ArticleJournal of molecular evolution2010
Accelerated evolutionary rate of housekeeping genes in tunicates.
Article in Journal of molecular evolution, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 45 citations in OpenAlex.
- First Description of Typhlosole in Ascidian Styela clava: Structure and Putative Function.Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2025Article
- Evolutionary History of TOPIIA Topoisomerases in Animals.Journal of molecular evolution · 2022Article
- An elongated COI fragment to discriminate botryllid species and as an improved ascidian DNA barcode.Scientific reports · 2021Article
- Biological sulfur in the blood cells of Ascidia ceratodes: XAS spectroscopy and a cellular-enzymatic hypothesis for vanadium reduction in the ascidians.Journal of inorganic biochemistry · 2020Article
- Origins and Bioactivities of Natural Compounds Derived from Marine Ascidians and Their Symbionts.Marine drugs · 2019Review
- Sexual dimorphism and rapid turnover in gene expression in pre-reproductive seedlings of a dioecious herb.Annals of botany · 2019Article
- Phylogenomics resolves the evolutionary chronicle of our squirting closest relatives.BMC biology · 2018Article
- Article
- De novo draft assembly of the Botrylloides leachii genome provides further insight into tunicate evolution.Scientific reports · 2018Article
- Developmental system drift in motor ganglion patterning between distantly related tunicates.EvoDevo · 2018Article
- Genome-wide survey of miRNAs and their evolutionary history in the ascidian, Halocynthia roretzi.BMC genomics · 2017Article
- Shedding Light on the Grey Zone of Speciation along a Continuum of Genomic Divergence.PLoS biology · 2016Article
- Conserved Noncoding Elements in the Most Distant Genera of Cephalochordates: The Goldilocks Principle.Genome biology and evolution · 2016Article
- Evolutionary genomics of fast evolving tunicates.Genome biology and evolution · 2014Review
- Ascidian mitogenomics: comparison of evolutionary rates in closely related taxa provides evidence of ongoing speciation events.Genome biology and evolution · 2014Article
- Vascular Endothelial Growth Factor Receptor Family in Ascidians, Halocynthia roretzi (Sea Squirt). Its High Expression in Circulatory System-Containing Tissues.International journal of molecular sciences · 2013Article
- Deep sequencing of mixed total DNA without barcodes allows efficient assembly of highly plastic ascidian mitochondrial genomes.Genome biology and evolution · 2013Article
- The population genomics of a fast evolver: high levels of diversity, functional constraint, and molecular adaptation in the tunicate Ciona intestinalis.Genome biology and evolution · 2012Article
- Article
- Potential pitfalls of modelling ribosomal RNA data in phylogenetic tree reconstruction: evidence from case studies in the Metazoa.BMC evolutionary biology · 2011Article
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phylogenomics has recently revealed that tunicates represent the sister-group of vertebrates in the newly defined clade Olfactores. However, phylogenomic and comparative genomic studies have also suggested that tunicates are characterized by an elevated rate of molecular evolution and a high degree of genomic divergence. Despite the recurrent interest in the group, the picture of tunicate peculiar evolutionary dynamics is still fragmentary, as it mainly lies in studies focusing on only a few model species. In order to expand the available genomic data for the group, we used the high-throughput 454 technology to sequence the partial transcriptome of a previously unsampled tunicate, Microcosmus squamiger. This allowed us to get further insights into tunicate-accelerated evolution through a comparative analysis based on pertinent phylogenetic markers, i.e., a core of 35 housekeeping genes conserved across bilaterians. Our results showed that tunicates evolved on average about two times faster than the other chordates, yet the degree of this acceleration varied extensively upon genes and upon lineages. Appendicularia and Aplousobranchia were detected as the most divergent groups which were also characterized by highly heterogeneous substitution rates across genes. Finally, an estimation of the d (N)/d (S) ratio in three pairs of closely related taxa within Olfactores did not reveal strong differences between the tunicate and vertebrate lineages suggesting that for this set of housekeeping genes, the accelerated evolution of tunicates is plausibly due to an elevated mutation rate rather than to particular selective effects.
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