Dataset Information

The mitochondrial genome of parasitic wasp: Anisopteromalus calandrae (Howard, 1881) (Hymenoptera: Pteromalidae).

ABSTRACT: The parasitic wasp Anisopteromalus calandrae is a natural enemy of numbers store product pests. The mitochondrial genome (mitogenome) of A. calandrae was obtained by second-generation sequencing. The assembled mitogenome of A. calandrae is 15,954 bp long (GenBank accession: MW817149) and contains 37 typical animal mitochondrial genes. The order of the mitochondrial genes is identical to that of another species of Chalcidoidae (Pteromalus puparum). All protein-coding genes start with ATN codons, and end with TAA, except NAD4 and NAD5 with T.

SUBMITTER: Huang Z

PROVIDER: S-EPMC8218845 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

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The mitochondrial genome of parasitic wasp: Anisopteromalus calandrae (Howard, 1881) (Hymenoptera: Pteromalidae).

Huang Zhengyu Z Dai Haiyan H Lin Qinlu Q Zhang Bin B

Mitochondrial DNA. Part B, Resources 20210621 7

The parasitic wasp Anisopteromalus calandrae is a natural enemy of numbers store product pests. The mitochondrial genome (mitogenome) of A. calandrae was obtained by second-generation sequencing. The assembled mitogenome of A. calandrae is 15,954 bp long (GenBank accession: MW817149) and contains 37 typical animal mitochondrial genes. The order of the mitochondrial genes is identical to that of another species of Chalcidoidae (Pteromalus puparum). All protein-coding g ...[more]

PMID: 34212093

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Project description:We sequenced the nearly complete mtDNA of 3 species of parasitic wasps, Nasonia vitripennis (2 strains), Nasonia giraulti, and Nasonia longicornis, including all 13 protein-coding genes and the 2 rRNAs, and found unusual patterns of mitochondrial evolution. The Nasonia mtDNA has a unique gene order compared with other insect mtDNAs due to multiple rearrangements. The mtDNAs of these wasps also show nucleotide substitution rates over 30 times faster than nuclear protein-coding genes, indicating among the highest substitution rates found in animal mitochondria (normally <10 times faster). A McDonald and Kreitman test shows that the between-species frequency of fixed replacement sites relative to silent sites is significantly higher compared with within-species polymorphisms in 2 mitochondrial genes of Nasonia, atp6 and atp8, indicating directional selection. Consistent with this interpretation, the Ka/Ks (nonsynonymous/synonymous substitution rates) ratios are higher between species than within species. In contrast, cox1 shows a signature of purifying selection for amino acid sequence conservation, although rates of amino acid substitutions are still higher than for comparable insects. The mitochondrial-encoded polypeptides atp6 and atp8 both occur in F0F1ATP synthase of the electron transport chain. Because malfunction in this fundamental protein severely affects fitness, we suggest that the accelerated accumulation of replacements is due to beneficial mutations necessary to compensate mild-deleterious mutations fixed by random genetic drift or Wolbachia sweeps in the fast evolving mitochondria of Nasonia. We further propose that relatively high rates of amino acid substitution in some mitochondrial genes can be driven by a "Compensation-Draft Feedback"; increased fixation of mildly deleterious mutations results in selection for compensatory mutations, which lead to fixation of additional deleterious mutations in nonrecombining mitochondrial genomes, thus accelerating the process of amino acid substitutions.

Dataset Information

The mitochondrial genome of parasitic wasp: Anisopteromalus calandrae (Howard, 1881) (Hymenoptera: Pteromalidae).

Publications

The mitochondrial genome of parasitic wasp: <i>Anisopteromalus calandrae</i> (Howard, 1881) (Hymenoptera: Pteromalidae).

Similar Datasets

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