+ All Categories
Home > Education > Viral biodiversity in rodents

Viral biodiversity in rodents

Date post: 09-May-2015
Category:
Upload: nacho-caballero
View: 504 times
Download: 2 times
Share this document with a friend
Description:
I was invited to give a short presentation about the tools that I use for my research in Cayenne, French Guiana (sickle, velvet, digital normalization (khmer), krona, awk and others).
15
nacho caballero pasteur cayenne Does human perturbation affect the viral biodiversity of rodents?
Transcript
Page 1: Viral biodiversity in rodents

nacho caballero pasteur cayenne

Does human perturbation affect the viral biodiversity of rodents?

Page 2: Viral biodiversity in rodents

Collect biological samples

Page 3: Viral biodiversity in rodents
Page 4: Viral biodiversity in rodents

Isolate the viruses

Page 5: Viral biodiversity in rodents

Sequence viral cDNA

Page 6: Viral biodiversity in rodents

FastQC

Analyze read quality

Page 7: Viral biodiversity in rodents

sickle - github.com/najoshi/sickle

Trim low-quality base pairs

Page 8: Viral biodiversity in rodents

k

Split reads into k-mers

Page 9: Viral biodiversity in rodents

Remove redundant reads

0coverage

10

number of nucleotides

with that coverage

100

Page 10: Viral biodiversity in rodents

Remove redundant reads

coverage0 10 100

digital normalization (khmer)number of

nucleotides with that coverage

Page 11: Viral biodiversity in rodents

Assemble reads into contigs

velvet - www.ebi.ac.uk/~zerbino/velvet/

Page 12: Viral biodiversity in rodents

Align contigs to known sequences

blastn - blastx - tblastx

NCBI

viprbrc.orgbit.ly/vipr_download

Page 13: Viral biodiversity in rodents

Classify alignments by taxonomy

krona

Page 14: Viral biodiversity in rodents

Small tools that do one thing well

awk sed join sort grep cut

Powerful file manager

zsh (globbing, renaming)

Statistics and data reshaping

R

Page 15: Viral biodiversity in rodents

Does human perturbation affect the viral biodiversity of rodents?

[email protected]


Recommended