The IGBB logo features a stylized "pinwheel" to the left of the letters IGBB in caps in a modified Bank Gothic Pro font.
The six-part "pinwheel" in the IGBB logo is:
- A symbol of lab unity as it shows "parts" coming together to make a "whole."
- A flower or three-leaf clover representing (a) plants, important subjects of our research, (b) life in general, and (c) the life sciences (biology).
- A set of chromosomes being moved towards the center of a cell.
- The Sun - another symbol of life.
- A protein composed of six subunits (e.g., a protein pore).
- Three foxes putting their heads together. The fox is a symbol of cleverness in Western folklore. Since the IGBB is organized into three service groups (Genomics, Proteomics/Metabolomics, and Biocomputing/Computational Biology), the foxes could represent the three disciplines working together.
- A scientist jumping for joy after making an important discovery.
- A windmill, the primary symbol associated with Cervantes' famous character Don Quixote - Like Don Quixote, scientists must be willing to attack 'wicked giants' (e.g., ignorance, racism, sexism, intolerance, use of the term 'science' in the promotion of non-scientific causes), champion worthy causes (e.g., education, intellectual freedom, human rights, environmental responsibility), and remain optimistic in the face of defeat (e.g., most days in the lab). Hopefully, however, the average scientist can accomplish these tasks without becoming delusional (a problem that squashed Quixote's dreams of becoming a plant molecular biologist).
- A DNA double-helix or protein in cross section.
- Antibodies binding to a protein.
- Whatever you want it to be.

Dr. Olga PechanovaSenior Research Associate
PROTEOMICS LEAD
email(662) 325-4570
Pace 115A

Population genomics of parallel hybrid zones in the mimetic butterflies, H. melpomene and H. erato
IGBB Authors:
Brian A. CountermanPUBLICATION YEAR:
2014IMPACT FACTOR:
15.425CITATION COUNT:
95Nadeau NJ, Ruiz M, Salazar P, Counterman B, Medina JA, Ortiz-Zuazaga H, Morrison A, McMillan WO, Jiggins CD, Papa R (2014) Population genomics of parallel hybrid zones in the mimetic butterflies, H. melpomene and H. erato.
Genome Research 24(8): 1316-1333.
DOI:
10.1101/gr.169292.113EID:
2-s2.0-84905666210PMID: 24823669
DOWNLOAD PDFABSTRACTHybrid zones can be valuable tools for studying evolution and identifying genomic regions responsible for adaptive divergence and underlying phenotypic variation. Hybrid zones between subspecies of Heliconius butterflies can be very narrow and are maintained by strong selection acting on color pattern. The comimetic species, H. erato and H. melpomene, have parallel hybrid zones in which both species undergo a change from one color pattern form to another. We use restriction-associated DNA sequencing to obtain several thousand genome-wide sequence markers and use these to analyze patterns of population divergence across two pairs of parallel hybrid zones in Peru and Ecuador. We compare two approaches for analysis of this type of data-alignment to a reference genome and de novo assembly-and find that alignment gives the best results for species both closely (H. melpomene) and distantly (H. erato, ∼15% divergent) related to the reference sequence. Our results confirm that the color pattern controlling loci account for the majority of divergent regions across the genome, but we also detect other divergent regions apparently unlinked to color pattern differences. We also use association mapping to identify previously unmapped color pattern loci, in particular the Ro locus. Finally, we identify a new cryptic population of H. timareta in Ecuador, which occurs at relatively low altitude and is mimetic with H. melpomene malleti.
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