Transcript Document

Session 2
Non-COI Candidate regions
John Taylor
Tom Bruns
Sung-Oui Suh
François Lutzoni
Dirk Redecker
Todd DeSantis
Teun Boekhout
Barbara Robbertse
Irina Druzhinina
Fungal Barcoding
John W. Taylor
University of California
Berkeley, USA
Barcoding fungi is a great idea.
http://www.barcode.it/
The potential benefits for fungi are
huge because most fungi are
microscopic and we believe that
most are unknown.
Ecology and its applications would
benefit tremendously.
Barcoding fungi is a great idea.
http://www.barcode.it/
The potential benefits for fungi are
huge because most fungi are
microscopic and we believe that
most are unknown.
Ecology and its applications would
benefit tremendously.
Barcoding fungi is a great idea.
http://www.barcode.it/
The potential benefits for fungi are
huge because most fungi are
microscopic and we believe that
most are unknown.
Ecology and its applications would
benefit tremendously.
Cytochrome Oxidase I
is not the right gene for fungal
barcoding.
From the barcoding website:
http://www.dnabarcoding.ca/primer/Primers.html
PRIMERS Overview In order to obtain barcode
sequences from such a broad spectrum of animal taxa,
researchers require an arsenal of primer sets.
Cytochrome Oxidase I
is not the right gene for fungal
barcoding.
From the barcoding website:
http://www.dnabarcoding.ca/primer/Primers.html
PRIMERS Overview In order to obtain barcode
sequences from such a broad spectrum of animal taxa,
researchers require an arsenal of primer sets.
If Cytochrome Oxidase I
requires an arsenal of primers,
how can it work for any group of
organisms?
Macrobes v. Microbes
Macrobes: Phenotype is available in
museums or herbaria, zoos or gardens, and
nature. Taxa are well sampled.
Microbes: Phenotype is available in herbaria
and culture collections but NOT in nature.
Taxa are poorly sampled.
www.livescience.com
Ward et al. (2005) amplified COI from more than 200 fish
using different combinations of four newly designed primers:
FishF1-50TCAACCAACCACAAAGACATTGGCAC30,
FishF2-50TCGACTAATCATAAAGATATCGGCAC30,
FishR1-50TAGACTTCTGGGTGGCCAAAGAATCA30,
FishR2-50ACTTCAGGGTGACCGAAGAATCAGAA30.
However, there was insufficient product from five species,
necessitating the use of an additional forward primer:
(50ATCTTTGGTGCATGAGCAGGAATAGT30)
Ward et al. (2005) amplified COI from more than 200 fish
using different combinations of four newly designed primers:
FishF1-50TCAACCAACCACAAAGACATTGGCAC30,
FishF2-50TCGACTAATCATAAAGATATCGGCAC30,
FishR1-50TAGACTTCTGGGTGGCCAAAGAATCA30,
FishR2-50ACTTCAGGGTGACCGAAGAATCAGAA30.
However, there was insufficient product from five species,
necessitating the use of an additional forward primer:
(50ATCTTTGGTGCATGAGCAGGAATAGT30)
FIVE PRIMERS FOR FISH
Figure 3
Figure 3
Figure 3
http://www.botany.utoronto.
ca/ResearchLabs/MallochLa
b/Malloch/Moulds
Seifert et al. (2007). We tested the performance of PenF1 with
both PenR1 and AspR1 in PCR amplifications using genomic
DNA isolated from ten species of the family Trichocomaceae,
PCR amplications using PenF1 and PenR1 were sporadically
successful, whereas amplications using AspR1 had a 100%
success rate.
Aspergillus and Penicillium subgenus Penicillium are closer
relatives than either is to Penicillium subgenus Biverticillium.
Seifert et al. 2007
New
Fungi
In
Tundra
Soils
Schadt et al. 2003
New
Fungi
In
Tundra
Soils
Schadt et al. 2003
New
Fungi
In
Tundra
Soils
rDNA sequences
Schadt et al. 2003
Thanks
Session 2
Non-COI Candidate regions
John Taylor
Tom Bruns
Sung-Oui Suh
François Lutzoni
Dirk Redecker
Todd DeSantis
Teun Boekhout
Barbara Robbertse
Irina Druzhinina
Barcoding Decapods (Crustacea) Costa et al.
2007
Forward primers: LCO1490 Crust F1 and
Crust F2 (Costa et al. 2007).
Reverse primer: HCO2198 (Folmer et al.
1994).