A. D. Twyford

Rampant Reticulation in a Rapid Radiation of Tropical Trees - Insights from Inga (Fabaceae)

This study investigates hybridization in the genus Inga, finding widespread introgression and its potential role in adaptation through chemical defense loci during the radiation of Amazonian trees.

Genomic clustering by geography not species in taxonomically complex British and Irish eyebrights (Euphrasia)

The paper uses genomic data to show that geographic clustering, not species, defines genetic structure in British and Irish eyebrights, indicating permeable species boundaries and extensive gene flow.

Measuring the invisible - The sequences causal of genome size differences in eyebrights (Euphrasia) revealed by k-mers

This study identifies sequences responsible for genome size variation in eyebrights using k-mer analysis, revealing contributions from both high- and low-copy number sequences without a reference genome.

Natural interploidy hybridization among the key taxa involved in the origin of horticultural chrysanthemums

The paper identifies natural interploidy hybridization among wild chrysanthemum species involved in the origin of cultivated chrysanthemums, revealing patterns influenced by reproductive isolation and human activity.

The nature of intraspecific genome size variation in taxonomically complex eyebrights

This study examines genome size variation in eyebrights, finding significant intraspecific variation and contrasting patterns between diploid and tetraploid species.

Performance of generalist hemiparasitic Euphrasia across a phylogenetically diverse host spectrum

This study examines how host species and phylogenetic relationships affect the performance of generalist hemiparasitic plants, finding that performance varies mainly with host traits and some hosts lead to poorer performance over time.

Population genomic and historical analysis reveals a global invasion by bridgehead processes in Mimulus guttatus

The paper traces the global invasion of Mimulus guttatus, showing it originated from North America to Europe and the Southwest Pacific via bridgehead populations and admixture.

Maintenance of species differences in closely related tetraploid parasitic Euphrasia (Orobanchaceae) on an isolated island

The paper investigates genetic divergence in tetraploid Euphrasia species on Fair Isle, showing allopolyploid origins and sub-genome divergence with species-specific genetic structure.

Life history evolution and phenotypic plasticity in parasitic eyebrights (Euphrasia, Orobanchaceae)

This study examines life history trait variation in Euphrasia species, finding trade-offs between growth and reproduction and significant phenotypic plasticity in response to host quality.

A floristic survey of Fair Isle

The paper presents the first comprehensive floristic survey of Fair Isle, documenting 317 species and highlighting conservation concerns.

DNA barcoding British Euphrasia reveals deeply divergent polyploids but lack of species-level resolution

This study uses DNA barcoding to analyze evolutionary patterns in British Euphrasia, finding that polyploidy drives genetic divergence but standard barcoding loci lack species-level resolution.