BAC to the Future – Unbiased Bacterial Artificial Chromosome (BAC) as a Tool for Synthetic Biology

Date: Tuesday, January 14, 2014
Time: 11:30 AM
Room: Pacific Salon 1
Cheng-Cang Charles Wu , Intact Genomics, Inc., St. Louis, MO
The combination of large-insert bacterial artificial chromosome (BAC) and DNA sequencing technologies has been proved as the most powerful tool to dissect many complex genomes and or targeted genomic regions. BAC transgenic mice have been successfully used for studying human functional genomics and diseases. However, traditionally BAC libraries built by restriction partial digestion are inherently biased with many genomic gaps. To completely cover interested-target genomic regions, finish genomes, or obtain the highest quality of genome sequencing assemblies of the extremely complex repeat-rich plant and animal genomes, novel technologies are also needed to bridge the gaps between massively parallel short-read sequencing technologies.  We have successfully developed and continuously optimize novel technologies for unbiased large DNA isolation, purification, manipulation and Random Shear BAC cloning. We have also demonstrated that the Random Shear BAC libraries are unbiased and contains fewer gaps than conventional restriction enzyme based methods. Using this technology we are closing the gaps in the Arabidopsis genome.  We are able to sequence and assemble previously inaccessible regions of this genome by combining the new BAC library preparation methods with high depth short reads and long PacBio reads.  We will discuss the unbiased BAC as a tool of synthetic biology.