Related Experiment Video
Updated: Jun 26, 2025

Slide Preparation Method to Preserve Three-dimensional Chromatin Architecture of Testicular Germ Cells
Published on: January 10, 2014
Conserved genes regulating human sex differentiation, gametogenesis and fertilization
Khalid A Fakhro1,2,3, Johnny Awwad4,5,6, Suma Garibova1
1Research Branch, Sidra Medicine, Doha, Qatar.
Understanding the functional genome in mice and humans reveals conserved reproductive biology mechanisms. This research identifies genes causing infertility, crucial for reproductive health and genetic disorder research.
Area of Science:
- Reproductive biology and genetics
- Genomics and bioinformatics
- Comparative genomics
Background:
- Infertility affects couples' ability to achieve healthy pregnancies.
- Functional genomics in mice and humans elucidates conserved reproductive mechanisms.
- Monogenic fertility disorders have complex genetic etiologies.
Purpose of the Study:
- To identify and characterize genes regulating conserved reproductive functions.
- To investigate genes with comparable fertility phenotypes in rodents and humans.
- To highlight novel genetic causes of infertility and associated model systems.
Main Methods:
- Comparative analysis of functional genomes in mice and humans.
- Next-generation sequencing and CRISPR/Cas-mediated genome editing.
- Functional characterization of loss-of-function mutations in animal models.
Main Results:
- Established genes regulating conserved reproductive processes (sex determination, gametogenesis, fertilization) identified.
- Shared fertility phenotypes observed in rodents and humans for specific gene deletions.
- New model systems and insights into human consanguineous populations for novel infertility gene discovery.
Conclusions:
- Conserved genes play critical roles in fundamental reproductive processes across species.
- Animal models are essential for understanding gene function in human reproductive tissues.
- Studying consanguineous populations aids in discovering novel monogenic causes of infertility.
Related Concept Videos
The Y Chromosome Determines Maleness
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size....
The Ratio of X Chromosome to Autosomes
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
X and Y Chromosomes
The germline cells such as egg and sperm cells carry only half the number of chromosomes, i.e., 22 autosomes and one sex chromosome. All eggs have an X chromosome, while sperm cells can carry an X or...
Dosage Compensation
In addition to sexual development, the X chromosome has genes involved in autosomal functions such as brain development and the immune system. Therefore, males and females with distinct numbers of X chromosomes will...
Development of the Sexual Organs in the Embryo and Fetus
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the...
Multi-species Conserved Sequences
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...

