated disorders in the Americas and the Caribbean Basin.
TLDR
Historical and contemporary penpectins on the status of the whitcfIy-t~mittcd grminivinrses in the Americas and Caribbean Basin are presented, with pathogens considered the most numerous and widespread group of whitefly-transrnitttd viruses.
A distinct Bemisia tabaci (Gennadius) (Hemiptera: Sternorrhyncha: Aleyrodidae) genotype cluster is associated with the epidemic of severe cassava mosaic virus disease in Uganda
TLDR
Comparison of mitochondrial cytochrome oxidase I gene sequences for Ug1 and Ug2 and well‐studied B. tabaci reference populations indicated that the two Ugandan populations exhibited ≈ 8% divergence, suggesting they represent distinct sub‐Saharan African lineages.
Recommendations for the classification and nomenclature of the DNA-β satellites of begomoviruses
TLDR
Pairwise comparisons of all available full-length DNA-β sequences indicate that the minimum numbers of pairs occur at a sequence identity of 78%, which is proposed as the species demarcation threshold for a distinct DNA- β, and a naming convention for the satellites is proposed based upon the system already in use for geminiviruses.
Chromosomal location of a gene for resistance to septoria tritici blotch (Mycosphaerella graminicola)in the hexaploid wheat ’Synthetic 6x’
TLDR
A septoria tritici blotch resistance gene, named Stb5, was identified using the M. graminicola isolate IPO94269 and mapped on the short arm of chromosome 7D, near the centromere, in a population of single homozygous chromosome-recombinant lines for the 7D chromosome.
The core region of the coat protein gene is highly useful for establishing the provisional identification and classification of begomoviruses
TLDR
An informative molecular marker is described that permits provisionalBegomovirus identification and classification using a begomoviral sequence that is smaller than the presently accepted, but less accessible CP sequence.
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