ArticleBMC evolutionary biology2015
High evolutionary turnover of satellite families in Caenorhabditis.
Article in BMC evolutionary biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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23 citing papers in PubMed, 25 citations in OpenAlex.
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- Three recent sex chromosome-to-autosome fusions in a Drosophila virilis strain with high satellite DNA content.Genetics · 2023Article
- Unique Features of Satellite DNA Transcription in Different Tissues ofInternational journal of molecular sciences · 2023Article
- Satellitome analyses in nematodes illuminate complex species history and show conserved features in satellite DNAs.BMC biology · 2022Article
- Nematode chromosomes.Genetics · 2022Review
- DNA Satellites Are Transcribed as Part of the Non-Coding Genome in Eukaryotes and Bacteria.Genes · 2021Article
- Tandem Repeats inInternational journal of molecular sciences · 2021Article
- Sex chromosome evolution in frogs-helpful insights from chromosome painting in the genus Engystomops.Heredity · 2021Article
- Unique Features of Tandem Repeats in Bacteria.Journal of bacteriology · 2020Article
- The epigenetic regulation of centromeres and telomeres in plants and animals.Comparative cytogenetics · 2020Review
- Satellites in the prokaryote world.BMC evolutionary biology · 2019Article
- Intraspecific Variation in Microsatellite Mutation Profiles in Daphnia magna.Molecular biology and evolution · 2019Article
- A Case for Using Genomics and a Bioinformatics Pipeline to Develop Sensitive and Species-Specific PCR-Based Diagnostics for Soil-Transmitted Helminths.Frontiers in genetics · 2019Review
- Article
- Variable Rates of Simple Satellite Gains across the Drosophila Phylogeny.Molecular biology and evolution · 2018Article
- Repressive Chromatin inGenetics · 2018Review
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe high density of tandem repeat sequences (satellites) in nematode genomes and the availability of genome sequences from several species in the group offer a unique opportunity to better understand the evolutionary dynamics and the functional role of these sequences. We take advantage of the previously developed SATFIND program to study the satellites in four Caenorhabditis species and investigate these questions.
methodsThe identification and comparison of satellites is carried out in three steps. First we find all the satellites present in each species with the SATFIND program. Each satellite is defined by its length, number of repeats, and repeat sequence. Only satellites with at least ten repeats are considered. In the second step we build satellite families with a newly developed alignment program. Satellite families are defined by a consensus sequence and the number of satellites in the family. Finally we compare the consensus sequence of satellite families in different species.
resultsWe give a catalog of individual satellites in each species. We have also identified satellite families with a related sequence and compare them in different species. We analyze the turnover of satellites: they increased in size through duplications of fragments of 100-300 bases. It appears that in many cases they have undergone an explosive expansion. In C. elegans we have identified a subset of large satellites that have strong affinity for the centromere protein CENP-A. We have also compared our results with those obtained from other species, including one nematode and three mammals.
conclusionsMost satellite families found in Caenorhabditis are species-specific; in particular those with long repeats. A subset of these satellites may facilitate the formation of kinetochores in mitosis. Other satellite families in C. elegans are either related to Helitron transposons or to meiotic pairing centers.
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