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Revision as of 12:43, 12 December 2014
, 12:43, 12 December 2014→Visualizing Ancestry
__TOC__
== Setup ==
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''If you are already logged in, you can skip this section.''
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{{SeqShopLogin}}
{{SeqShopLogin}}
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== Setup your terminal ==
Resume screen:
screen -r
== Setup ==
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''If you were sequenced, set these values:''
'''Only if your snpcalling is still running, let Mary Kate know, expand, and follow these instructions'''
export SAMPLE=Sample*
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* Detach from screen
Ctrl-a d
* Start new screen
screen
* Reset environment variables (replace SampleXX with your sample name)
export SAMPLE=SampleXX
source /net/seqshop-server/home/mktrost/seqshop/setupSS.txt
source /net/seqshop-server/home/mktrost/seqshop/setupSS.txt
* When you detach from screen and reattach, you will have multiple screen sessions
** The ancestry one will have today's date, the snpcall one will have an earlier date.
*** Mary Kate can explain how to reattach to a specific session when we get there.
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'''Instructions for everyone: Setup LASER'''
Source the LASER setup:
source /net/seqshop-server/home/chaolong/LASER-Tutorial/setup.txt
source /net/seqshop-server/home/chaolong/LASER-Tutorial/setup.txt
(SAMPLE & OUT were previously set in your screen session.)
After setting this, also do
After setting this, also do
This step takes ~1 hour for a genome sequenced at 17X.
This step takes ~1 hour for a genome sequenced at 17X.
While this is running, we will go look at other results, so exit screen:
Ctrl-a d
While that's running, let's go run the Association Analysis Practical: [[SeqShop: Genetic Association Analysis Practical, December 2014]]
=== Checking if Pileup finished ===
screen -r
'''Did everyone's finish?'''
If not, let's go to Indel: [[SeqShop:_Calling_Your_Own_Genome,_December_2014#Reviewing_Indel_Results]]
If yes, let's continue below:
=== Step 2: pileup --> seq ===
=== Step 2: pileup --> seq ===
This step will take about 5-6 minutes.
This step will take about 5-6 minutes.
$LASER/laser -g $HGDP/HGDP_938.geno -c $HGDP/HGDP_938.RefPC.coord -s $OUT/ancestry/$SAMPLE.laser.seq -K 20 -k 4 -M 0.8 -o $OUT/ancestry/$SAMPLE.HGDP &
$LASER/laser -g $HGDP/HGDP_938.geno -c $HGDP/HGDP_938.RefPC.coord -s $OUT/ancestry/$SAMPLE.HGDP.seq -K 20 -k 4 -M 0.8 -o $OUT/ancestry/$SAMPLE.HGDP &
View the results:
View the results:
evince Results_on_HGDP.pdf &
evince Results_on_HGDP.pdf &
==Interested in looking just at European populations?==
==Interested in looking just at European or East Asian or Central South Asian populations?==
=== Population information ===
8 European populations in the HGDP dataset, including 156 individuals in total.
18 East Asian populations in the HGDP dataset, including 224 individuals after excluding 5 outliers (defined as more than 5 standard deviations from mean in any of top 10 PCs, 1 removal iteration).
8 Central/South Asian populations in the HGDP dataset, including 195 individuals after excluding 5 outliers (defined as more than 5 standard deviations from mean in any of top 10 PCs, 1 removal iteration). Note that 7 out of these 8 population were collected in Pakistan and 1 was collected in China (Uygur).
[[File:HGDP Popualtions.png|thumb|center|alt=HGDP populations |300px|HGDP populations]]
=== Step 1: bam --> pileup ===
=== Step 1: bam --> pileup ===
You can skip this, you already did it.
You can skip this, you already did it.
=== Step 2: pileup --> seq ===
=== Step 2: pileup --> seq ===
You can skip this step too because you already did it.
You can skip this step too, because you already did it.
=== Estimate ancestry ===
=== Estimate ancestry ===
This step will take a few seconds.
This step will take a few seconds.
$LASER/laser -g $HGDP/HGDP.633K.euro.geno -c $HGDP/HGDP.633K.euro.RefPC.coord -s $OUT/ancestry/$SAMPLE.Euro.laser.seq -K 20 -k 4 -M 0.8 -o $OUT/ancestry/$SAMPLE.Euro.laser.1 &
For European ancestry:
$LASER/laser -g $HGDP/HGDP.633K.euro.geno -c $HGDP/HGDP.633K.euro.RefPC.coord -s $OUT/ancestry/$SAMPLE.HGDP.seq -K 20 -k 4 -M 0.8 -o $OUT/ancestry/$SAMPLE.HGDP-Euro &
For East Asian ancestry:
$LASER/laser -g $HGDP/HGDP.633K.easia.2.geno -c $HGDP/HGDP.633K.easia.2.RefPC.coord -s $OUT/ancestry/$SAMPLE.HGDP.seq -K 20 -k 4 -M 0.8 -o $OUT/ancestry/$SAMPLE.HGDP-EAsia &
For Central/South Asian ancestry:
$LASER/laser -g $HGDP/HGDP.633K.csasia.2.geno -c $HGDP/HGDP.633K.csasia.2.RefPC.coord -s $OUT/ancestry/$SAMPLE.HGDP.seq -K 20 -k 4 -M 0.8 -o $OUT/ancestry/$SAMPLE.HGDP-CSAsia &
View the results:
View the results for European ancestry:
less -S $OUT/ancestry/${SAMPLE}.Euro.laser.1.SeqPC.coord
less -S $OUT/ancestry/${SAMPLE}.HGDP-Euro.SeqPC.coord
or for East Asian ancestry
less -S $OUT/ancestry/${SAMPLE}.HGDP-EAsia.SeqPC.coord
or for Central/South Asian ancestry
less -S $OUT/ancestry/${SAMPLE}.HGDP-CSAsia.SeqPC.coord
== Visualizing Ancestry ==
== Visualizing Ancestry ==
Change to that new directory:
Change to that new directory:
Generate the plot:
Generate the plot for European ancestry:
Rscript plotHGDP.r $HGDP/HGDP.633K.euro.RefPC.coord $OUT/ancestry/${SAMPLE}.Euro.laser.1.SeqPC.coord
Rscript plotHGDP.r $HGDP/HGDP.633K.euro.RefPC.coord $OUT/ancestry/${SAMPLE}.HGDP-Euro.SeqPC.coord
or for East Asian ancestry
Rscript plotHGDP.r $HGDP/HGDP.633K.easia.2.RefPC.coord $OUT/ancestry/${SAMPLE}.HGDP-EAsia.SeqPC.coord
or for Central/South Asian ancestry
Rscript plotHGDP.r $HGDP/HGDP.633K.csasia.2.RefPC.coord $OUT/ancestry/${SAMPLE}.HGDP-CSAsia.SeqPC.coord
Take a look:
Take a look:
evince Results_on_HGDP.pdf &
evince Results_on_HGDP.pdf &
== Return to Calling your own Genome ==
Go to [[SeqShop:_Calling_Your_Own_Genome,_December_2014#Reviewing_Indel_Results]] and pick up where we left off.
