Syntenic Analysis of Banana's Paleopolyploidy Events

Date: Tuesday, January 14, 2014
Time: 10:30 AM
Room: Pacific Salon 6-7 (2nd Floor)
Eric Lyons , University of Arizona, Tucson, AZ
The genome of Musa acuminata var. DH Pahang (banana) was recently sequenced, providing a much needed additional monocot genome which have been exclusively grasses.  Banana, as with the other sequenced monocot genomes, has a rich history of paleopolyploidy events.  These events are often uncovered through intragenomic and intergenomic comparisons in to identify colinear gene content.  However, unravelling these events by analyzing the extant genome structure is often difficult due to fractionation (homeologous gene loss), repeated polyploidy events, and lack of appropriate comparator genomes.  This talk will focus on using the comparative genomics platform, CoGe, to analyze the banana genome for paleopolyploidy events through intragenomic whole genome comparisons, intergenomic whole genome comparisons, and mico-syntenic analyses of multiple genomic regions.  Additional analyses will include the integration of evolutionary data (synonymous mutation rate values) to help differentiate polyploidy events.  CoGe can be accessed at http://genomevolution.org, and the banana genome in CoGe at http://genomevolution.org/r/5euy .