ArticleThe Plant cell2013
Copy number variation in transcriptionally active regions of sexual and apomictic Boechera demonstrates independently derived apomictic lineages.
Article in The Plant cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Asexuality Associated with Marked Genomic Expansion of Tandemly Repeated rRNA and Histone Genes.Molecular biology and evolution · 2021Article
- Gene Function Rather than Reproductive Mode Drives the Evolution of RNA Helicases in Sexual and Apomictic Boechera.Genome biology and evolution · 2020Article
- Differential activity of F-box genes and E3 ligases distinguishes sexual versus apomictic germline specification in Boechera.Journal of experimental botany · 2019Article
- TheFrontiers in plant science · 2019Review
- Apospory and Diplospory in DiploidFrontiers in plant science · 2019Article
- Ecological differentiation facilitates fine-scale coexistence of sexual and asexual Boechera.American journal of botany · 2018Article
- Laser-assisted Microdissection (LAM) as a Tool for Transcriptional Profiling of Individual Cell Types.Journal of visualized experiments : JoVE · 2016Article
- Heritable gene expression differences between apomictic clone members in Taraxacum officinale: Insights into early stages of evolutionary divergence in asexual plants.BMC genomics · 2016Article
- Copy number variation of a gene cluster encoding endopolygalacturonase mediates flesh texture and stone adhesion in peach.Journal of experimental botany · 2016Article
- Hybrid apomicts trapped in the ecological niches of their sexual ancestors.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- The conserved chimeric transcript UPGRADE2 is associated with unreduced pollen formation and is exclusively found in apomictic Boechera species.Plant physiology · 2013Article
- A conserved apomixis-specific polymorphism is correlated with exclusive exonuclease expression in premeiotic ovules of apomictic boechera species.Plant physiology · 2013Article
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5 authors.
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Abstract
In asexual (apomictic) plants, the absence of meiosis and sex is expected to lead to mutation accumulation. To compare mutation accumulation in the transcribed genomic regions of sexual and apomictic plants, we performed a double-validated analysis of copy number variation (CNV) on 10 biological replicates each of diploid sexual and diploid apomictic Boechera, using a high-density (>700 K) custom microarray. The Boechera genome demonstrated higher levels of depleted CNV, compared with enriched CNV, irrespective of reproductive mode. Genome-wide patterns of CNV revealed four divergent lineages, three of which contain both sexual and apomictic genotypes. Hence genome-wide CNV reflects at least three independent origins (i.e., expression) of apomixis from different sexual genetic backgrounds. CNV distributions for different families of transposable elements were lineage specific, and the enrichment of LINE/L1 and long term repeat/Copia elements in lineage 3 apomicts is consistent with sex and meiosis being mechanisms for purging genomic parasites. We hypothesize that significant overrepresentation of specific gene ontology classes (e.g., pollen-pistil interaction) in apomicts implies that gene enrichment could be an adaptive mechanism for genome stability in diploid apomicts by providing a polyploid-like system for buffering the effects of deleterious mutations.
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