Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • vadim
    replied
    I am the developer of CRAM and can answer any questions about it.

    The code is here:
    Reference-based compression of SRA data. Contribute to vadimzalunin/crammer development by creating an account on GitHub.


    Documentation can be found here:


    We just released v0.7, which is not a long term support yet but stable enough to try it out.

    Leave a comment:


  • cjfields
    replied
    That does seem very promising.

    Leave a comment:


  • lh3
    replied
    That is great! Hope these can be done soon!

    Leave a comment:


  • maubp
    replied
    Originally posted by lh3 View Post
    Yes, cram has a great potential. It may ultimately replace BAM (if cram does not do that, there will be a binary format to achieve sooner or later). Nonetheless, cram may not replace BAM right now. It does not (at least did not) support all the tags.
    Supporting all the tags is expected in CRAM 0.7 due soon, see e.g.

    Originally posted by lh3 View Post
    I do not know the progress on compressing unmapped reads.
    I heard at a recent seminar that the CRAM team are looking at doing a mini-assembly of the unmapped reads in order to generate dummy reference sequences which can then be used for reference based compression. If I understood correctly this might be transparent to the user.
    Originally posted by lh3 View Post
    Furthermore, I am concerned with the compression model. I also think lossy compression is the way to go, but this should be done by reducing the resolution of quality, instead of by selectively dropping all the quality information.
    Also at the same seminar we were told CRAM has several modes of quality compression, one of which is simply reducing the resolution.

    Leave a comment:


  • lh3
    replied
    Yes, cram has a great potential. It may ultimately replace BAM (if cram does not do that, there will be a binary format to achieve sooner or later). Nonetheless, cram may not replace BAM right now. It does not (at least did not) support all the tags. I do not know the progress on compressing unmapped reads. Furthermore, I am concerned with the compression model. I also think lossy compression is the way to go, but this should be done by reducing the resolution of quality, instead of by selectively dropping all the quality information.

    Leave a comment:


  • maubp
    replied
    I've heard Sanger is considering it, perhaps even this year if CRAM continues to mature rapidly.

    Leave a comment:


  • ulz_peter
    started a topic Cram

    Cram

    Hi Guys,

    Anyone already thought about deploying CRAM for archiving alignment data, rather than BAM?



    Our Illumina representative told us they want to switch to that format...

Latest Articles

Collapse

  • seqadmin
    Advanced Tools Transforming the Field of Cytogenomics
    by seqadmin


    At the intersection of cytogenetics and genomics lies the exciting field of cytogenomics. It focuses on studying chromosomes at a molecular scale, involving techniques that analyze either the whole genome or particular DNA sequences to examine variations in structure and behavior at the chromosomal or subchromosomal level. By integrating cytogenetic techniques with genomic analysis, researchers can effectively investigate chromosomal abnormalities related to diseases, particularly...
    09-26-2023, 06:26 AM
  • seqadmin
    How RNA-Seq is Transforming Cancer Studies
    by seqadmin



    Cancer research has been transformed through numerous molecular techniques, with RNA sequencing (RNA-seq) playing a crucial role in understanding the complexity of the disease. Maša Ivin, Ph.D., Scientific Writer at Lexogen, and Yvonne Goepel Ph.D., Product Manager at Lexogen, remarked that “The high-throughput nature of RNA-seq allows for rapid profiling and deep exploration of the transcriptome.” They emphasized its indispensable role in cancer research, aiding in biomarker...
    09-07-2023, 11:15 PM
  • seqadmin
    Methods for Investigating the Transcriptome
    by seqadmin




    Ribonucleic acid (RNA) represents a range of diverse molecules that play a crucial role in many cellular processes. From serving as a protein template to regulating genes, the complex processes involving RNA make it a focal point of study for many scientists. This article will spotlight various methods scientists have developed to investigate different RNA subtypes and the broader transcriptome.

    Whole Transcriptome RNA-seq
    Whole transcriptome sequencing...
    08-31-2023, 11:07 AM

ad_right_rmr

Collapse

News

Collapse

Topics Statistics Last Post
Started by seqadmin, 09-27-2023, 06:57 AM
0 responses
11 views
0 likes
Last Post seqadmin  
Started by seqadmin, 09-26-2023, 07:53 AM
0 responses
13 views
0 likes
Last Post seqadmin  
Started by seqadmin, 09-25-2023, 07:42 AM
0 responses
15 views
0 likes
Last Post seqadmin  
Started by seqadmin, 09-22-2023, 09:05 AM
0 responses
45 views
0 likes
Last Post seqadmin  
Working...
X