G. L. Owens

Rapid turnover and evolution of sex-determining regions among Sebastes rockfishes

The paper identifies diverse sex-determination mechanisms in Sebastes rockfish species using genomic data.

Re-evaluating homoploid reticulate evolution in the annual sunflowers.

This study re-evaluates homoploid reticulate evolution in annual sunflowers using whole genome resequencing, finding widespread admixture and ancient hybridization events across the genus.

The rate of inversion fixation in plant genomes is highly variable.

The study examines inversion fixation rates in plant genomes, finding high variability and no strong correlation with sequence divergence or repeat content.

High homozygosity of inversions in sunflower species largely averts accumulation of deleterious mutations

This study examines recombination, transposable elements, and deleterious mutations in sunflower species, finding that inversion homozygosity reduces mutation accumulation.

Genetic basis and dual adaptive role of floral pigmentation in sunflowers

The paper identifies a single MYB transcription factor, HaMYB111, as the genetic basis for UV pigmentation diversity in sunflowers and shows its dual role in pollinator attraction and abiotic stress response.

Parallel shifts of visual sensitivity and body colouration in replicate populations of extremophile fish.

The paper examines visual sensitivity and body pigmentation in sulphidic populations of Poecilia mexicana, finding parallel shifts towards greater medium wavelength sensitivity and reflectance, independent of light environment differences.

An unexpected donor in the adaptive introgression candidate Helianthus annuus subsp. texanus.

The paper investigates introgression in Helianthus annuus subsp. texanus using genome and phenotypic data, finding introgression from H. argophyllus rather than H. debilis as previously hypothesized.

Multiple chromosomal inversions contribute to adaptive divergence of a dune sunflower ecotype

The paper identifies seven chromosomal inversions in a dune sunflower ecotype that contribute to adaptive divergence and incipient speciation by associating with environmental variables and islands of differentiation.

Massive haplotypes underlie ecotypic differentiation in sunflowers

The paper identifies large haplotype blocks associated with ecotypic differentiation in sunflowers, showing how structural variation maintains adaptive alleles despite hybridization.

Adaptive introgression during environmental change can weaken reproductive isolation

The paper shows that adaptive introgression during environmental change can weaken reproductive isolation, leading to the decay of species boundaries.