Статья

Toward reconstructing the evolution of advanced moths and butterflies (Lepidoptera: Ditrysia): an initial molecular study

Jerome C. RegierCenter for Biosystems Research, University of Maryland Biotechnology Institute, College Park, 20742, USA. [email protected]Andreas ZwickCenter for Biosystems Research, University of Maryland Biotechnology Institute, College Park, Maryland, 20742, USAMichael P. CummingsLaboratory of Molecular Evolution, Center for Bioinformatics and Computational Biology, University of Maryland, College Park, Maryland, 20742, USAAkito Y. KawaharaDepartment of Entomology, University of Maryland, College Park, Maryland, 20742, USASoowon ChoDepartment of Entomology, University of Maryland, College Park, Maryland, 20742, USASusan J. WellerDepartment of Entomology, University of Minnesota, St. Paul, Minnesota, 55455, USAAmanda D. RoeDepartment of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, CanadaJoaquín BaixerasCavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Apartat de correus 2085, 46071, Valencia, SpainJohn W. BrownSystematic Entomology Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, Maryland, 20705, USACynthia ParrEncyclopedia of Life, Smithsonian Institution, Washington, D.C. 20013-7012, USADonald R. DavisDepartment of Entomology, Smithsonian Institution, Washington, D.C. 20013-7012, USAMarc E. EpsteinPlant Pest Diagnostics Branch, California Department of Food and Agriculture, 3294 Meadowview Road, Sacramento, California, 95832-1448, USAWinifred HallwachsDepartment of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USAAxel HausmannBavarian State Collection of Zoology, Münchhausenstrasse 21, D-81247, München, GermanyDaniel H. JanzenDepartment of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USAIan J. KitchingDepartment of Entomology, The Natural History Museum, Cromwell Road, London, SW7 5BD, UKM. Alma SolísSystematic Entomology Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, Maryland, 20705, USAShen-Horn YenDepartment of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, 804, TaiwanAdam L. BazinetLaboratory of Molecular Evolution, Center for Bioinformatics and Computational Biology, University of Maryland, College Park, Maryland, 20742, USACharles MitterDepartment of Entomology, University of Maryland, College Park, Maryland, 20742, USA

2009en

ABI

Аннотация

BACKGROUND: In the mega-diverse insect order Lepidoptera (butterflies and moths; 165,000 described species), deeper relationships are little understood within the clade Ditrysia, to which 98% of the species belong. To begin addressing this problem, we tested the ability of five protein-coding nuclear genes (6.7 kb total), and character subsets therein, to resolve relationships among 123 species representing 27 (of 33) superfamilies and 55 (of 100) families of Ditrysia under maximum likelihood analysis. RESULTS: Our trees show broad concordance with previous morphological hypotheses of ditrysian phylogeny, although most relationships among superfamilies are weakly supported. There are also notable surprises, such as a consistently closer relationship of Pyraloidea than of butterflies to most Macrolepidoptera. Monophyly is significantly rejected by one or more character sets for the putative clades Macrolepidoptera as currently defined (P < 0.05) and Macrolepidoptera excluding Noctuoidea and Bombycoidea sensu lato (P < or = 0.005), and nearly so for the superfamily Drepanoidea as currently defined (P < 0.08). Superfamilies are typically recovered or nearly so, but usually without strong support. Relationships within superfamilies and families, however, are often robustly resolved. We provide some of the first strong molecular evidence on deeper splits within Pyraloidea, Tortricoidea, Geometroidea, Noctuoidea and others.Separate analyses of mostly synonymous versus non-synonymous character sets revealed notable differences (though not strong conflict), including a marked influence of compositional heterogeneity on apparent signal in the third codon position (nt3). As available model partitioning methods cannot correct for this variation, we assessed overall phylogeny resolution through separate examination of trees from each character set. Exploration of "tree space" with GARLI, using grid computing, showed that hundreds of searches are typically needed to find the best-feasible phylogeny estimate for these data. CONCLUSION: Our results (a) corroborate the broad outlines of the current working phylogenetic hypothesis for Ditrysia, (b) demonstrate that some prominent features of that hypothesis, including the position of the butterflies, need revision, and (c) resolve the majority of family and subfamily relationships within superfamilies as thus far sampled. Much further gene and taxon sampling will be needed, however, to strongly resolve individual deeper nodes.

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Идентификаторы

DOI: 10.1186/1471-2148-9-280

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Цитирований: 17Использованных источников: 0

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