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Testing the monophyly of the New Zealand and Australian endemic family Conoesucidae Ross based on combined molecular and morphological data (Insecta: Trichoptera: Sericostomatoidea)
Stockholms universitet, Naturvetenskapliga fakulteten, Zoologiska institutionen.
2009 (Engelska)Ingår i: Zoologica Scripta, ISSN 0300-3256, E-ISSN 1463-6409, Vol. 38, nr 6, s. 563-573Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Conoesucidae (Trichoptera, Insecta) are restricted to SE Australia, Tasmania and New Zealand. The family includes 42 described species in 12 genera, and each genus is endemic to either New Zealand or Australia. Although monophyly has been previously assumed, no morphological characters have been proposed to represent synapomorphies for the group. We collected molecular data from two mitochondrial genes (16S and cytochrome oxidase I), one nuclear gene (elongation factor 1-alpha) (2237-2277 bp in total), and 12 morphological characters to produce the first phylogeny of the family. We combined the molecular and morphological characters and performed both a maximum parsimony analysis and a Bayesian analysis to test the monophyly of the family, and to hypothesize the phylogeny among its genera. The parsimony analysis revealed a single most parsimonious tree with Conoesucidae being a monophyletic taxon and sistergroup to the Calocidae. The Bayesian inference produced a distribution of trees, the consensus of which is supported with posterior probabilities of 100% for 15 out of 22 possible ingroup clades including the most basal branch of the family, indicating strong support for a monophyletic Conoesucidae. The most parsimonious tree and the tree from the Bayesian analysis were identical except that the ingroup genus Pycnocentria changed position by jumping to a neighbouring clade. Based on the assumption that the ancestral conoesucid species was present on both New Zealand and Australia, a biogeographical analysis using the dispersal-vicariance criteria demonstrated that one or two (depending on which of the two phylogenetic reconstructions were applied) sympatric speciation events took place on New Zealand prior to a single, late dispersal from New Zealand to Australia.

Ort, förlag, år, upplaga, sidor
2009. Vol. 38, nr 6, s. 563-573
Nationell ämneskategori
Zoologi
Forskningsämne
zoologisk systematik och evolutionsforskning
Identifikatorer
URN: urn:nbn:se:su:diva-33243DOI: 10.1111/j.1463-6409.2009.00391.xISI: 000270902800002OAI: oai:DiVA.org:su-33243DiVA, id: diva2:282756
Tillgänglig från: 2009-12-21 Skapad: 2009-12-21 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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Malm, Tobias
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Totalt: 82 träffar
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