China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (8): 3313-3324.doi: 10.16431/j.cnki.1671-7236.2023.08.029

• Preventive Veterinary Medicine • Previous Articles    

Advances on Expression Profile and Diversity Mechanisms of Immunoglobulins in Herbivore

LEI Yichen1, WANG Ziteng1, JIANG Junyi1, WANG Shuhui1, SUN Xiuzhu2   

  1. 1. College of Animal Sciences and Technology, Northwest A&F University, Yangling 712100, China;
    2. College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
  • Received:2023-02-13 Published:2023-07-27

Abstract: The research on disease resistance breeding of herbivores is shifting from traditional breeding to molecular level.The antibodies in the immune system of herbivores have a very unique structure and diversity generation mechanism,and the rich antibody library is an important basis for the formation of disease resistance of herbivores.Antibody is composed of immunoglobulin,which has heavy chain and light chain,and the structure and diversity mechanism of immunoglobulin are different among herbivores.Although the number of immunoglobulin genes in herbivores is limited,the diverse mechanisms in various forms contribute to the formation of rich antibody libraries,which further enhance the immune capacity of animals.At present,the case fatality rate of herbivores in farms is relatively high,and the improvement of their immune levels is urgent.Therefore,it is very important to study the structure and diversity mechanism of their immunoglobulin.The author introduces the basic structure and different types of immunoglobulin,and briefly describe the gene structure and expression diversity mechanism of immunoglobulin in four herbivores:Cattle,sheep,rabbit and camel,in order to provide relevant theoretical basis and research ideas for the breeding of disease resistance.

Key words: herbivore; immunoglobulin; expression profile; expression mechanism; nano antibodies

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