Comparative Genomics
Bi 407/507, Fall 2003
Time: Tuesdays 4:30-6:20 pm
Dates: 29 Sep - 12 Dec. 2003
Location: Room 389 Neuberger Hall
Instructor: Dr. Susan Masta
Office: M103 (inside Room 103), Science Building 1
Email: smasta@pdx.edu
Phone: 725-8505
Office Hours: Mondays 4:00 - 5:00 pm, and by appointment
Course Description: The completion of the sequencing of the human genome was announced this spring. But how do we interpret what the sequence means? This course will introduce you to the approaches and techniques used to sequence and analyze genomes. We will examine how comparing genomes within and between species is vital to understanding and interpreting genomic data. The course will combine discussion of current literature with hands-on computer analyses to familiarize you with the burgeoning field of comparative genomics.
Course Objectives: You will become familiar with:
Where to find genomic information and resources
How to find and annotate genes
How to make phylogenomic comparisons
What we have learned from comparing genomic data
The history of the Human Genome Project: who, what, when, where, and how
What we can do, can't do, and may soon be able to do, with genomic data
Assignments: There will be weekly assigned readings, that will be available via WebCT . You will need to prepare two questions or comments based on these readings in advance of each class, and we will begin our discussions by each presenting our questions. All students will be expected to participate in the classroom discussions. For one of the classes, each student will have an individual research/reading assignment they will need to summarize for the class. There will be computer-based assignments to familiarize you with some of the databases and analyses used in genomics. These will be explained and illustrated during class. Graduate students will prepare for and lead a portion of one of the classes. There will be no quizzes, tests, or final exam.
Grading: Grades will be based upon attendance, class participation, the quality of the preparation for the discussion section the student helps lead, and the computer assignments.
Syllabus:
30 September: an introduction to comparative genomics
What is "comparative genomics"?
Timeline of comparative genomics developments
Overview of syllabus, expectations
Databases for genomics resources: NCBI
Assigned readings:
Pennisi, E. 2001. The Human Genome. Science 291:1177-1180.
Roberts, L. 2001. Controversial from the start. Science 291:1182-1188.
Baltimore, D. 2001. Our genome unveiled. Nature 409:814-816.
Wade, N. 2003. Scientists say human genome is complete. The New York Times.
Computer assignment: NCBI website questions
7 October: The Human Genome Project.
Discussion of above papers:
The history of the Human Genome Project. Why, when, who and how.
The public versus the private sector
Why sequence the human genome?
Ethical and societal issues: Iceland's Genomic Database as a case study
Assigned reading: read pages 863-875, beginning with 'Hierarchical shotgun sequencing'
I. H. G. S. Consortium. 2001. Initial sequencing and analysis of the human genome. Nature 409:860-921.
14 October: Obtaining and Assembling Sequences.
Discussion of assigned reading on hierarchical shotgun sequencing
Large-scale sequencing methods: cloning and BAC library creation
Sequence quality scoring, vector screening (phred)
Sequence assembly into contigs and skeleton frameworks (phrap)
Introduction to evolutionary thinking:
Phylogenetic analyses: tree terminology and parsimony
Concept of homology
Assigned readings on genome annotation:
Wolfsberg, T. G., J. McEntyre, and G. D. Schuler. 2001. Guide to the draft human genome. Nature 409:824-826.,
Birney, E., A. Bateman, M. E. Clamp, and T. J. Hubbard. 2001. Mining the draft human genome. Nature 409:827-828.
21 October: Gene Identification and Annotation I:
Computer lab (322 Cramer Hall)
Sequence alignment: global versus local
Databases and tools for annotating sequence (FASTA, BLAST)
Modifying search strategies; searching different databases
Inferring gene function from relatedness to other genes
Finding Open Reading Frames (ORFs)
distinguishing introns from diverged exons
Computer assignment: gene annotation 1(BLAST)
28 October: Gene Identification and Annotation II:
Computer lab (322 Cramer Hall)
CLUSTALX introduction
Sequence alignment based on predicted secondary and tertiary structures
tRNA folding introduction (tRNAscan)
Mapping to known regions
Other gene finding methods
Computer assignment: gene annotation of a mitochondrial genome (BLAST, finding ORFs, tRNAscan)
Assigned reading: Saccone et al. 1999. Evolutionary genomics in Metazoa: the mitochondrial DNA as a model system. Gene 238:195-209.
4 November: Genome Comparisons I: Organelles
Phylogenetic analyses: introduction to programs
Discussion of mitochondrial genome paper
Genome size, content, and gene order
The minimal genome
Assignment: Survey of bacterial genomes
Assigned reading: Salzberg et al, 2001. Microbial genes in the human genome: lateral transfer or gene loss? Science 292: 1903-1906.
11 November: University closed for Veterans Day - No Class
18 November: Genome Comparisons II: Bacteria
Student summaries of bacterial genomes
Phylogenetic analyses to determine relationships and interpret character evolution
Class discussion of "Microbial genes in the human genome: lateral transfer or gene loss?"
Assigned reading: parts of Waterston et al. 2002. Initial sequencing and comparative analysis of the mouse genome. Nature 420:520-562.
25 November: Genome Comparisons III: Vertebrates
Vertebrate evolution based on genome comparisons
Class discussion of the mouse genome paper
Graduate student presentation: Human and chimpanzee genome comparisons
Assigned reading: Rokas, A., B. L. Williams, N. King, and S. B. Carroll. 2003. Genome-scale approaches to resolving incongruence in molecular phylogenies. Nature 425:798-804.
2 December: The Future of Comparative Genomics.
In-class assembly of a mitochondrial genome
Class discussion of "Genome-scale approaches to phylogenies".
Discussion of the future of genomics