New Dielis species and structural dichotomy of the mitochondrial cox2 gene in Scoliidae wasps
© 2023. The Author(s)..
Some mitochondrial protein-coding genes of protists and land plants have split over the course of evolution into complementary genes whose products can form heteromeric complexes that likely substitute for the undivided proteins. One of these genes, cox2, has also been found to have split in animals, specifically in Scoliidae wasps (Hymenoptera: Apocrita) of the genus Dielis (Campsomerini), while maintaining the conventional structure in related Scolia (Scoliini). Here, a hitherto unrecognized Nearctic species of Dielis, D. tejensis, is described based on its phenotype and mtDNA. The mitogenome of D. tejensis sp. nov. differs from that of the sympatric sibling species Dielis plumipes fossulana by the reduced size of the cox2-dividing insert, which, however, still constitutes the fifth part of the mtDNA; an enlarged nad2-trnW intergenic region; the presence of two trnKttt paralogues; and other features. Both species of Dielis have a unique insertion of a threonine in COXIIA, predicted to be involved in COXIIA-COXIIB docking, and substitutions of two hydrophobic residues with redox-active cysteines around the CuA centre in COXIIB. Importantly, the analysis of mtDNA from another Campsomerini genus, Megacampsomeris, shows that its cox2 gene is also split. The presented data highlight evolutionary processes taking place in hymenopteran mitogenomes that do not fall within the mainstream of animal mitochondrion evolution.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:13 |
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| Enthalten in: |
Scientific reports - 13(2023), 1 vom: 02. Feb., Seite 1950 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Szafranski, Przemyslaw [VerfasserIn] |
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| Anmerkungen: |
Date Completed 06.02.2023 Date Revised 17.03.2023 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1038/s41598-023-27806-x |
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| Förderinstitution / Projekttitel: |
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NLM352427361 |
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| 245 | 1 | 0 | |a New Dielis species and structural dichotomy of the mitochondrial cox2 gene in Scoliidae wasps |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2023. The Author(s). | ||
| 520 | |a Some mitochondrial protein-coding genes of protists and land plants have split over the course of evolution into complementary genes whose products can form heteromeric complexes that likely substitute for the undivided proteins. One of these genes, cox2, has also been found to have split in animals, specifically in Scoliidae wasps (Hymenoptera: Apocrita) of the genus Dielis (Campsomerini), while maintaining the conventional structure in related Scolia (Scoliini). Here, a hitherto unrecognized Nearctic species of Dielis, D. tejensis, is described based on its phenotype and mtDNA. The mitogenome of D. tejensis sp. nov. differs from that of the sympatric sibling species Dielis plumipes fossulana by the reduced size of the cox2-dividing insert, which, however, still constitutes the fifth part of the mtDNA; an enlarged nad2-trnW intergenic region; the presence of two trnKttt paralogues; and other features. Both species of Dielis have a unique insertion of a threonine in COXIIA, predicted to be involved in COXIIA-COXIIB docking, and substitutions of two hydrophobic residues with redox-active cysteines around the CuA centre in COXIIB. Importantly, the analysis of mtDNA from another Campsomerini genus, Megacampsomeris, shows that its cox2 gene is also split. The presented data highlight evolutionary processes taking place in hymenopteran mitogenomes that do not fall within the mainstream of animal mitochondrion evolution | ||
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