Phylogenetic relationships of family groups in Pentatomoidea based on morphology and DNA sequences (Insecta: Heteroptera)

  title={Phylogenetic relationships of family groups in Pentatomoidea based on morphology and DNA sequences (Insecta: Heteroptera)},
  author={Jocelia Grazia and Randall T. Schuh and Ward C. Wheeler},
Phylogenetic relationships within the Pentatomoidea are investigated through the coding and analysis of character data derived from morphology and DNA sequences. [] Key Method In total, 135 terminal taxa were investigated, representing most of the major family groups; 84 ingroup taxa are coded for 57 characters in a morphological matrix. As many as 3500 bp of DNA data are adduced for each of 52 terminal taxa, including 44 ingroup taxa, comprising the 18S rRNA, 16S rRNA, 28S rRNA, and COI gene regions…

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A cladistic analysis based on a combination of fossil and extant morphological characters clarified the phylogenetic status of the new family and has allowed the reconstruction of intersuperfamily and interfamily relationships within the Infraorder Pentatomomorpha.



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Thirty-four family group taxa and 57 characters are used to analyze cladistically the heteropteran infraorder Pentatomomorpha and the family Lygaeoidea is shown to be paraphyletic.

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Phylogenetic relationships among the holometabolous insect orders were inferred from cladistic analysis of nucleotide sequences of 18S ribosomal DNA (rDNA) and 28S rDNA and morphological characters.

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Phylogenetic inference based strictly on transversion differences confirmed traditional generic and tribal groupings, i.e., Prosimulium fuscum (Syme & Davies) is close to ProSimulium magnum (Dyar & Shannon); Simulium decorum (Walker), SimULium venustum s.l. (Say), and Simulius vittatum s.

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The transferal of Brachystethus to Edessinae is here proposed, based on the cladogram, and congruence between the distributional pattern of the clade formed by B. rubromaculatus Dallas, 1851, and vicariant events on Neotropical region, in the late Cretaceous is shown.

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Combined (‘spliced’) analysis of both genes improves topological congruence with morphological groupings relative to that of either partition, suggesting that the class of snRNAs may provide several phylogenetically useful genes.

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