A porcine cyclops with normal female karyotype

Area of Science:

• Veterinary Genetics
• Developmental Biology
• Animal Science

Background:

• Cyclopia is a rare congenital disorder characterized by the failure of the prosencephalon to divide.
• While often associated with chromosomal abnormalities, the underlying causes can be complex and multifactorial.
• Understanding the genetic basis of cyclopia in different species is crucial for veterinary diagnostics and reproductive health.

Purpose of the Study:

• To perform a cytogenetic analysis of a cyclops specimen in domestic pigs (Sus scrofa domesticus).
• To determine if chromosomal abnormalities are associated with cyclopia in this porcine case.
• To investigate potential etiological factors for cyclopia in swine.

Main Methods:

• Kidney tissue was harvested from a porcine cyclops specimen.
• The tissue was cultured to obtain metaphase chromosomes.
• Karyotyping was performed to analyze the chromosome number and structure (2n=38,XX).

Main Results:

• The karyotype of the cyclops was determined to be 38,XX.
• No apparent numerical or structural chromosomal aberrations were observed.
• The chromosomal complement was consistent with that of a normal female swine.

Conclusions:

• The observed cyclopia in this porcine case is not attributable to a detectable chromosomal abnormality.
• Non-genetic factors, such as teratogenic influences during early development, are likely contributors.
• Further research is warranted to explore the etiology of cyclopia in swine, potentially focusing on environmental or maternal factors.