scholarly journals Genetic variability of six indigenous goat breeds using major histocompatibility complex-associated microsatellite markers

2011 ◽  
Vol 12 (2) ◽  
pp. 127 ◽  
Author(s):  
Patricy de Andrade Salles ◽  
Silvana C. Santos ◽  
Davide Rondina ◽  
Mathias Weller
Keyword(s):  
Major Histocompatibility Complex ◽  
Genetic Variability ◽  
Microsatellite Markers ◽  
Major Histocompatibility ◽  
Histocompatibility Complex ◽  
Indigenous Goat

scholarly journals ASSOCIATION OF MICROSATELLITE MARKERS WITH PRODUCTION TRAITS IN SANTA INÊS AND CROSSBRED SHEEP

2014 ◽  
Vol 19 (1) ◽  
Author(s):  
Cesar Daniel Petroli ◽  
Samuel Rezende Paiva ◽  
Tiago Do Prado Paim ◽  
Concepta Margaret McManus
Keyword(s):  
Major Histocompatibility Complex ◽  
Microsatellite Markers ◽  
Production Traits ◽  
Major Histocompatibility ◽  
Histocompatibility Complex ◽  
Santa Inês ◽  
Para Determinar

O objetivo deste estudo foi de associar alelos de 13 loci de microssatélites no cromossomo 20 de ovinos (Major Histocompatibility Complex - MHC) com características de desempenho e carcaça bem como resistência à parasitas  gastrointestinais em 138 ovinos Santa Inês e seus cruzamentos com Bergamasca, Texel e Ile de France. Os seguintes loci foram selecionados: BM1818, OarCP73, OarHH56, DYA, OLADRB, CP101, OMHC1, DQA2, DQA1, TFAP2A, DQBA27, Bf94_1, e INRA132.  Dados foram analisados em Cervus e SAS ® para determinar níveis de heterozygosidade e associações de marcadores com peso, carcaça e ovos por grama de fezes (OPG).  Os marcadores mostraram alta variabilidade genética entre indivíduos.  Para características de carcaça oito associações significativas (p<0.05) foram observadas, bem como associação positiva entre OPG e dois marcadores da MHC ovina.

scholarly journals Female choice and variation in the major histocompatibility complex.

Genetics ◽  
1992 ◽  
Vol 132 (2) ◽  
pp. 575-581 ◽  
Author(s):  
P W Hedrick
Keyword(s):  
Major Histocompatibility Complex ◽  
Genetic Polymorphism ◽  
Genetic Variability ◽  
Mating Type ◽  
Female Choice ◽  
Major Histocompatibility ◽  
Gametic Disequilibrium ◽  
High Genetic Variability ◽  
Female Mice ◽  
Histocompatibility Complex

Abstract The cause of the high genetic variability in the major histocompatibility complex (MHC) is not entirely clear. Recently, two reports suggest that female mice prefer to mate with males different from them at the MHC. A model of female choice appropriate for those observations is developed here. Female choice can in fact reduce the observed proportions of homozygotes, maintain genetic polymorphism, influence mating-type frequencies and generate gametic disequilibrium.

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