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Thrice Out of Africa: Ancient and Recent Expansions of the Honey Bee, Apis mellifera
TLDR
The results indicate that A. mellifera originated in Africa and expanded into Eurasia at least twice, resulting in populations in eastern and western Europe that are geographically close but genetically distant. Expand
Sympatric speciation in phytophagous insects: moving beyond controversy?
TLDR
The evidence for sympatric speciation via host shifting for phytophagous insects is reviewed and a set of testable predictions for distinguishing geographic mode (allopatric versus sympatrics) of divergence are proposed. Expand
Allopatric genetic origins for sympatric host-plant shifts and race formation in Rhagoletis
TLDR
Evidence is reported suggesting a surprising source of genetic variation contributing to sympatric host shifts forephritid fruit flies belonging to the Rhagoletis pomonella sibling species complex, which originated in a different time and place than the proximate ecological host shifts triggering sympatrics divergence. Expand
Inferring Evolutionary Trees from Gene Frequency Data Under the Principle of Maximum Parsimony
Most workers attempting to infer evolutionary trees from polymorphic data using established parsimony procedures either have ignored frequency information entirely or have tolerated "optimal"Expand
Insights into social insects from the genome of the honeybee Apis mellifera
TLDR
The genome sequence of the honeybee Apis mellifera is reported, suggesting a novel African origin for the species A. melliferA and insights into whether Africanized bees spread throughout the New World via hybridization or displacement. Expand
RADIATION AND DIVERGENCE IN THE RHAGOLETIS POMONELLA SPECIES GROUP: INFERENCES FROM ALLOZYMES
  • S. Berlocher
  • Biology, Medicine
  • Evolution; international journal of organic…
  • 1 April 2000
TLDR
The first extensive analysis of genetic divergence in the Rhagoletis pomonella group, including all known taxa/populations except the allopatric Mexican population of R. pom onella, is presented, and the phylogenetic placement of the flowering dogwood fly differed depending on whether a molecular clock was assumed (UPGMA of Nei distance) or not assumed (frequency parsimony) for tree building. Expand
Genetic differences between host races of Rhagoletis pomonella
TLDR
Significant differences in allele frequencies between fly populations reared from sympatric apple and hawthorn trees at a field site in Urbana, Illinois, in the United States are reported. Expand
Fruit odor discrimination and sympatric host race formation in Rhagoletis
TLDR
It is shown that historically derived apple- and ancestral hawthorn-infesting host races of the fly use fruit odor as a key olfactory cue to help distinguish between their respective plants. Expand
Sympatric Host-Race Formation and Speciation in Rhagoletis (Diptera: Tephritidae): A Tale of Two Species for Charles D.
TLDR
If the plethora of host specialists is due, at least in part, to numerous plant niches that have imposed divergent selection pressures on phytophagous insects, then the relationship between host-plant specialization and reproductive isolation should be considered. Expand
Developmental trajectories of gene expression reveal candidates for diapause termination: a key life-history transition in the apple maggot fly Rhagoletis pomonella
TLDR
The goal was to pinpoint the timing of the transition from diapause to post-diapause development and to identify candidate genes and pathways for regulation of diAPause termination, and to discuss the results with respect to generalities in insect diappedause physiology. Expand
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