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Title: Methylation variations in Zea

Collaborative Workflow

Jinliang: I suggest we following this workflow for the project. Basically, you need to:

  • Fork the repo
  • Clone to your own server
  • Do what ever you want in your forked repo, like add, commit, push without worry about the conflict issues
  • Send pull request to the master repo RILAB/GBSMethylation when you want to share your progress
  • If no conflict, we can just merge it. Otherwise, some body have to fix the conflicts
  • Do not forget to merge from the updated RILAB master repo to your own fork
  • Suggestion welcomed

Brain storm

The md files are located in the folder example_ideaKC/

Data:

  1. Bisulfite sequencing of 20 teosinte plants
    • Whole genome sequencing (~20X) and WGBS (~10-15X) on each
    • GBS on ~100 progenies from each plant, all 100 phenotyped for multiple traits
    • should be able to impute whole genome for progeny
    • plants are from Palmar Chico. For more info on this population, see e.g. our paper on fine-scale genetic stcuture
  2. Bisulfite sequecing of ~20 addditional maize/teosinte
    • TIL1 and TIL11 (unsure about access permission)
    • ~20 maize lines, including Oh43, Mo17, W22, and a diverse set of inbreds
  3. Bob Schmitz mentioned possibility (informally) to sequence more
    • It would be interesting to see the m6A methylome in maize and teosinte.

Key points

  1. Identification of methylation variation in Zea
  2. Correlation with TE
    - Is there a TE map? DB of TE annotation is here
    • MC Stitzer re-annotation of TEs in maize genome
  3. Whether selection sweeps associated with differential methylation patterns: see new Tajima's D-like statistic
  4. Methylation and fitness?
  5. Mapping the genetic control of methylation variation?
    • needs methylation data in offspring, which we don't have

See also recent example of WGBS in natural pops here.

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