ArticleGenome biology and evolution2017
Insertion Polymorphisms of Mobile Genetic Elements in Sexual and Asexual Populations of Daphnia pulex.
Article in Genome biology and evolution, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Relaxed Purifying Selection is Associated with an Accumulation of Transposable Elements in Flies.Molecular biology and evolution · 2025Article
- Trans-Specific Polymorphisms Between Cryptic Daphnia Species Affect Fitness and Behavior.Molecular ecology · 2025Article
- Global gene expression profiling under nitrogen stress identifies key genes involved in nitrogen stress adaptation in maize (Zea mays L.).Scientific reports · 2022Article
- Engines of change: Transposable element mutation rates are high and variable within Daphnia magna.PLoS genetics · 2021Article
- Genomic Features of Parthenogenetic Animals.The Journal of heredity · 2021Article
- Article
- Asexual reproduction reduces transposable element load in experimental yeast populations.eLife · 2019Article
- Genetic control of male production inProceedings of the National Academy of Sciences of the United States of America · 2019Article
- A Maximum-Likelihood Approach to Estimating the Insertion Frequencies of Transposable Elements from Population Sequencing Data.Molecular biology and evolution · 2018Article
- A New Reference Genome Assembly for the MicrocrustaceanG3 (Bethesda, Md.) · 2017Article
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4 authors.
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Abstract
Transposable elements (TEs) constitute a substantial portion of many eukaryotic genomes, and can in principle contribute to evolutionary innovation as well as genomic deterioration. Daphnia pulex serves as a useful model for studying TE dynamics as a potential cause and/or consequence of asexuality. We analyzed insertion polymorphisms of TEs in 20 sexual and 20 asexual isolates of D. pulex across North American from their available whole-genome sequencing data. Our results show that the total fraction of the derived sequences of TEs is not substantially different between asexual and sexual D. pulex isolates. However, in general, sexual clones contain fewer fixed TE insertions but more total insertion polymorphisms than asexual clones, supporting the hypothesis that sexual reproduction facilitates the spread and elimination of TEs. We identified nine asexual-specific fixed TE insertions, eight long terminal repeat retrotransposons, and one DNA transposon. By comparison, no sexual-specific fixed TE insertions were observed in our analysis. Furthermore, except one TE insertion located on a contig from chromosome 7, the other eight asexual-specific insertion sites are located on contigs from chromosome 9 that is known to be associated with obligate asexuality in D. pulex. We found that all nine asexual-specific fixed TE insertions can also be detected in some Daphnia pulicaria isolates, indicating that a substantial number of TE insertions in asexual D. pulex have been directly inherited from D. pulicaria during the origin of obligate asexuals.
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