ArticleBMC plant biology2009
On the road to diploidization? Homoeolog loss in independently formed populations of the allopolyploid Tragopogon miscellus (Asteraceae).
Article in BMC plant biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed, 115 citations in OpenAlex.
- Comparative analysis of plastid genomes from allopolyploid Tragopogon miscellus and its diploid parents.Plant biology (Stuttgart, Germany) · 2025Article
- Towards a Research Programme Aiming at Causes and Consequences of Reticulate Evolution.Biology · 2025Review
- Development of a homeolog-specific gene editing system in an evolutionary model for the study of polyploidy in nature.Frontiers in genome editing · 2025Article
- Transcriptomics and Metabolomics Reveal Biosynthetic Pathways and Regulatory Mechanisms of Phenylpropanes in Different Ploidy ofPlants (Basel, Switzerland) · 2024Article
- Review
- Article
- Genomic and Meiotic Changes Accompanying Polyploidization.Plants (Basel, Switzerland) · 2022Review
- Review
- Imprints of independent allopolyploid formations on patterns of gene expression in two sibling yarrow species (Achillea, Asteraceae).BMC genomics · 2021Article
- Transcriptome Dynamics of the Inflorescence in Reciprocally Formed AllopolyploidFrontiers in genetics · 2020Article
- Gene Expression Changes During the Allo-/Deallopolyploidization Process ofFrontiers in genetics · 2019Article
- Decomposing Additive Genetic Variance Revealed Novel Insights into Trait Evolution in Synthetic Hexaploid Wheat.Frontiers in genetics · 2018Article
- Analyzing homoeolog expression provides insights into the rediploidization event in gynogenetic hybrids of Carassius auratus red var. × Cyprinus carpio.Scientific reports · 2017Article
- Natural variation in stress response gene activity in the allopolyploid Arabidopsis suecica.BMC genomics · 2017Article
- Determination of dosage compensation and comparison of gene expression in a triploid hybrid fish.BMC genomics · 2017Article
- The origin of exon 3 skipping of paternal GLOBOSA pre-mRNA in some Nicotiana tabacum lines correlates with a point mutation of the very last nucleotide of the exon.Molecular genetics and genomics : MGG · 2016Article
- Cytomolecular Analysis of Ribosomal DNA Evolution in a Natural AllotetraploidFrontiers in plant science · 2016Article
- The impacts of polyploidy, geographic and ecological isolations on the diversification of Panax (Araliaceae).BMC plant biology · 2015Article
- Speciation by genome duplication: Repeated origins and genomic composition of the recently formed allopolyploid species Mimulus peregrinus.Evolution; international journal of organic evolution · 2015Article
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Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPolyploidy (whole-genome duplication) is an important speciation mechanism, particularly in plants. Gene loss, silencing, and the formation of novel gene complexes are some of the consequences that the new polyploid genome may experience. Despite the recurrent nature of polyploidy, little is known about the genomic outcome of independent polyploidization events. Here, we analyze the fate of genes duplicated by polyploidy (homoeologs) in multiple individuals from ten natural populations of Tragopogon miscellus (Asteraceae), all of which formed independently from T. dubius and T. pratensis less than 80 years ago.
resultsOf the 13 loci analyzed in 84 T. miscellus individuals, 11 showed loss of at least one parental homoeolog in the young allopolyploids. Two loci were retained in duplicate for all polyploid individuals included in this study. Nearly half (48%) of the individuals examined lost a homoeolog of at least one locus, with several individuals showing loss at more than one locus. Patterns of loss were stochastic among individuals from the independently formed populations, except that the T. dubius copy was lost twice as often as T. pratensis.
conclusionThis study represents the most extensive survey of the fate of genes duplicated by allopolyploidy in individuals from natural populations. Our results indicate that the road to genome downsizing and ultimate genetic diploidization may occur quickly through homoeolog loss, but with some genes consistently maintained as duplicates. Other genes consistently show evidence of homoeolog loss, suggesting repetitive aspects to polyploid genome evolution.
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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.