I hear and I forget. I see and I remember. I do and I understand. - Confucius
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Transcript of I hear and I forget. I see and I remember. I do and I understand. - Confucius
I hear and I forget. I see and I remember.
I do and I understand. - Confucius
PCAST recommendation #2:“Advocate and provide support for replacing standard laboratory courses with discovery-based research courses.”
Bioinformatics (genomics) will help us meet this challenge.
The Genomics Education PartnershipSarah Elgin
Use comparative genomics to learn more about chromatin domains in Drosophila genomes:
- improve sequence, annotate, analyze - dot chromosomes (F; heterochromatic)- comparison region (D; euchromatic)
Our GEP research goal:
FlyBase: http://flybase.org
Reference
Status
Completed
Annotation
Sequence Improvement
New Project(motif finding)
D. biarmipes
Annotation challenge: Create gene models from evidence: sequence similarity, computational predictions, RNA-Seq, etc.
(local UCSC Browser)Improved
Sequence
Sequence Homology
Gene Predictions
RNA-Seq, TopHat, Cufflinks
Repeats
Students learn to use a UCSC genome browser, BLAST, FlyBase, Clustal, other data bases and tools.
Curriculum Question
y = axb
No box:Derive the math,
refine the algorithm
How can we help students understand the mathematics or algorithm that underlies a bioinformatics tool?
Glass box:Analyze the math,
Model the relationships
y = axb
Black box:Hide the math
Give enough math to demystify the algorithm & relate it to key biological concepts
Interactive Excel Tool for Exploring Hidden Markov Models: Exon to Intron Transition
Adjust probabilities to model specific system
Excel computes likelihood of indiv. splice site positions
Based on Eddy 2004 (Nat Biotech 22:1315–6)Anton Weisstein, Truman State University MO
• Becoming intelligent users of bioinformatics tools (understanding algorithms, key parameters; command line manipulation)
• Analysis and data mining in complex eukaryotic genomes: new questions, new tools
• Metagenomics: interesting questions, needed analytical tools
• Analyzing RNA samples, mapping to known genomes (developmental progressions, environmental responses)
• Regulatory networks, signaling, patterns of relationships
• [Training biology faculty to become bioinformatics faculty]
A bioinformatics course for biologists?
Science efficacy survey results comparing ~10 hr course (blue) and ~45 hr course (red) with summer-in-the-lab (green)
.
GEP school SURE 09 Bio
The Genomics Workflow
Public “draft” genomes
Divide into overlapping student projects(~40kb)
Sequence and assembly improvement
Collect projects, compare and verify final consensus sequence
Evidence-based gene annotation
Collect projects, compare and confirm annotations
Reassemble into high quality annotated sequence
Analyze and publish results
Sequence Improvement
Annotation
http://gep.wustl.edu
Students learn to use a UCSC genomebrowser, BLAST, FlyBase,Clustal, others.Students present findings at local meetings;GEP publishes as group.
9
• Integration of genomics into the undergraduate biology curriculum• Integration of research thinking into the academic year curriculum
• Advantages of bioinformatics / genomics:– Low laboratory costs (computers, internet connection)– No lab safety issues; open access 24/7– Large pool of publically accessible raw data– Lends itself to peer instruction
• Currently ~100 faculty partners from > 110 colleges & universities; last year ~1300 students enrolled in GEP-associated courses.
Goals:
Selected student quotes…..• The class was very intellectually challenging for me. It taught me
to think in a way that I had never thought before.
• The thing that sparked me the most was the fact that I was able to perform the BLAST searches on my own and was able to explain to my instructor what I had done.
• It was a great team-building and learning experience. It was independent work, but you were going through the same things as the other students and built camaraderie.
• I seriously think this should be the model for all biology courses.
But…more comments from GEP students
• I learned to fight through the frustration and eventually figure out the problem.
• I guess we learned about genomics through doing the tasks…. it was sort of a self-teaching class….
• Everything we gained from the class…was either found by desperately messing around on the various websites …or by talking with other students.
• I know if I could survive this class then I could survive just about anything.
Can it work with freshmen? Yes - Phage Hunters! Graham Hatfull, U Pittsburgh: bacteriophage discovery and genomics for novice scientists
Small genomes (50 – 150 kb, ~100 genes), simpler – continuous ORF.
Now in use at many institutions, start-up supported by SEA (HHMI).Bioinformatics being introduced into general freshman course at Wash U as an optional lab, 20 contact hrs plus homework.