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Mitochondrial phylogenomics of Hemiptera reveals adaptive innovations driving the diversification of true bugs.
- Source :
-
Proceedings of the Royal Society B: Biological Sciences . 9/13/2017, Vol. 284 Issue 1862, p1-10. 10p. - Publication Year :
- 2017
-
Abstract
- Hemiptera, the largest non-holometabolous order of insects, represents approximately 7% of metazoan diversity. With extraordinary life histories and highly specialized morphological adaptations, hemipterans have exploited diverse habitats and food sources through approximately 300 Myr of evolution. To elucidate the phylogeny and evolutionary history of Hemiptera, we carried out the most comprehensive mitogenomics analysis on the richest taxon sampling to date covering all the suborders and infraorders, including 34 newly sequenced and 94 published mitogenomes. With optimized branch length and sequence heterogeneity, Bayesian analyses using a site-heterogeneous mixture model resolved the higher-level hemipteran phylogeny as (Sternorrhyncha, (Auchenorrhyncha, (Coleorrhyncha, Heteroptera))). Ancestral character state reconstruction and divergence time estimation suggest that the success of true bugs (Heteroptera) is probably due to angiosperm coevolution, but key adaptive innovations (e.g. prognathous mouthpart, predatory behaviour, and haemelytron) facilitated multiple independent shifts among diverse feeding habits and multiple independent colonizations of aquatic habitats. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HEMIPTERA
*MITOCHONDRIAL enzymes
*PHYLOGENY
*AQUATIC habitats
*TAXONOMY
Subjects
Details
- Language :
- English
- ISSN :
- 09628452
- Volume :
- 284
- Issue :
- 1862
- Database :
- Academic Search Index
- Journal :
- Proceedings of the Royal Society B: Biological Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 125281811
- Full Text :
- https://doi.org/10.1098/rspb.2017.1223