ArticleMolecular biology and evolution2023
Re-evaluating Homoploid Reticulate Evolution in Helianthus Sunflowers.
Article in Molecular biology and evolution, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- The dynamics of introgression and parallel adaptation across North AmericanProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Genetics and genomics of hybridization.Nature reviews. Genetics · 2026Review
- Phylogenomic blind spots: the limits of UCE and BUSCO loci in the presence of gene flow.Molecular biology and evolution · 2026Article
- Hybridization and Polyploidy Shaped the Evolutionary History of a Complex of Cryptic Species in European Woodrushes (Luzula sect. Luzula).Systematic biology · 2026Article
- Documenting homoploid hybrid speciation.Molecular ecology · 2025Review
- Historical introgression as a driver of diversification of diploid Picris (Compositae) in the Mediterranean Basin.The Plant journal : for cell and molecular biology · 2025Article
- A trans-species cytoplasmic polymorphism is associated with seed shape and aridity across multiple species of sunflowers.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Misspecification Strikes: ASTRAL can Mislead in the Presence of Hybridization, even for Nonanomalous Scenarios.Molecular biology and evolution · 2025Article
- Shared Selection and Genetic Architecture Drive Strikingly Repeatable Evolution in Long-Term Experimental Hybrid Populations.Molecular biology and evolution · 2025Article
- Haplotype-resolved chromosome-level genome of hexaploid Jerusalem artichoke provides insights into its origin, evolution, and inulin metabolism.Plant communications · 2024Article
- Development and characterization of a new sunflower source of resistance to race G of Orobanche cumana Wallr. derived from Helianthus anomalus.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Karyotypic stasis and swarming influenced the evolution of viral tolerance in a species-rich bat radiation.Cell genomics · 2024Article
- Genomics of plant speciation.Plant communications · 2023Review
- Genomic evidence reveals high genetic diversity in a narrowly distributed species and natural hybridization risk with a widespread species in the genus Geodorum.BMC plant biology · 2023Article
- Mitogenomic Research of Silverleaf Sunflower (Current issues in molecular biology · 2023Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sunflowers of the genus Helianthus are models for hybridization research and contain three of the best-studied examples of homoploid hybrid speciation. To understand a broader picture of hybridization within the annual sunflowers, we used whole-genome resequencing to conduct a phylogenomic analysis and test for gene flow between lineages. We find that all annual sunflower species tested have evidence of admixture, suggesting hybridization was common during the radiation of the genus. Support for the major species tree decreases with increasing recombination rate, consistent with hybridization and introgression contributing to discordant topologies. Admixture graphs found hybridization to be associated with the origins of the three putative hybrid species (Helianthus anomalus, Helianthus deserticola, and Helianthus paradoxus). However, the hybridization events are more ancient than suggested by previous work. Furthermore, H. anomalus and H. deserticola appear to have arisen from a single hybridization event involving an unexpected donor, rather than through multiple independent events as previously proposed. This means our results are consistent with, but not definitive proof of, two ancient independent homoploid hybrid speciation events in the genus. Using a broader data set that covers the whole Helianthus genus, including perennial species, we find that signals of introgression span the genus and beyond, suggesting highly divergent introgression and/or the sorting of ancient haplotypes. Thus, Helianthus can be viewed as a syngameon in which largely reproductively isolated species are linked together by occasional or frequent gene flow.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.