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NGS‐Based Assay for the Identification of Individuals Carrying Recessive Genetic Mutations in Reproductive Medicine
Author(s) -
Abulí Anna,
Boada Montserrat,
RodríguezSantiago Benjamín,
Coroleu Buenaventura,
Veiga Anna,
Armengol Lluís,
Barri Pedro N.,
PérezJurado Luis A.,
Estivill Xavier
Publication year - 2016
Publication title -
human mutation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.981
H-Index - 162
eISSN - 1098-1004
pISSN - 1059-7794
DOI - 10.1002/humu.22989
Subject(s) - biology , genetics , genetic testing , indel , sperm donation , genetic counseling , carrier testing , gene , single nucleotide polymorphism , pregnancy , sperm , genotype , prenatal diagnosis , fetus
Next‐generation sequencing (NGS) has the capacity of carrier screening in gamete donation (GD) programs. We have developed and validated an NGS carrier‐screening test ( qCarrier test) that includes 200 genes associated with 368 disorders (277 autosomal recessive and 37 X‐linked). Carrier screening is performed on oocyte donation candidates and the male partner of oocyte recipient. Carriers of X‐linked conditions are excluded from the GD program, whereas donors are chosen who do not carry mutations for the same gene/disease as the recipients. The validation phase showed a high sensitivity (>99% sensitivity) detecting all single‐nucleotide variants, 13 indels, and 25 copy‐number variants included in the validation set. A total of 1,301 individuals were analysed with the qCarrier test, including 483 candidate oocyte donors and 635 receptor couples, 105 females receiving sperm donation, and 39 couples seeking pregnancy. We identified 56% of individuals who are carriers for at least one genetic condition and 1.7% of female donors who were excluded from the program due to a carrier state of X‐linked conditions. Globally, 3% of a priori assigned donations had a high reproductive risk that could be minimized after testing. Genetic counselling at different stages is essential for helping to facilitate a successful and healthy pregnancy.