A molecular analysis of the Gelechiidae (Lepidoptera, Gelechioidea) with an interpretative grouping of its taxa

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Ole Karsholt, Marko Mutanen, Sangmi Lee, Lauri Kaila

We re-examine the higher level phylogeny and evolutionary affinities of the family Gelechiidae (Lepidoptera: Gelechioidea) based on DNA sequence data for one mitochondrial gene (cytochrome c oxidase subunit I ) and seven nuclear genes
(Elongation Factor-1α, wingless, Ribosomal protein S5, Isocitrate dehydrogenase, Cytosolic malate dehydrogenase, Glyceraldehyde-3-phosphate dehydrogenase and Carbamoylphosphate synthase domain protein). Fifty-two taxa representing nearly all established subfamilies and tribes of Gelechiidae, and about 10% of described
gelechiid genera, in addition to five outgroup taxa were sequenced. Data matrices (6157 bp total) were analysed under model-based evolutionary methods (Maximum Likelihood and Bayesian Inference), resulting in novel high-level phylogenetic
interrelationships. The best supported cladogram divided the Gelechiidae into six distinct clades corresponding to the subfamilies Anacampsinae, Dichomeridinae, Apatetrinae, Thiotrichinae, Anomologinae and Gelechiinae (+ Physoptilinae, which were not available for study). The results suggest the following adjustments in gelechiid interrelationships: Brachmini is nested within Dichomeridinae; Anarsiini is the sister group of Chelariini; Pexicopiinae is the sister group of Apatetrinae, here suggested to be treated as a tribe Pexicopiini of Apatetrinae. A new subfamily Thiotrichinae (subfam.n.) is proposed on the basis of the resurrected genus Thiotricha Meyrick (gen.rev.), which includes Macrenches Meyrick, Palumbina Rondani and Polyhymno Chambers. Gelechiidae display a wide array of life-history strategies, but the diversity in patterns of larval mode of life has direct phylogenetic correlation only below subfamily level, suggesting multiple origins and/or frequent reversals for traits
such as external or internal feeding and leaf mining within the family.
TidsskriftSystematic Entomology
Udgave nummer2
Sider (fra-til)334-348
Antal sider15
StatusUdgivet - apr. 2013

ID: 49324333