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Computational and transcriptional evidence for microRNAs in the honey bee genome

Daniel B Weaver* 1 email, Juan M Anzola* 2 email, Jay D Evans* 3 email, Jeffrey G Reid* 4 email, Justin T Reese2 email, Kevin L Childs2,8 email, Evgeny M Zdobnov5,9 email, Manoj P Samanta6 email, Jonathan Miller7 email and Christine G Elsik2 email

1Bee Power, LP, Lynn Grove Road, 16481 CR 319, Navasota, TX 77868 USA

2Department of Animal Science, Texas A&M University, College Station, Texas 77843, USA

3Bee Research Laboratory, USDA-ARS, BARC-E, Beltsville, MD, USA

4WM Keck Center for Interdisciplinary BioScience Training, Houston, TX 77005, USA

5European Molecular Biology Laboratory, Meyerhofstr., Heidelberg, Germany

6Systemix Institute, Los Altos, CA 94024, USA

7Department of Biochemistry, Baylor College of Medicine, Houston, TX 77030, USA

8The Institute for Genome Research, Rockville, MD 20850, USA

9Department of Genetic Medicine and Development, University of Geneva Medical School (CMU), rue Michel-Servet 1, 1211 Geneva 4, Switzerland

author email corresponding author email* Contributed equally

Genome Biology 2007, 8:R97doi:10.1186/gb-2007-8-6-r97

Published: 1 June 2007

Subject areas: Molecular biology, Bioinformatics, Development, Genetics


Additional files

Additional data file 1:

Includes miR designation, the sequence of the putative mature honey bee miRNA, the sequences 110 bp up- and downstream of each mature miRNA candidate (putative precursor region), the genomic coordinates of each occurrence of mature and putative precursor miRNA sequences within the bee genome assembly release 4, whether the candidate miRNA is intergenic, intronic, or overlapping a CDS, the GC content of the GC content domain in which the miRNA is embedded (described in [15]), and folding energy.

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Additional data file 2:

Double strands of precursors are shown, with mature miRNA indicated as lower case embedded in the sense strand, which is otherwise uppercase. Note that reverse primers are shown in the 3' to 5' direction, to show alignment to the sense strand.

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Additional data file 3:

The ID column corresponds to gel lanes in part b of Additional data file 9. CT is a predetermined threshold at which fluorescence from PCR products exceeds background fluorescence.

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Additional data file 4:

Mean expression values for queen and worker honey bee tissue-specific samples.

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Additional data file 5:

Primers employed in expression analyses, and expression estimates for pooled samples.

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Additional data file 6:

The RNA sample from array B had a higher concentration of bee brain and thorax than the first.

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Additional data file 7:

There is a different worksheet containing the results of 10 replicates each, for honey bee and Drosophila. Each worksheet provides E-score, Bonferroni corrected E-score, and GO term.

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Additional data file 8:

Folded hairpins for precursors of novel honey bee miRNAs.

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Additional data file 9:

Figure A shows a 15% PAGE separation of small-enriched RNAs from honey bee queen head, thorax, and abdomen, and worker head, thorax, and abdomen. RNA sized at 18-30 nt was excised from the gel and purified for qPCR as described in the text. The left lane shows a 10 nt RNA size marker, with the 10 nt band at bottom left. Figure B shows the size variation of PCR products generated from small-enriched RNA pools and candidate primers. Most products were approximately 75-90 bp in length. Alphanumeric label refers to sample ID as described in Additional data file 3.

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Additional data file 10:

Values indicate relative expressions levels as log10 scale, with SD for three sample replicates, as described in the text.

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