US 12,227,794 B2
Method for parent-of-origin disease allele detection for the diagnosis and management of genetic diseases
Peter Lansdorp, Vancouver (CA); Kasmintan Schrader, Vancouver (CA); Steven Jones, Vancouver (CA); Vincent Hanlon, Vancouver (CA); Vahid Akbari, Vancouver (CA); and Kieran O'Neill, Vancouver (CA)
Assigned to Provincial Health Services Authority, Vancouver (CA)
Filed by PROVINCIAL HEALTH SERVICES AUTHORITY, Vancouver (CA)
Filed on Nov. 22, 2023, as Appl. No. 18/518,079.
Application 18/518,079 is a continuation of application No. PCT/CA2023/050642, filed on May 10, 2023.
Claims priority of provisional application 63/340,712, filed on May 11, 2022.
Prior Publication US 2024/0102082 A1, Mar. 28, 2024
Int. Cl. C12Q 1/6809 (2018.01); C12Q 1/6883 (2018.01); G16B 20/20 (2019.01); G16B 30/10 (2019.01)
CPC C12Q 1/6809 (2013.01) [C12Q 1/6883 (2013.01); G16B 20/20 (2019.02); G16B 30/10 (2019.02); C12Q 2600/154 (2013.01); C12Q 2600/156 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of assigning a parent-of-origin to a chromosome-length haplotype, or of assigning parent-of-origin to one or more alleles contained within the chromosome-length haplotype, for a genome of a subject, the method comprising;
generating chromosome-length haplotypes for each autosomal chromosome of the genome of the subject by:
(i) conducting a first sequencing method that enables determination of long-range phase information;
(ii) conducting a second sequencing method that enables accurate determination and assignment of at least short reads of sequence to a haplotype; and
(iii) using overlapping results of the first and second sequencing methods to generate the chromosome-length haplotypes; and
(iv) determining a methylation status of at least one differentially methylated region (iDMR) associated with each one of the autosomal chromosomes; and
(v) using the determined methylation status of the at least one iDMR associated with each autosomal chromosome to assign a parent-of-origin for each one of the corresponding chromosome-length haplotypes, or to assign a parent of origin to the one or more alleles contained within the corresponding chromosome-length haplotype, based on the determined methylation status of the at least one iDMR associated with each autosomal chromosome.