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The history of early bee diversification based on five genes plus morphology.
Proc Natl Acad Sci U S A. 2006 Oct 10; 103(41):15118-23.PN

Abstract

Bees, the largest (>16,000 species) and most important radiation of pollinating insects, originated in early to mid-Cretaceous, roughly in synchrony with the angiosperms (flowering plants). Understanding the diversification of the bees and the coevolutionary history of bees and angiosperms requires a well supported phylogeny of bees (as well as angiosperms). We reconstructed a robust phylogeny of bees at the family and subfamily levels using a data set of five genes (4,299 nucleotide sites) plus morphology (109 characters). The molecular data set included protein coding (elongation factor-1alpha, RNA polymerase II, and LW rhodopsin), as well as ribosomal (28S and 18S) nuclear gene data. Analyses of both the DNA data set and the DNA+morphology data set by parsimony and Bayesian methods yielded a single well supported family-level tree topology that places Melittidae as a paraphyletic group at the base of the phylogeny of bees. This topology ("Melittidae-LT basal") is significantly better than a previously proposed alternative topology ("Colletidae basal") based both on likelihood and Bayesian methods. Our results have important implications for understanding the early diversification, historical biogeography, host-plant evolution, and fossil record of bees. The earliest branches of bee phylogeny include lineages that are predominantly host-plant specialists, suggesting that host-plant specificity is an ancestral trait in bees. Our results suggest an African origin for bees, because the earliest branches of the tree include predominantly African lineages. These results also help explain the predominance of Melittidae, Apidae, and Megachilidae among the earliest fossil bees.

Authors+Show Affiliations

Department of Entomology, 3119 Comstock Hall, Cornell University, Ithaca, NY 14853, USA. bnd1@cornell.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

17015826

Citation

Danforth, Bryan N., et al. "The History of Early Bee Diversification Based On Five Genes Plus Morphology." Proceedings of the National Academy of Sciences of the United States of America, vol. 103, no. 41, 2006, pp. 15118-23.
Danforth BN, Sipes S, Fang J, et al. The history of early bee diversification based on five genes plus morphology. Proc Natl Acad Sci U S A. 2006;103(41):15118-23.
Danforth, B. N., Sipes, S., Fang, J., & Brady, S. G. (2006). The history of early bee diversification based on five genes plus morphology. Proceedings of the National Academy of Sciences of the United States of America, 103(41), 15118-23.
Danforth BN, et al. The History of Early Bee Diversification Based On Five Genes Plus Morphology. Proc Natl Acad Sci U S A. 2006 Oct 10;103(41):15118-23. PubMed PMID: 17015826.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The history of early bee diversification based on five genes plus morphology. AU - Danforth,Bryan N, AU - Sipes,Sedonia, AU - Fang,Jennifer, AU - Brady,Seán G, Y1 - 2006/10/02/ PY - 2006/10/4/pubmed PY - 2006/12/9/medline PY - 2006/10/4/entrez SP - 15118 EP - 23 JF - Proceedings of the National Academy of Sciences of the United States of America JO - Proc Natl Acad Sci U S A VL - 103 IS - 41 N2 - Bees, the largest (>16,000 species) and most important radiation of pollinating insects, originated in early to mid-Cretaceous, roughly in synchrony with the angiosperms (flowering plants). Understanding the diversification of the bees and the coevolutionary history of bees and angiosperms requires a well supported phylogeny of bees (as well as angiosperms). We reconstructed a robust phylogeny of bees at the family and subfamily levels using a data set of five genes (4,299 nucleotide sites) plus morphology (109 characters). The molecular data set included protein coding (elongation factor-1alpha, RNA polymerase II, and LW rhodopsin), as well as ribosomal (28S and 18S) nuclear gene data. Analyses of both the DNA data set and the DNA+morphology data set by parsimony and Bayesian methods yielded a single well supported family-level tree topology that places Melittidae as a paraphyletic group at the base of the phylogeny of bees. This topology ("Melittidae-LT basal") is significantly better than a previously proposed alternative topology ("Colletidae basal") based both on likelihood and Bayesian methods. Our results have important implications for understanding the early diversification, historical biogeography, host-plant evolution, and fossil record of bees. The earliest branches of bee phylogeny include lineages that are predominantly host-plant specialists, suggesting that host-plant specificity is an ancestral trait in bees. Our results suggest an African origin for bees, because the earliest branches of the tree include predominantly African lineages. These results also help explain the predominance of Melittidae, Apidae, and Megachilidae among the earliest fossil bees. SN - 0027-8424 UR - https://www.unboundmedicine.com/medline/citation/17015826/The_history_of_early_bee_diversification_based_on_five_genes_plus_morphology_ L2 - http://www.pnas.org/cgi/pmidlookup?view=long&pmid=17015826 DB - PRIME DP - Unbound Medicine ER -