ArticlePLoS genetics2019
Towards the new normal: Transcriptomic convergence and genomic legacy of the two subgenomes of an allopolyploid weed (Capsella bursa-pastoris).
Article in PLoS genetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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22 citing papers in PubMed, 44 citations in OpenAlex.
- Hybridization and gene expression: Beyond differentially expressed genes.Molecular ecology · 2025Review
- Diploidization in a wild rice allopolyploid is both episodic and gradual.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- The Genetic Consequences of Range Expansion and Its Influence on Diploidization in Polyploids.The American naturalist · 2025Article
- Dominance between self-incompatibility alleles determines the mating system ofEvolution letters · 2024Article
- The genetic consequences of range expansion and its influence on diploidization in polyploids.bioRxiv : the preprint server for biology · 2024Article
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- Does one subgenome become dominant in the formation and evolution of a polyploid?Annals of botany · 2023Article
- How broad is the selfing syndrome? Insights from convergent evolution of gene expression across species and tissues in the Capsella genus.The New phytologist · 2022Article
- The landscape of transcriptional and translational changes over 22 years of bacterial adaptation.eLife · 2022Article
- Cross-kingdom transcriptomic trends in the evolution of hybrid gene expression.Journal of evolutionary biology · 2022Article
- The relative role of plasticity and demographic history inAoB PLANTS · 2022Article
- Deleterious Mutations Accumulate Faster in Allopolyploid Than Diploid Cotton (Gossypium) and Unequally between Subgenomes.Molecular biology and evolution · 2022Article
- Subgenome dominance and its evolutionary implications in crop domestication and breeding.Horticulture research · 2022Article
- Gradual evolution of allopolyploidy in Arabidopsis suecica.Nature ecology & evolution · 2021Article
- Pleistocene dynamics of the Eurasian steppe as a driving force of evolution: Phylogenetic history of the genusEcology and evolution · 2021Article
- Gene and Transposable Element Expression Evolution Following Recent and Past Polyploidy Events inFrontiers in genetics · 2021Article
- Parental legacy and regulatory novelty inNAR genomics and bioinformatics · 2020Article
- Shift in ecological strategy helps marginal populations of shepherd's purse (Proceedings. Biological sciences · 2020Article
- Competition of Parental Genomes in Plant Hybrids.Frontiers in plant science · 2020Review
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Authors and funding
7 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Allopolyploidy has played a major role in plant evolution but its impact on genome diversity and expression patterns remains to be understood. Some studies found important genomic and transcriptomic changes in allopolyploids, whereas others detected a strong parental legacy and more subtle changes. The allotetraploid C. bursa-pastoris originated around 100,000 years ago and one could expect the genetic polymorphism of the two subgenomes to follow similar trajectories and their transcriptomes to start functioning together. To test this hypothesis, we sequenced the genomes and the transcriptomes (three tissues) of allotetraploid C. bursa-pastoris and its parental species, the outcrossing C. grandiflora and the self-fertilizing C. orientalis. Comparison of the divergence in expression between subgenomes, on the one hand, and divergence in expression between the parental species, on the other hand, indicated a strong parental legacy with a majority of genes exhibiting a conserved pattern and cis-regulation. However, a large proportion of the genes that were differentially expressed between the two subgenomes, were also under trans-regulation reflecting the establishment of a new regulatory pattern. Parental dominance varied among tissues: expression in flowers was closer to that of C. orientalis and expression in root and leaf to that of C. grandiflora. Since deleterious mutations accumulated preferentially on the C. orientalis subgenome, the bias in expression towards C. orientalis observed in flowers indicates that expression changes could be adaptive and related to the selfing syndrome, while biases in the roots and leaves towards the C. grandiflora subgenome may be reflective of the differential genetic load.
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