Genome structure
from Hi-C

Sasha Galitsyna
Skoltech
2019

Hi-C review

Hi-C: factors contributing

Physical: 

  • Scaling
  • Rabl-configuration (if present)
  • Compartments
  • TADs
  • Loops

Technical:

  • Ligation radius, restriction effectivity
  • DNA accessibility
  • PCR amplification

Scaling

Scaling

Rabl configuration

Stadler eLIFE 2017

Other high-order structures

Fission yeast:

Other high-order structures

Compartments calling

Compartments calling

Compartments calling

TADs calling

TADs calling

TADTree example:

Loops

Invariant Hi-C interactions patterns

Invariant pattern I: Intrachromosomal interaction enrichment 

Oddes 2018

Invariant Hi-C interactions patterns

Invariant pattern II: Distance-dependent interaction decay 

Oddes 2018

Invariant Hi-C interactions patterns

Invariant pattern III: Local interaction smoothness 

Oddes 2018

Invariant Hi-C interactions patterns

Oddes 2018

Invariant Hi-C interactions patterns:
low resolution

Oddes 2018

genomes scaffolding

genomes scaffolding with Hi-C

genome assembly: examples

References

  • "Three invariant Hi-C interaction patterns: applications to genome assembly"
    Oddess et al. 2018 bioRxiv 10.1101/306076 - Kaplan lab

  • "The Juicebox Assembly Tools module facilitates de novo assembly of mammalian genomes with chromosome-length scaffolds for under $1000"
    Dudchenko et al. 2018 bioRxiv 10.1101/254797 - Aiden lab

  • "De novo assembly of the Aedes aegypti genome using Hi-C yields chromosome-length scaffolds"
    Dudchenko et al. 2017 Science 10.1126/science.aal3327 - Aiden lab

  • "Hi-C as a tool for precise detection and characterisation of chromosomal rearrangements and copy number variation in human tumours"
    Harewood et al. 2017 Genome Biology 10.1186/s13059-017-1253-8 - Fraser lab

  • "Chromatin conformation analysis of primary patient tissue using a low input Hi-C method"
    Diaz et al. 2018 NatCom 10.1038/s41467-018-06961-0  - Vaquerizas lab

  • "Improved reference genome of Aedes aegypti informs arbovirus vector control"
    Matthews et al. 2018 Nature 10.1038/s41586-018-0692-z

  • "Genome organization and DNA accessibility control antigenic variation in trypanosomes"
    Muller et al. 2018 Nature 10.1038/s41586-018-0619-8

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