• Publications
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The phylogenetic history and biogeography of the frankincense and myrrh family (Burseraceae) based on nuclear and chloroplast sequence data.
Molecular phylogenies of an eudicotyledon family previously hypothesized to have a Gondwanan origin, the Burseraceae, are used to test this and other alternative biogeographical hypotheses in light of recalibrated geological events. Expand
Molecular markers indicate that the wheat curl mite, Aceria tosichella Keifer, may represent a species complex in Australia
It is shown that WCM from Australia consists of at least two separate lineages that may represent putative species, and these results have implications for the control of this pest within Australian cereal crops. Expand
Insights into the historical construction of species-rich Mesoamerican seasonally dry tropical forests: the diversification of Bursera (Burseraceae, Sapindales).
The diversification of Bursera suggests that Mesoamerican SDTF richness derives from high speciation from the Miocene onwards uncoupled from habitat shifts, during a period of enhanced aridity resulting mainly from global cooling and regional rain shadows. Expand
To move or to evolve: contrasting patterns of intercontinental connectivity and climatic niche evolution in “Terebinthaceae” (Anacardiaceae and Burseraceae)
A comprehensive sampling of the pantropical sister pair Anacardiaceae and Burseraceae is used to assess the relative importance of continental vicariance, long-distance dispersal and niche-conservatism in generating its distinctive pattern of diversity over time. Expand
Species Relationships in Krameria (Krameriaceae) Based on ITS Sequences and Morphology: Implications for Character Utility and Biogeography
The phylogeny does not provide an unequivocal resolution as to the hemisphere in which Krameria arose, but it does indicate an initial split leading to the ancestors of the two clades, each of which subsequently produced radiations in North and South America. Expand
Origin and evolution of endemic Galápagos Varronia species (Cordiaceae).
Fossil-based divergence time estimates indicate endemic species diverged from American continental species as early as 4.5 Myr ago and radiated 1.12 Myr, which coincides with ages of exposed and subsided Galápagos islands. Expand
The biogeography of Hoffmannseggia (Leguminosae, Caesalpinioideae, Caesalpinieae): a tale of many travels
Aim  The flowering plant genus Hoffmannseggia consists of 21 species distributed amphitropically between the arid regions of the south-western United States and adjacent Mexico, and west-centralExpand
Evolution of the pili nut genus (Canarium L., Burseraceae) and its cultivated species
  • A. Weeks
  • Biology
  • Genetic Resources and Crop Evolution
  • 1 September 2009
Results indicate that Canarium comprises at least two distantly related evolutionary lineages within its tribe, desirable fruit characteristics of cultivated and wild-harvested edible species have evolved multiple times, and autopolyploidization rather than allopolyploidsization may have been associated with speciation in Canarium sensu stricto. Expand
Molecular phylogenetics and molecular clock dating of Sapindales based on plastid rbcL, atpB and trnL-trnF DNA sequences
B Biebersteiniaceae and Nitrariaceae have the longest stem lineages observed in Sapindales, possibly indicating that extinction may have had a greater role in shaping their extant diversity than elsewhere within the order. Expand