| Title |
Genomic Approaches Reveal Unexpected Genetic Divergence Within Ciona intestinalis
|
|---|---|
| Published in |
Journal of Molecular Evolution, October 2005
|
| DOI | 10.1007/s00239-005-0009-3 |
| Pubmed ID | |
| Authors |
Miho M. Suzuki, Teruaki Nishikawa, Adrian Bird |
| Abstract |
The invertebrate chordate Ciona intestinalis is a widely used model organism in biological research. Individuals from waters ranging from arctic to temperate are morphologically almost indistinguishable. However, we found significant differences in whole genomic DNA sequence between northern European and Pacific C. intestinalis. Intronic and transposon sequences often appear unrelated between these geographic origins and amino acid substitutions in protein coding sequences indicate a divergence time in excess of 20 MYA. This finding suggests the existence of two cryptic species within the present C. intestinalis species. We found five marker loci which distinguish the two genetic forms by PCR. This analysis revealed that specimens from Naples, Italy, have the Pacific-type genome, perhaps due to human-mediated marine transport of species. Despite major genomic divergence, the two forms could be hybridized in the laboratory. |
Mendeley readers
The data shown below were compiled from readership statistics for 66 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Japan | 1 | 2% |
| Portugal | 1 | 2% |
| Germany | 1 | 2% |
| Unknown | 63 | 95% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 15 | 23% |
| Researcher | 11 | 17% |
| Student > Bachelor | 9 | 14% |
| Student > Master | 9 | 14% |
| Professor > Associate Professor | 6 | 9% |
| Other | 10 | 15% |
| Unknown | 6 | 9% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 42 | 64% |
| Biochemistry, Genetics and Molecular Biology | 10 | 15% |
| Environmental Science | 4 | 6% |
| Chemistry | 2 | 3% |
| Social Sciences | 1 | 2% |
| Other | 3 | 5% |
| Unknown | 4 | 6% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 October 2019.
All research outputs
#7,453,350
of 22,786,087 outputs
Outputs from Journal of Molecular Evolution
#450
of 1,438 outputs
Outputs of similar age
#20,472
of 59,116 outputs
Outputs of similar age from Journal of Molecular Evolution
#5
of 15 outputs
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