L. H. Rieseberg

Admixture with cultivated sunflower likely facilitated establishment and spread of wild sunflower (H. annuus) in Argentina

The paper investigates the invasion history of wild sunflower in Argentina, finding that admixture with cultivated sunflower and genomic selection contributed to its establishment and spread.

Biotic interactions promote local adaptation to soil in plants

This study shows biotic interactions enhance local adaptation to soil in Brassica rapa by promoting antagonistic pleiotropy through evolutionary history involving herbivory and pollination.

Reticulate evolution and rapid development of reproductive barriers upon secondary contact pose challenges for species delineation in a forest fungus

This study investigates reproductive barriers in Trichaptum abietinum using population genomics and in vitro crosses, finding pre-mating barriers correlated with genomic divergence and hybrid fitness linked to increasing divergence.

Repeatability of adaptation in sunflowers: genomic regions harbouring inversions also drive adaptation in species lacking an inversion

The paper investigates the repeatability of adaptation in sunflowers, finding that genomic regions with inversions contribute to adaptation even in species without such inversions.

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 western redcedar genome reveals low genetic diversity in a self-compatible conifer

The paper assembles the western redcedar genome and finds it has low genetic diversity, suggesting mechanisms like associative overdominance maintain genetic variation despite selfing.

Large haploblocks underlie rapid adaptation in an invasive weed

This study identifies large haploblocks as key drivers of rapid local adaptation in Ambrosia artemisiifolia across different climates.

QTL analysis reveals an oligogenic architecture of a rapidly adapting trait during the European invasion of common ragweed

This study identifies QTLs underlying flowering time adaptation in common ragweed during its European invasion, revealing a concentrated genetic architecture with suppressed recombination in specific genotypes.

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.

Global mismatches between crop distributions and climate suitability

The paper shows that current crop distributions do not align with their climate suitability, highlighting the need to consider non-climatic factors in agricultural strategies.

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.

Aberrant regulation of RNA splicing in sunflower hybrids may underlie intrinsic incompatibilities

The paper identifies novel splice forms in sunflower hybrids that may contribute to reproductive incompatibilities through co-evolution of spliceosomal components.

Contrasting selection at multiple life stages maintains divergent adaptation between sunflower ecotypes

The paper examines how selection at different life stages maintains divergent adaptation between two sunflower ecotypes using demographic models and genome-wide data.

Ancestral reconstruction of sunflower karyotypes reveals non-random chromosomal evolution

The paper reconstructs ancestral sunflower karyotypes and finds a high rate of chromosomal rearrangement with non-random translocations contributing to hybrid sterility.

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.

Patterns, predictors, and consequences of dominance in hybrids

This study examines hybrid phenotype patterns, finding hybrids often resemble one parent more than the other and show trait mismatches, with mismatch having a stronger fitness impact than parent bias.

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.