ArticleBMC plant biology2020
Comparative analyses of DNA repeats and identification of a novel Fesreba centromeric element in fescues and ryegrasses.
Article in BMC plant biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 19 citations in OpenAlex.
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- Chromosome-level haplotype-resolved genome assembly provides insights into the highly heterozygous genome of Italian ryegrass (Lolium multiflorum Lam.).The plant genome · 2025Article
- First insight into the genomes of the Pulmonaria officinalis group (Boraginaceae) provided by repeatome analysis and comparative karyotyping.BMC plant biology · 2024Article
- Species of the SectionsInternational journal of molecular sciences · 2024Review
- Integration of Repeatomic and Cytogenetic Data on Satellite DNA for the Genome Analysis in the GenusPlants (Basel, Switzerland) · 2022Article
- Article
- Draft Sequencing Crested Wheatgrass Chromosomes Identified Evolutionary Structural Changes and Genes and Facilitated the Development of SSR Markers.International journal of molecular sciences · 2022Article
- Advances in the Molecular Cytogenetics of Bananas, Family Musaceae.Plants (Basel, Switzerland) · 2022Review
- Evolutionary Dynamics of the Repeatome Explains Contrasting Differences in Genome Sizes and Hybrid and Polyploid Origins of Grass Loliinae Lineages.Frontiers in plant science · 2022Article
- Integration of Genomic and Cytogenetic Data on Tandem DNAs for Analyzing the Genome Diversity Within the GenusFrontiers in plant science · 2022Article
- On the Origin of Tetraploid Vernal Grasses (Genes · 2021Article
- The Role of Satellite DNAs in Genome Architecture and Sex Chromosome Evolution in Crambidae Moths.Frontiers in genetics · 2021Article
- The Evolutionary Dynamics of Repetitive DNA and Its Impact on the Genome Diversification in the GenusFrontiers in plant science · 2021Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCultivated grasses are an important source of food for domestic animals worldwide. Increased knowledge of their genomes can speed up the development of new cultivars with better quality and greater resistance to biotic and abiotic stresses. The most widely grown grasses are tetraploid ryegrass species (Lolium) and diploid and hexaploid fescue species (Festuca). In this work, we characterized repetitive DNA sequences and their contribution to genome size in five fescue and two ryegrass species as well as one fescue and two ryegrass cultivars.
resultsPartial genome sequences produced by Illumina sequencing technology were used for genome-wide comparative analyses with the RepeatExplorer pipeline. Retrotransposons were the most abundant repeat type in all seven grass species. The Athila element of the Ty3/gypsy family showed the most striking differences in copy number between fescues and ryegrasses. The sequence data enabled the assembly of the long terminal repeat (LTR) element Fesreba, which is highly enriched in centromeric and (peri)centromeric regions in all species. A combination of fluorescence in situ hybridization (FISH) with a probe specific to the Fesreba element and immunostaining with centromeric histone H3 (CENH3) antibody showed their co-localization and indicated a possible role of Fesreba in centromere function.
conclusionsComparative repeatome analyses in a set of fescues and ryegrasses provided new insights into their genome organization and divergence, including the assembly of the LTR element Fesreba. A new LTR element Fesreba was identified and found in abundance in centromeric regions of the fescues and ryegrasses. It may play a role in the function of their centromeres.
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