What Is the WGS Test?
The WGS Test (Whole Genome Sequencing) is one of the most advanced genetic testing technologies used in modern medicine. It analyzes the entire DNA sequence of an individual, covering all genetic material within the genome.
Unlike many genetic tests that examine only specific genes or small regions, the WGS Test evaluates the complete human genome, which consists of approximately 3 billion DNA base pairs. Because of its comprehensive scope, it provides one of the most detailed genetic evaluations currently available.
This advanced analysis can help:
- Identify the genetic causes of inherited diseases
- Detect carrier status for genetic conditions
- Evaluate genetic risks in consanguineous marriages
- Support embryo selection strategies during IVF treatment
Why Is the WGS Test Important?
The WGS Test provides a complete overview of an individual’s genetic structure, allowing specialists to detect genetic variants that may not be identified through standard genetic tests.
Detection of Carrier Mutations
Recessive genetic disorders occur when both parents carry the same mutated gene. The WGS Test can detect these carrier mutations and evaluate potential risks before pregnancy.
Identification of Rare Genetic Conditions
Some genetic diseases are extremely rare and cannot be detected by limited gene panels. Because the WGS Test analyzes the entire genome, it can identify rare genetic mutations across all DNA regions.
Guidance for IVF Genetic Screening
If a mutation is identified, fertility specialists may recommend IVF treatment combined with PGT-M (Preimplantation Genetic Testing for Monogenic Disorders) to select embryos without the mutation.
Investigation of Recurrent Pregnancy Loss
In some patients, recurrent miscarriage may be related to hidden genetic mutations. Comprehensive genome sequencing can help identify these underlying causes.
Importance of WGS Testing in Consanguineous Marriages
Consanguineous marriages (marriages between relatives) increase the likelihood that both partners may carry the same recessive genetic mutation.
When both parents carry the same mutation, the risk of passing the associated genetic disorder to their child increases. These conditions may lead to:
- Congenital abnormalities
- Developmental delays
- Metabolic disorders
- Neuromuscular diseases
- Rare genetic syndromes
Because the WGS Test analyzes the entire genome, it allows doctors to detect these risks with a high level of accuracy before pregnancy.
Why Is WGS Testing Performed?
The WGS Test may be recommended for several clinical purposes.
Identifying Genetic Diseases
The test can detect mutations responsible for autosomal dominant, autosomal recessive, and X-linked genetic disorders.
Genetic Risk Assessment for Couples
Genome sequencing provides a comprehensive picture of genetic carrier status, particularly in couples with shared ancestry.
Supporting IVF and PGT Treatment Planning
If genetic mutations are identified, IVF combined with PGT-M screening may be used to transfer embryos without those mutations.
Investigating Recurrent Miscarriages
In certain cases, repeated pregnancy loss may be related to rare genetic variants that can be detected through full genome sequencing.
Family History of Genetic Disorders
Couples with inherited diseases in their family history may benefit from advanced genome analysis before pregnancy.
How Is the WGS Test Performed?
The testing process typically includes several stages.
Sample Collection
A simple blood sample is taken from the patient to extract DNA.
Genome Sequencing
The entire genome is sequenced using advanced Next Generation Sequencing (NGS) technology.
Bioinformatic Analysis
Billions of DNA base pairs are analyzed using specialized bioinformatics systems and compared with international genetic databases.
Clinical Interpretation
Genetic specialists review the results and prepare a detailed report explaining potential genetic risks and recommendations.
Advantages of the WGS Test
The WGS Test offers several important advantages for genetic evaluation.
- Comprehensive analysis of the entire genome
- Identification of rare genetic variants
- Detection of carrier mutations in a single test
- Support for personalized fertility treatment planning
- Improved understanding of genetic risks before pregnancy
While Whole Exome Sequencing (WES) analyzes only about 2% of the genome, the WGS Test examines the entire genetic sequence, making it one of the most comprehensive genetic screening methods available.
Who Should Consider the WGS Test?
The WGS Test may be recommended for:
- Couples in consanguineous marriages
- Patients with recurrent miscarriages
- Couples with unexplained infertility
- Families with a history of genetic diseases
- Patients planning IVF treatment
- Couples concerned about genetic risks before pregnancy
- Pregnancies with suspected congenital anomalies
A fertility specialist or genetic counselor can determine whether genome sequencing is appropriate based on the patient’s medical history.
WGS Testing at Dogus IVF Center
At Dogus IVF Center in Cyprus, the WGS Test is performed using advanced sequencing technologies and internationally recognized laboratory standards.
The evaluation process includes:
- State-of-the-art NGS sequencing platforms
- High-precision genetic variant analysis
- Clinical interpretation by experienced genetic specialists
- Integration with PGT-M and PGT-A screening strategies when necessary
- Personalized genetic counseling for each couple
This comprehensive approach helps couples understand their genetic risks and supports safer reproductive planning.
