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Sheep lymphocyte antigens: a preliminary study.

P R Cullen, C Bunch, J Brownlie

Animal Blood Groups and Biochemical Genetics

|January 1, 1982

Summary

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Researchers identified 13 sheep lymphocyte antigens using antibody screening. These antigens are inherited through autosomal codominant genes at two linked locations, providing insights into sheep immunology and genetics.

Area of Science:

Immunogenetics
Veterinary Immunology
Sheep Genetics

Background:

Cytotoxic antibodies play a crucial role in immune responses and transplantation.
Understanding lymphocyte antigens is vital for animal breeding and disease resistance.

Purpose of the Study:

To identify and characterize sheep lymphocyte antigens.
To investigate the inheritance patterns of these antigens in sheep populations.

Main Methods:

Screening of 287 sheep sera for cytotoxic antibodies against sheep lymphocytes.
Selection of 44 antisera to provisionally define 13 lymphocyte antigens.
Frequency analysis of identified antigens in 305 sheep across 8 different breeds.
Family studies to confirm inheritance patterns.

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Main Results:

Provisional definition of 13 sheep lymphocyte antigens.
Demonstration of antigen frequency variation across different sheep breeds.
Confirmation that sheep lymphocyte antigen inheritance is controlled by autosomal codominant genes.
Identification of at least 2 linked loci controlling antigen inheritance.

Conclusions:

Established a panel of sheep lymphocyte antigens.
Elucidated the genetic basis of sheep lymphocyte antigen inheritance.
Provided foundational data for further research in sheep immunogenetics and breeding programs.