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Recent intron gain in elongation factor-1alpha of colletid bees (Hymenoptera: Colletidae).
Mol Biol Evol. 2004 Apr; 21(4):691-6.MB

Abstract

We discovered the presence of a unique spliceosomal intron in the F1 copy of elongation factor-1alpha (EF-1alpha) restricted to the bee family Colletidae (Hymenoptera: Apoidae). The intron ranges in size from 101 to 1044 bp and shows no positional sliding. Our data also demonstrate the complete absence of this intron from exemplars representing all other bee families, as well as from close hymenopteran relatives. A review of the literature finds that this intron is likewise absent from all other arthropods for which data are available. This provides unambiguous evidence for a relatively recent intron insertion event in the colletid common ancestor and, at least in this specific instance, lends support to the introns-late hypothesis. The comparative distribution of this novel intron also supports the monophyly of Colletidae and the exclusion of the Stenotritidae from this family, providing an example of the potential of some introns to act as robust markers of shared descent.

Authors+Show Affiliations

Brady SG
Department of Entomology, Cornell University, Ithaca, New York, USA. brady.sean@nmnh.si.edu
Danforth BN
No affiliation info available

MeSH

Amino Acid SequenceAnimalsBeesEvolution, MolecularIntronsMolecular Sequence DataPeptide Elongation Factor 1PhylogenySequence Alignment

Pub Type(s)

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

Language

eng

PubMed ID

14739243

Citation

Brady, Seán G., and Bryan N. Danforth. "Recent Intron Gain in Elongation Factor-1alpha of Colletid Bees (Hymenoptera: Colletidae)." Molecular Biology and Evolution, vol. 21, no. 4, 2004, pp. 691-6.
Brady SG, Danforth BN. Recent intron gain in elongation factor-1alpha of colletid bees (Hymenoptera: Colletidae). Mol Biol Evol. 2004;21(4):691-6.
Brady, S. G., & Danforth, B. N. (2004). Recent intron gain in elongation factor-1alpha of colletid bees (Hymenoptera: Colletidae). Molecular Biology and Evolution, 21(4), 691-6.
Brady SG, Danforth BN. Recent Intron Gain in Elongation Factor-1alpha of Colletid Bees (Hymenoptera: Colletidae). Mol Biol Evol. 2004;21(4):691-6. PubMed PMID: 14739243.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Recent intron gain in elongation factor-1alpha of colletid bees (Hymenoptera: Colletidae). AU - Brady,Seán G, AU - Danforth,Bryan N, Y1 - 2004/01/22/ PY - 2004/1/24/pubmed PY - 2005/1/19/medline PY - 2004/1/24/entrez SP - 691 EP - 6 JF - Molecular biology and evolution JO - Mol Biol Evol VL - 21 IS - 4 N2 - We discovered the presence of a unique spliceosomal intron in the F1 copy of elongation factor-1alpha (EF-1alpha) restricted to the bee family Colletidae (Hymenoptera: Apoidae). The intron ranges in size from 101 to 1044 bp and shows no positional sliding. Our data also demonstrate the complete absence of this intron from exemplars representing all other bee families, as well as from close hymenopteran relatives. A review of the literature finds that this intron is likewise absent from all other arthropods for which data are available. This provides unambiguous evidence for a relatively recent intron insertion event in the colletid common ancestor and, at least in this specific instance, lends support to the introns-late hypothesis. The comparative distribution of this novel intron also supports the monophyly of Colletidae and the exclusion of the Stenotritidae from this family, providing an example of the potential of some introns to act as robust markers of shared descent. SN - 0737-4038 UR - https://www.unboundmedicine.com/medline/citation/14739243/Recent_intron_gain_in_elongation_factor_1alpha_of_colletid_bees__Hymenoptera:_Colletidae__ DB - PRIME DP - Unbound Medicine ER -