Mitochondrial COI sequences in mites: evidence for variations in base composition
| Autor: | Dominique Fournier, Maria Navajas, Jacques Lagnel, Pierre Boursot, Jean-Paul Gutierrez |
|---|---|
| Přispěvatelé: | Écologie Animale et Zoologie Agricole (EAZA), Institut National de la Recherche Agronomique (INRA), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Université Montpellier 2 - Sciences et Techniques (UM2), Université de Montpellier (UM) |
| Rok vydání: | 1996 |
| Předmět: |
0106 biological sciences
Mitochondrial DNA ADN Molecular Sequence Data Zoology Tenuipalpidae DNA Mitochondrial 01 natural sciences COI Electron Transport Complex IV 03 medical and health sciences Genetic variation MITOCHONDRIE Genetics Mite Animals Cytochrome c oxidase Molecular Biology Gene 030304 developmental biology mitochondrial genetic code Base Composition Mites 0303 health sciences Base Sequence biology Phylum spider mites Genetic Variation GENETIQUE BIOLOGIE MOLECULAIRE biology.organism_classification Genetic code CYTOTAXONOMIE [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology 010602 entomology Insect Science biology.protein Tetranychidae |
| Zdroj: | Insect Molecular Biology Insect Molecular Biology, Wiley, 1996, 5 (4), pp.281-285. ⟨10.1111/j.1365-2583.1996.tb00102.x⟩ |
| ISSN: | 1365-2583 0962-1075 |
| DOI: | 10.1111/j.1365-2583.1996.tb00102.x |
| Popis: | Studies of mitochondrial DNA sequences in a variety of animals have shown important differences between phyla, including differences in the genetic codes used, and varying constraints on base composition. In that respect, little is known of mites, an important and diversified group. We sequenced a portion (340 nt) of the cytochrome oxidase subunit I (COI) encoding gene in twenty species of phytophagous mites belonging to nine genera of the two families #Tetranychidae$ and #Tenuipalpidae$. The mitochondrial genetic code used in mites appeared to be the same as in insects. As is generally also the case in insects, the mite sequences were very rich in A + T (75% on average), especially at the third codon position (94%). However, important variations of base composition were observed among mite species, one of them showing as little as 69% A + T. Variations of base composition occur mostly through synonymous transitions, and do not have detectable effects on polypeptide evolution in this group. (Résumé d'auteur) |
| Databáze: | OpenAIRE |
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