ArticleHeredity2013
Dancing together and separate again: gymnosperms exhibit frequent changes of fundamental 5S and 35S rRNA gene (rDNA) organisation.
Article in Heredity, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Does time matter? Intraspecific diversity of ribosomal RNA genes in lineages of the allopolyploid model grass Brachypodium hybridum with different evolutionary ages.BMC plant biology · 2024Article
- Evolving Together: Cassandra Retrotransposons Gradually Mirror Promoter Mutations of the 5S rRNA Genes.Molecular biology and evolution · 2024Article
- Intragenomic rDNA variation - the product of concerted evolution, mutation, or something in between?Heredity · 2023Review
- Article
- Release 4.0 of the Plant rDNA Database: A Database on Plant Ribosomal DNA Loci Number, Their Position, and Organization: An Information Source for Comparative Cytogenetics.Methods in molecular biology (Clifton, N.J.) · 2023Article
- Analysis of 5S rDNA Genomic Organization Through the RepeatExplorer2 Pipeline: A Simplified Protocol.Methods in molecular biology (Clifton, N.J.) · 2023Article
- Complex Scenarios of Reticulation, Polyploidization, and Species Diversity within Annual Pansies of Subsect.Plants (Basel, Switzerland) · 2022Article
- The Evolution of Cytogenetic Traits inFrontiers in plant science · 2022Article
- Subgenome Discrimination inCells · 2021Article
- Variation in Ribosomal DNA in the GenusPlants (Basel, Switzerland) · 2021Article
- Personal Perspectives on Plant Ribosomal RNA Genes Research: From Precursor-rRNA to Molecular Evolution.Frontiers in plant science · 2021Review
- Comparative Repeat Profiling of Two Closely Related Conifers (Frontiers in genetics · 2021Article
- Different from tracheophytes, liverworts commonly have mixed 35S and 5S arrays.Annals of botany · 2020Article
- Ribosomal DNA and the Nucleolus as Keystones of Nuclear Architecture, Organization, and Function.Trends in genetics : TIG · 2019Review
- Remarkable variation of ribosomal DNA organization and copy number in gnetophytes, a distinct lineage of gymnosperms.Annals of botany · 2019Article
- Comparative Dissection of Three Giant Genomes:International journal of molecular sciences · 2019Article
- Retroelements and DNA Methylation Could Contribute to Diversity of 5S rDNA in Agave L.Journal of molecular evolution · 2018Article
- Rapid and Efficient FISH using Pre-Labeled Oligomer Probes.Scientific reports · 2018Article
- Genetic and epigenetic variation in 5S ribosomal RNA genes reveals genome dynamics in Arabidopsis thaliana.Nucleic acids research · 2018Article
- Evolutionary trends in animal ribosomal DNA loci: introduction to a new online database.Chromosoma · 2018Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In higher eukaryotes, the 5S rRNA genes occur in tandem units and are arranged either separately (S-type arrangement) or linked to other repeated genes, in most cases to rDNA locus encoding 18S-5.8S-26S genes (L-type arrangement). Here we used Southern blot hybridisation, PCR and sequencing approaches to analyse genomic organisation of rRNA genes in all large gymnosperm groups, including Coniferales, Ginkgoales, Gnetales and Cycadales. The data are provided for 27 species (21 genera). The 5S units linked to the 35S rDNA units occur in some but not all Gnetales, Coniferales and in Ginkgo (∼30% of the species analysed), while the remaining exhibit separate organisation. The linked 5S rRNA genes may occur as single-copy insertions or as short tandems embedded in the 26S-18S rDNA intergenic spacer (IGS). The 5S transcript may be encoded by the same (Ginkgo, Ephedra) or opposite (Podocarpus) DNA strand as the 18S-5.8S-26S genes. In addition, pseudogenised 5S copies were also found in some IGS types. Both L- and S-type units have been largely homogenised across the genomes. Phylogenetic relationships based on the comparison of 5S coding sequences suggest that the 5S genes independently inserted IGS at least three times in the course of gymnosperm evolution. Frequent transpositions and rearrangements of basic units indicate relatively relaxed selection pressures imposed on genomic organisation of 5S genes in plants.
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