ArticlePloS one2021
New evidence confirming the CD genomic constitutions of the tetraploid Avena species in the section Pachycarpa Baum.
Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
8 citing papers in PubMed, 15 citations in OpenAlex.
- Review
- Participation of Wild Species GenusPlants (Basel, Switzerland) · 2025Article
- Reference genome assemblies reveal the origin and evolution of allohexaploid oat.Nature genetics · 2022Article
- New Insights into the Genomic Structure ofPlants (Basel, Switzerland) · 2022Article
- Oat chromosome and genome evolution defined by widespread terminal intergenomic translocations in polyploids.Frontiers in plant science · 2022Article
- Cytogenetic events in the endosperm of amphiploid Avena magna × A. longiglumis.Journal of plant research · 2021Article
- A universal karyotypic system for hexaploid and diploid Avena species brings oat cytogenetics into the genomics era.BMC plant biology · 2021Article
- Cytogenetic evidence supports Avena insularis being closely related to hexaploid oats.PloS one · 2021Article
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The tetraploid Avena species in the section Pachycarpa Baum, including A. insularis, A. maroccana, and A. murphyi, are thought to be involved in the evolution of hexaploid oats; however, their genome designations are still being debated. Repetitive DNA sequences play an important role in genome structuring and evolution, so understanding the chromosomal organization and distribution of these sequences in Avena species could provide valuable information concerning genome evolution in this genus. In this study, the chromosomal organizations and distributions of six repetitive DNA sequences (including three SSR motifs (TTC, AAC, CAG), one 5S rRNA gene fragment, and two oat A and C genome specific repeats) were investigated using non-denaturing fluorescence in situ hybridization (ND-FISH) in the three tetraploid species mentioned above and in two hexaploid oat species. Preferential distribution of the SSRs in centromeric regions was seen in the A and D genomes, whereas few signals were detected in the C genomes. Some intergenomic translocations were observed in the tetraploids; such translocations were also detected between the C and D genomes in the hexaploids. These results provide robust evidence for the presence of the D genome in all three tetraploids, strongly suggesting that the genomic constitution of these species is DC and not AC, as had been thought previously.
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