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• W2038915206 abstract "The increase in availability of genomic sequences for a wide range of organisms has revealed gene duplication to be a relatively common event. Encounters with duplicate gene copies have consequently become almost inevitable in the context of collecting gene sequences for inferring species trees. Here we examine the effect of incorporating duplicate gene copies evolving at different rates on tree reconstruction and time estimation of recent and deep divergences in butterflies.Sequences from ultraviolet-sensitive (UVRh), blue-sensitive (BRh), and long-wavelength sensitive (LWRh) opsins,EF-1 and COI were obtained from 27 taxa representing the five major butterfly families (5535 bp total). Both BRh and LWRh are present in multiple copies in some butterfly lineages and the different copies evolve at different rates. Regardless of the phylogenetic reconstruction method used, we found that analyses of combined data sets using either slower or faster evolving copies of duplicate genes resulted in a single topology in agreement with our current understanding of butterfly family relationships based on morphology and molecules. Interestingly, individual analyses of BRh and LWRh sequences also recovered these family-level relationships. Two different relaxed clock methods resulted in similar divergence time estimates at the shallower nodes in the tree, regardless of whether faster or slower evolving copies were used, with larger discrepancies observed at deeper nodes in the phylogeny. The time of divergence between the monarch butterfly Danaus plexippus and the queen D. gilippus (15.3-35.6 Mya) was found to be much older than the time of divergence between monarch co-mimic Limenitis archippus and red-spotted purple L. arthemis (4.7-13.6 Mya), and overlapping with the time of divergence of the co-mimetic passionflower butterflies Heliconius erato and H. melpomene (13.5-26.1 Mya). Our family-level results are congruent with recent estimates found in the literature and indicate an age of 84-113 million years for the divergence of all butterfly families.These results are consistent with diversification of the butterfly families following the radiation of angiosperms and suggest that some classes of opsin genes may be usefully employed for both phylogenetic reconstruction and divergence time estimation." @default.
• W2038915206 created "2016-06-24" @default.
• W2038915206 creator A5007094119 @default.
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• W2038915206 creator A5055639227 @default.
• W2038915206 creator A5074901595 @default.
• W2038915206 date "2009-05-13" @default.
• W2038915206 modified "2023-10-10" @default.
• W2038915206 title "Impact of duplicate gene copies on phylogenetic analysis and divergence time estimates in butterflies" @default.
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• W2038915206 doi "https://doi.org/10.1186/1471-2148-9-99" @default.
• W2038915206 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2689175" @default.
• W2038915206 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19439087" @default.
• W2038915206 hasPublicationYear "2009" @default.
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