scholarly journals Associations of Individual Genomic Heterozygosity, Estimated by Molecular Fingerprinting, and of Dam Major Histocompatibility Complex with Growth and Egg Production Traits in Layer Chickens

1996 ◽  
Vol 75 (12) ◽  
pp. 1463-1467 ◽  
Author(s):  
A. CAHANER ◽  
E.J. SMITH ◽  
S. SWENSON ◽  
S.J. LAMONT
Keyword(s):  
Major Histocompatibility Complex ◽  
Egg Production ◽  
Production Traits ◽  
Molecular Fingerprinting ◽  
Major Histocompatibility ◽  
Histocompatibility Complex ◽  
Layer Chickens

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 Genetic diversity at major histocompatibility complex and its effect on production and immune traits in indigenous chicken breeds of India

2020 ◽  
Vol 63 (1) ◽  
pp. 173-182
Author(s):  
Santosh Haunshi ◽  
Divya Devara ◽  
Kannaki Ramasamy ◽  
Rajkumar Ullengala ◽  
Rudra Nath Chatterjee
Keyword(s):  
Genetic Diversity ◽  
Major Histocompatibility Complex ◽  
Egg Production ◽  
Major Histocompatibility ◽  
Indigenous Chicken ◽  
Histocompatibility Complex ◽  
Antibody Titres ◽  
Chicken Breeds ◽  
Immune Traits ◽  
Mhc Alleles

Abstract. The genetic diversity at major histocompatibility complex (MHC) in indigenous chicken breeds of India (Ghagus and Nicobari) in comparison with the White Leghorn (WLH) breed was investigated by genotyping the MHC-linked LEI0258 marker. Altogether 38 alleles and 96 genotypes were observed among three breeds. The observed and effective alleles were highest in Ghagus (23, 8.3) followed by Nicobari (14, 3.2) and WLH (10 and 2.2) breeds. The size of alleles ranged from 193 to 489 bp in Ghagus, 193 to 552 bp in Nicobari and 241 to 565 bp in the WLH breed. The number of private alleles was also highest in Ghagus (18) followed by Nicobari (8) and WLH (5) breeds. The most frequent allele was 261 bp in WLH (66 %), 343 bp in Nicobari (50.4 %) and 309 bp in the Ghagus (28.15 %) breed. Observed and expected heterozygosities were highest in Ghagus (0.83, 0.88) followed by Nicobari (0.58, 0.68) and WLH (0.53, 0.54). The genetic distance (Nei) between Ghagus and Nicobari breeds (2.24) was higher as compared to that of Ghagus and WLH (1.23) and that between Nicobari and WLH breeds (0.89). Association analysis revealed significant influence of MHC alleles on body weight, egg production in Ghagus and WLH breeds and antibody titres to Newcastle disease vaccine in the Nicobari breed.

scholarly journals Associations Between Major Histocompatibility Complex Genes and Production Traits in White Leghorns

1993 ◽  
Vol 72 (6) ◽  
pp. 989-999 ◽  
Author(s):  
A. LUNDÉN ◽  
I. EDFORS-LILJA ◽  
K. JOHANSSON ◽  
L.-E. LILJEDAHL ◽  
M. SIMONSEN
Keyword(s):  
Major Histocompatibility Complex ◽  
Production Traits ◽  
Major Histocompatibility ◽  
Histocompatibility Complex ◽  
White Leghorns
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