I am trying to use some 10X linked reads to improve the contig assembly of a _de _novo genome completed with oxford nanopore long reads. I first aligned the 10X reads with longranger and then continued from there.
Try try-out file had this:
2751 409880285
Numbers of contigs: 2750 2751
Numbers of contigs are difference, please check reference assembly! 2750 2751
While not entirely sure what this meant, I did some digging and I noticed that one scaffold had 0 10-X reads aligning to it. Below is the summary of reads aligned per contig and the contig lacking reads.
I also noticed that the contig itself is on the shorter side.
Together, I have the following questions:
1) Could the lack of alignment to a contig be responsible for this error?
2) should there be a contig length cutoff in the inputted assembly?
3) If this error is coming elsewhere, do you happen to know the source?
Hey!
Thank you for your great tool.
I am trying to use some 10X linked reads to improve the contig assembly of a _de _novo genome completed with oxford nanopore long reads. I first aligned the 10X reads with longranger and then continued from there.
Command:
/hpf/tools/centos7/Scaff10X/4.1/src/scaff10x -nodes 25 -bam /hpf/largeprojects/mdwilson/dustin/new_genome/phase_link/SUB_2626M1/outs/possorted_bam.bam genome.fa male_output.fasta
The "genome.fa" is the genome fasta file produced in the "refdata-assembly/fasta/" file made from
longranger mkref
.The error specifically was:
Error running command: /hpf/tools/centos7/Scaff10X/4.1/src/scaff-bin/scaff_bwa-barcode tarseq.tag align0.dat align.dat > try.out
Try try-out file had this: 2751 409880285 Numbers of contigs: 2750 2751 Numbers of contigs are difference, please check reference assembly! 2750 2751
While not entirely sure what this meant, I did some digging and I noticed that one scaffold had 0 10-X reads aligning to it. Below is the summary of reads aligned per contig and the contig lacking reads.![image](https://user-images.githubusercontent.com/56414662/115102013-753d9880-9f16-11eb-98cb-a86bc5e55429.png)
I also noticed that the contig itself is on the shorter side.
Together, I have the following questions: 1) Could the lack of alignment to a contig be responsible for this error? 2) should there be a contig length cutoff in the inputted assembly? 3) If this error is coming elsewhere, do you happen to know the source?
Thanks so much! Dustin