| Title |
The Complete Mitochondrial Genome of the Land Snail Cornu aspersum (Helicidae: Mollusca): Intra-Specific Divergence of Protein-Coding Genes and Phylogenetic Considerations within Euthyneura
|
|---|---|
| Published in |
PLOS ONE, June 2013
|
| DOI | 10.1371/journal.pone.0067299 |
| Pubmed ID | |
| Authors |
Juan Diego Gaitán-Espitia, Roberto F. Nespolo, Juan C. Opazo |
| Abstract |
The complete sequences of three mitochondrial genomes from the land snail Cornu aspersum were determined. The mitogenome has a length of 14050 bp, and it encodes 13 protein-coding genes, 22 transfer RNA genes and two ribosomal RNA genes. It also includes nine small intergene spacers, and a large AT-rich intergenic spacer. The intra-specific divergence analysis revealed that COX1 has the lower genetic differentiation, while the most divergent genes were NADH1, NADH3 and NADH4. With the exception of Euhadra herklotsi, the structural comparisons showed the same gene order within the family Helicidae, and nearly identical gene organization to that found in order Pulmonata. Phylogenetic reconstruction recovered Basommatophora as polyphyletic group, whereas Eupulmonata and Pulmonata as paraphyletic groups. Bayesian and Maximum Likelihood analyses showed that C. aspersum is a close relative of Cepaea nemoralis, and with the other Helicidae species form a sister group of Albinaria caerulea, supporting the monophyly of the Stylommatophora clade. |
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Colombia | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 68 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 2 | 3% |
| United Kingdom | 2 | 3% |
| Chile | 2 | 3% |
| France | 1 | 1% |
| Australia | 1 | 1% |
| Colombia | 1 | 1% |
| China | 1 | 1% |
| Venezuela, Bolivarian Republic of | 1 | 1% |
| United States | 1 | 1% |
| Other | 1 | 1% |
| Unknown | 55 | 81% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 13 | 19% |
| Student > Master | 11 | 16% |
| Student > Ph. D. Student | 9 | 13% |
| Student > Bachelor | 6 | 9% |
| Other | 4 | 6% |
| Other | 14 | 21% |
| Unknown | 11 | 16% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 35 | 51% |
| Environmental Science | 5 | 7% |
| Biochemistry, Genetics and Molecular Biology | 5 | 7% |
| Computer Science | 2 | 3% |
| Engineering | 2 | 3% |
| Other | 7 | 10% |
| Unknown | 12 | 18% |