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Comparison of the genomes of two Xanthomonas pathogens with differing host specificities
TLDR
The genus Xanthomonas is a diverse and economically important group of bacterial phytopathogens, belonging to the γ-subdivision of the Proteobacteria, and several groups of strain-specific genes are identified and proposed mechanisms that may explain the differing host specificities and pathogenic processes are proposed.
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The genome sequence of the plant pathogen Xylella fastidiosa
TLDR
The complete genome sequence of X. fastidiosa clone 9a5c is reported, providing direct evidence of phage-mediated horizontal gene transfer and indicating that the molecular basis for bacterial pathogenicity is both conserved and independent of host.
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A palaeobiogeographic model for biotic diversification within Amazonia over the past three million years
TLDR
The history of Psophia, in combination with new geological evidence, provides the strongest direct evidence supporting a role for river dynamics in Amazonian diversification, and the absence of such a roles for glacial climate cycles and refugia.
View on Royal Society
Comparative Analyses of the Complete Genome Sequences of Pierce's Disease and Citrus Variegated Chlorosis Strains of Xylella fastidiosa
TLDR
The genome sequence of X. fastidiosa (Temecula strain) is reported and it is concluded that these two organisms have identical metabolic functions and are likely to use a common set of genes in plant colonization and pathogenesis, permitting convergence of functional genomic strategies.
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The assembly of montane biotas: linking Andean tectonics and climatic oscillations to independent regimes of diversification in Pionus parrots
TLDR
Phylogenetic and biogeographic analyses of species in the parrot genus Pionus are used to demonstrate that standing diversity within montane lineages is directly attributable to events of Earth history, and support a mechanistic link between diversification and Earth history.
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Nuclear and mitochondrial phylogeography of the Atlantic forest endemic Xiphorhynchus fuscus (Aves: Dendrocolaptidae): biogeography and systematics implications.
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Connections between the Atlantic and the Amazonian forest avifaunas represent distinct historical events
AbstractThere is much evidence to support past contact between the Atlantic and the Amazon forests through the South American dry vegetation diagonal, but the spatiotemporal dynamics of this contact…
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Phylogeography of Xiphorhynchus fuscus (Passeriformes, Dendrocolaptidae): vicariance and recent demographic expansion in southern Atlantic forest
TLDR
The data did not support the primary influence of geographical barriers or rivers in the intraspecific diversification of X. fuscus in the southern Atlantic forest, but supported the influence of isolation by geographical distance, recent vicariance events, and demographic expansions apparently related to Pleistocene and Holocene forest dynamics.
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Phylogenetic relationships and historical biogeography of neotropical parrots (Psittaciformes: Psittacidae: Arini) inferred from mitochondrial and nuclear DNA sequences.
TLDR
Estimates suggest that the Neotropical parrots shared a common ancestor with Australian parrots 59 Mya, well before Australia separated from Antarctica and South America, implying that ancestral parrots were widespread in Gondwanaland, and indicated that amazons and allies are in turn a sister group to parrotlets.
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Phylogenetic relationships, diversification and biogeography in Neotropical Brotogeris parakeets
TLDR
A molecular phylogenetic analysis of Brotogeris (Psittacidae) is presented, test the monophyly of the genus, delineate the basal taxa within it, uncover their phylogenetic relationships, and perform temporal and spatial comparative analyses to help elucidate the historical biogeography of the Neotropical region.
View on Wiley
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