2011 Berkeley Workshop
Introduction
- Who has used CoGe?
- Preamble:
- Store any verison of any genome from all of life
- Interconnected tools to analyze genomes at multiple levels of resolution
- Emphasis on exploring genomes as a biologist would an organism
- General types of research questions:
- I am interested in a group of organisms. . .
- I am interested in a group of genes . . .
- CoGe has tools to help answer questions in light of genome structure, dynamics, and evolution
- Who are you?
- Name
- Genes and genomes of interest
- Anything particular you'd like to know by the end of the workshop
- Workshop Organization
- Overview of CoGe's tools using example analyses to understand how they are linked together
- Open QnA
Always ask questions
- First, anyone interested in comparing large genomes
- CoGe can do large analyses, but depending on the size and complexity of the genomes, some analyses may take a while to run. However, CoGE caches the results of large analyses.
- Home Page
- OrganismView: Find genomes and getting an overview of genomic data
- Start with bacteria genomes: small and fast to process, easier to visualize comparisons.
- GenomeView: Visually inspecting genomes: MG1655 and horizontal genome transfer
- SynMap: Pair-wise whole genome comparison; syntenic dotplots
- E. coli DH10B and W3110: http://genomevolution.org/r/2vde
- What is the dotplot?
- Inversion
- Segmental duplications
- Insertions/deletions
- Saving analyses using links: "Regenerate this analysis . . ."
- Uncovering evolution: What happened at the central insertion?
- High resolution analysis with GEvo
- Extracting inserted region (SeqView)
- Extracting genomic features and annotations (FeatList)
- Adding another sequence to the region from NCBI: http://genomevolution.org/r/2ved
- Pick a sequence from around that region to explore a question that uses CoGeBlast:
- Number and location of transposons in the genome?
- Other genomes with insertion?
Analyzing larger genomes with SynMap:
- Human Chimp: http://genomevolution.org/r/2vik
- Changing chromosome order on axis: http://genomevolution.org/r/2vin
- Showing all matches versus just syntenic matches: http://genomevolution.org/r/2vis
- Human Mouse: http://genomevolution.org/r/2vip
- What are those other "dots": measuring evolutionary distance with synonymous mutation rates:
- Merging GEvo analyses; Human-Chimp-Mouse
- Human-Chimp GEvo: http://genomevolution.org/r/2vj3
- Human-Mouse GEvo: http://genomevolution.org/r/2vj1
- Reverse complementing and masking non-CDS sequences!
- Merge: http://genomevolution.org/r/2vjc
- Arabidopsis thaliana v Arabidopsis lyrata: http://genomevolution.org/r/2veh
- Axis metrics: genes versus nucleotides
- Multiple coverage and Whole genome duplications events
- Quota-align and setting coverage limits
- Synonymous mutations
- Sorghum versus Maize: http://genomevolution.org/r/2vej
- Shared versus independent Whole genome duplications
- Rice versus Brachypodium: http://genomevolution.org/r/2vii
- Nested chromosome insertions
- Other large genomes?
- Gene families
- CoGe Blast and identifying families