Schedule

This schedule is subject to change as the semester progresses; click on the title of any posted Topic or Module to go to that web page.


Section Topics Modules Date

Introduction Course Overview Course Overview Jan 7

Context & Historical Baggage What is Microbial Diversity?
The fundamental similarity of all living things

The evolution of evolutionary thought Jan 9
Taxonomy and phylogeny
The false eukaryote/prokaryote dichotomy

Discussion session : Context & Historical Baggage Jan 11

Dr. Brown is out of town - No class Jan 14
Jan 16
Jan 18

Martin Luther King Day - No class Jan 21

Phylogenetic analysis How to do a phylogenetic analysis Step 1: Deciding on sequences for analysis Jan 23
Step 2 : Obtaining the sequence data
Step 3 : Identifying homologous residues
Alignment problem set

Discussion session : Devil's Disease & Sticker's tumor Jan 25

Step 4 : Tree-construction
Tree construction problem set
Jan 28
Step 5 : Interpreting the phylogenetic tree
Tree interpretation problem set
Example analysis : ES-2

Complications Alternative substitution models Jan 30
Alternative treeing algorithms
Bootstrapping

Discussion session : Phylogenetic Analysis problems sets Feb 1

Alternatives to ssu-rRNA Feb 4
Other methods for identification

What does this all mean? A review of "The Big Tree" Feb 6
Rooting the Universal Tree
The caveat - horizontal transfer

Discussion session : The Hot Spring of Yellowstone
The Hot Springs of Yellowstone slideshow
Feb 8

Midterm Exam #1 Feb 11

The Bacteria Primitive Thermophilic Bacteria Phylum Aquificae (Aquifex and relatives) Feb 13
Phylum Thermotogae (Thermotoga and relatives)
Other primitive thermophiles
Thermophilic ancestry of Bacteria
Life at high temperatures

Discussion session : Arsenate Bacteria? Feb 15

Green Phototrophic Bacteria Phylum Chloroflexi (Green non-sulfur Bacteria) Feb 18
Phylum Chlorobi (Green sulfur Bacteria)
Phylum Cyanobacteria (Blue-green algae)
Other Green phototrophs
Bacterial photosynthesis
Carbon fixation

Proteobacteria Class α-proteobacteria Feb 20
Class β-proteobacteria
Class γ-proteobacteria
Class δ-proteobacteria
Class ε-proteobacteria
The concept of Proteobacteria

Discussion session : The Black Death Feb 22

Gram-positive Bacteria Phylum Firmicutes (Low G+C Gram-positive Bacteria) Feb 25
Phylum Actinobacteria (high G+C Gram-positive Bacteria)
Bacterial Development
Bacterial Multicellularity

Spirochaetes & Bacteroids Phylum Spirochaetes Feb 27
Phylum Bacteroids (Sphingobacteria, or Bacteroides/Flavobacterium/Cytophaga)
Bacterial Motility

Discussion session canceled - No class Mar 1

Spring Break - No class Mar 4
Mar 6
Mar 8

Deincocci, Chlamydia & Planctomycetes Phylum Deinococci (Deinococcus/Thermus) Mar 11
Phylum Chlamydiae (Chlamydia and relatives)
Phylum Planctomycetes (Planctomyces & relatives)
Reductive evolution in parasites

Bacterial phyla with few or no cultivated species Phyla with few cultivated species Mar 13
Phyla with no cultivated species
Phylogenetic groups at all levels are dominated by uncultivated sequences
How much of the microbial world do we know about?

Discussion session : Nanobacteria: Fact or Fiction? Mar 15

Eukaryotes Unikonts Mar 18
Plantae
Chromalveolates
Rhizaria
Excavates

Viruses & Prions The origin of viruses Mar 20

Discussion session : The Prion theory - End of the controversy? Mar 22

Archaea Phylum Euryarchaea Mar 25
Phylum Nanoarchaeum

Phylum Crenarchaea Mar 27
Phylum Korarchaea
Archaea as...

Spring Holiday - No class Mar 29

Midterm Exam #2 Apr 1

Microbial Populations The identifications of uncultivable organisms Determining the phylotype of the Octopus Spring pink filaments organism Apr 3
Cultivation and isolation of the pink filaments organism, Thermocrinus ruber

Discussion session : Pelagibacter ubique : SAR11 Apr 5

Sequence-based microbial surveys

(454 sequencing)
Molecular phylogenetic analysis of bacterial symbionts of the deep-sea hydrothermal vent scaly snail Apr 8

The Human Microbiome Apr 10

Discussion session : The human microbial hand-ome Apr 12

Flourescent in situ hybridization surveys A phylogenetic FISH survey of Chloroflexi in wastewater sludge Apr 15

Molecular fingerprinting of microbial populations Denaturing Gradient Gel Electrophoresis

Different bacteria in different temperature zones of a Tibetan hot spring. Apr 17
Terminal Restriction Fragment Length Polymorphism
Realtime PCR
Changes in oral microflora after treatment for peridontal disease

Discussion session : Class microbiome project Apr 19

Linking phylotype and phenotype Stable Isotope Probing Apr 22
Identification of ciliate grazers of autotrophic Bacteria in ammonia-oxidizing activated sludge by RNA stable isotope probing

Metagenomics Apr 24
Evidence for a new type of phototrophy in the sea

Discussion session : Final exam review session Apr 26

Final Exam at 8:00AM! May  8