University of Florida2014-09-27 11:21 AM

Phylogenomics provides strong evidence for relationships of butterflies and moths

Abstract

Butterflies and moths constitute some of the most popular and charismatic insects. Lepidoptera include approximately 160 000 described species, many of which are important model organisms. Previous studies on the evolution of Lepidoptera did not confidently place butterflies, and many relationships among superfamilies in the megadiverse clade Ditrysia remain largely uncertain. We generated a molecular dataset with 46 taxa, combining 33 new transcriptomes with 13 available genomes, transcriptomes and expressed sequence tags (ESTs). Using HaMStR with a Lepidoptera-specific core-orthologue set of single copy loci, we identified 2696 genes for inclusion into the phylogenomic analysis. Nucleotides and amino acids of the all-gene, all-taxon dataset yielded nearly identical, well-supported trees. Monophyly of butterflies (Papilionoidea) was strongly supported, and the group included skippers (Hesperiidae) and the enigmatic butterfly–moths (Hedylidae). Butterflies were placed sister to the remaining obtectomeran Lepidoptera, and the latter was grouped with greater than or equal to 87% bootstrap support. Establishing confident relationships among the four most diverse macroheteroceran superfamilies was previously challenging, but we recovered 100% bootstrap support for the following relationships: ((Geometroidea, Noctuoidea), (Bombycoidea, Lasiocampoidea)). We present the first robust, transcriptome-based tree of Lepidoptera that strongly contradicts historical placement of butterflies, and provide an evolutionary framework for genomic, developmental and ecological studies on this diverse insect order.


Full Article

KEYWORDS

SHARE & LIKE

COMMENTS

ABOUT THE AUTHOR

University of Florida

0 Following 0 Fans 0 Projects 7 Articles

SIMILAR ARTICLES

Highlights•We model saltwater anglers' site choices before, during, and after the DWH spill.•Anglers in the Southeast U.S. avoided areas affected by th

Read More

AbstractButterflies and moths constitute some of the most popular and charismatic insects. Lepidoptera include approximately 160 000 described species,

Read More

SUMMARYWe examined the King-Devick (K-D) test, a vision-based test of rapid number naming, as a complement to components of the Sport Concussion Assess

Read More

BACKGROUNDClomiphene is the current first-line infertility treatment in women with the polycystic ovary syndrome, but aromatase inhibitors, including l

Read More

AbstractBackground Aspirin use has been shown to be an effective tool in cardiovascular disease (CVD) prevention among high‐risk patients. The patient‐

Read More

AbstractBackgroundConclusive data about cardiovascular toxicity of nonsteroidal anti-inflammatory drugs (NSAIDs) are sparse. We hypothesized that regul

Read More

AbstractWhen net deforestation declines in the tropics, attention will be drawn to the composition and structure of the retained, restored, invaded, an

Read More