ArticleProceedings of the National Academy of Sciences of the United States of America2023
The genomics of linkage drag in inbred lines of sunflower.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed, 53 citations in OpenAlex.
- Advances in genomics-driven genetic decoding and genomic design breeding in tomato.Horticulture research · 2026Article
- The stability of fatty acid composition in sunflower oil is dependent on environment and affected by structural variation.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Wild genes to the rescue: high-throughput genomics reveals the wild source of broomrape resistance in sunflower.Journal of experimental botany · 2026Article
- Mapping recombination cold spots in wheat via meiotic recombination in a large biparental population.G3 (Bethesda, Md.) · 2026Article
- Mapping structural variants in Populus tomentosa reveals adaptive signatures and improves prediction of wood properties.Nature communications · 2026Article
- Recombination suppression in plant adaptation and speciation.The New phytologist · 2026Review
- Crop wild relatives of legumes: evolutionary resources for climate-responsive pre-breeding.Frontiers in plant science · 2026Review
- MAGIC populations: a next-generation framework for dissecting complex quantitative traits and accelerating molecular breeding in crops.Frontiers in plant science · 2026Review
- Pangenomes as a framework for adaptive radiation, speciation, and adaptation.American journal of botany · 2025Article
- Gene duplication dynamics and regulatory evolution shape the diversification of Asteraceae.bioRxiv : the preprint server for biology · 2025Article
- RepeatOBserver: Tandem Repeat Visualisation and Putative Centromere Detection.Molecular ecology resources · 2025Article
- Review
- Understanding genetic architecture overcomes tradeoffs between seed quality and insect resistance.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Combining Linkage and Association Mapping Approaches to Study the Genetic Architecture of Verticillium Wilt Resistance in Sunflower.Plants (Basel, Switzerland) · 2025Article
- Recent Advances in Molecular Tools and Pre-Breeding Activities in White Lupin (Plants (Basel, Switzerland) · 2025Review
- Inversions contribute disproportionately to parallel genomic divergence in dune sunflowers.Nature ecology & evolution · 2025Article
- Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars.Scientific data · 2025Article
- Shared Selection and Genetic Architecture Drive Strikingly Repeatable Evolution in Long-Term Experimental Hybrid Populations.Molecular biology and evolution · 2025Article
- Genomic Insights into Disease Resistance in Sunflower (Plants (Basel, Switzerland) · 2024Article
- Landscape genomics reveals genetic signals of environmental adaptation of African wild eggplants.Ecology and evolution · 2024Article
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Authors and funding
30 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Crop wild relatives represent valuable sources of alleles for crop improvement, including adaptation to climate change and emerging diseases. However, introgressions from wild relatives might have deleterious effects on desirable traits, including yield, due to linkage drag. Here, we analyzed the genomic and phenotypic impacts of wild introgressions in inbred lines of cultivated sunflower to estimate the impacts of linkage drag. First, we generated reference sequences for seven cultivated and one wild sunflower genotype, as well as improved assemblies for two additional cultivars. Next, relying on previously generated sequences from wild donor species, we identified introgressions in the cultivated reference sequences, as well as the sequence and structural variants they contain. We then used a ridge-regression best linear unbiased prediction (BLUP) model to test the effects of the introgressions on phenotypic traits in the cultivated sunflower association mapping population. We found that introgression has introduced substantial sequence and structural variation into the cultivated sunflower gene pool, including >3,000 new genes. While introgressions reduced genetic load at protein-coding sequences, they mostly had negative impacts on yield and quality traits. Introgressions found at high frequency in the cultivated gene pool had larger effects than low-frequency introgressions, suggesting that the former likely were targeted by artificial selection. Also, introgressions from more distantly related species were more likely to be maladaptive than those from the wild progenitor of cultivated sunflower. Thus, breeding efforts should focus, as far as possible, on closely related and fully compatible wild relatives.
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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 OpenQuestion graph.