Genome-wide association study on reproductive traits in Jinghai Yellow Chicken

2015 ◽  
Vol 163 ◽  
pp. 30-34 ◽  
Author(s):  
G.X. Zhang ◽  
Q.C. Fan ◽  
J.Y. Wang ◽  
T. Zhang ◽  
Q. Xue ◽  
...  
Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 732 ◽  
Author(s):  
Zhang ◽  
Chen ◽  
Ye ◽  
He ◽  
Huang ◽  
...  

In the pig industry, reproductive traits constantly influence the production efficiency. To identify markers and candidate genes underlying porcine reproductive traits, a genome-wide association study (GWAS) was performed in a Duroc pig population. In total, 1067 pigs were genotyped using single-nucleotide polymorphism (SNP) chips, and four reproductive traits, including litter size at birth (LSB), litter weight at birth (LWB), litter size at weaning (LSW), and litter weight at weaning (LWW), were examined. The results showed that 20 potential SNPs reached the level of suggestive significance and were associated with these traits of interest. Several important candidate genes, including TXN2, KCNA1, ENSSSCG00000003546, ZDHHC18, MAP2K6, BICC1, FAM135B, EPHB2, SEMA4D, ST3GAL1, KCTD3, FAM110A, TMEM132D, TBX3, and FAM110A, were identified and might compose the underlying genetic architecture of porcine reproductive traits. These findings help to understand the genetic basis of porcine reproductive traits and provide important information for molecular breeding in pigs.


2018 ◽  
Vol 209 ◽  
pp. 67-72 ◽  
Author(s):  
Md. Rasel Uzzaman ◽  
Jong-Eun Park ◽  
Kyung-Tai Lee ◽  
Eun-Seok Cho ◽  
Bong-Hwan Choi ◽  
...  

2018 ◽  
Vol 49 (2) ◽  
pp. 127-131 ◽  
Author(s):  
Y. Wang ◽  
X. Ding ◽  
Z. Tan ◽  
K. Xing ◽  
T. Yang ◽  
...  

2015 ◽  
Vol 50 (2) ◽  
pp. 175-176 ◽  
Author(s):  
W. H. Wang ◽  
J. Y. Wang ◽  
T. Zhang ◽  
Y. Wang ◽  
Y. Zhang ◽  
...  

PLoS ONE ◽  
2018 ◽  
Vol 13 (8) ◽  
pp. e0201876 ◽  
Author(s):  
André Vieira do Nascimento ◽  
Ândrea Renata da Silva Romero ◽  
Yuri Tani Utsunomiya ◽  
Adam Taiti Harth Utsunomiya ◽  
Diercles Francisco Cardoso ◽  
...  

2015 ◽  
Vol 47 (1) ◽  
Author(s):  
Raphael B. Costa ◽  
Gregório MF Camargo ◽  
Iara DPS Diaz ◽  
Natalia Irano ◽  
Marina M. Dias ◽  
...  

2015 ◽  
Vol 47 (1) ◽  
Author(s):  
Raphael B. Costa ◽  
Gregório MF Camargo ◽  
Iara DPS Diaz ◽  
Natalia Irano ◽  
Marina M. Dias ◽  
...  

2019 ◽  
Vol 31 (6) ◽  
pp. 1127 ◽  
Author(s):  
R. Abdoli ◽  
S. Z. Mirhoseini ◽  
N. Ghavi Hossein-Zadeh ◽  
P. Zamani ◽  
M. H. Ferdosi ◽  
...  

Composite reproductive traits are a combination of growth and reproductive traits. They have the advantage of being better attuned to the market drivers since producers are paid on a per kilogram basis and not on a per head basis. In this study, 124 Lori­­–Bakhtiari ewes were genotyped using the medium-density Illumina Ovine SNP50 array. A genome-wide association study was performed on estimated breeding values of four composite reproductive traits and genetic parameters were also estimated. The traits were litter mean weight at birth, litter mean weight at weaning, total litter weight at birth and total litter weight at weaning. Several suggestive and associated single nucleotide polymorphisms (SNPs) were identified. Neighbouring the top SNPs there were five genes, inhibin β E subunit (INHBE), inhibin β C subunit (INHBC), testis expressed 12 (TEX12), β-carotene oxygenase 2 (BCO2) and WD Repeat Domain 70 (WDR70) identified as possible candidate genes for composite reproductive traits of the Lori–Bakhtiari sheep. These genes are in pathways known to be relevant to fertility and growth characteristics. The results provide new information for the functional annotation of genes associated with fertility traits and add new evidence towards a consensus of quantitative trait loci associated with reproductive traits in sheep.


Author(s):  
Grzegorz Smołucha ◽  
Artur Gurgul ◽  
Igor Jasielczuk ◽  
Aldona Kawęcka ◽  
Anna Miksza-Cybulska

AbstractReproductive traits (especially litter size) are usually characterized by low heritability, and thus, phenotypic selection is often ineffective and slow. In order to improve fertility characteristics such as ovulation rate and litter size, it seems more effective to select breeding animals based on their genotype. The aim of the study was to use genome-wide association study (GWAS) in three sheep breeds to identify the genetic variants affecting the litter size in sheep. The study allowed us to identify one genome-wide significant SNP (rs402032081—located in ephrin type-A receptor 6, EPHA6) showing an association with litter size in Polish Mountain Sheep. We suggest that the EPHA6 gene can be a candidate gene for prolificacy trait in selected breeds of sheep; however, it needs further functional data for validation.


Sign in / Sign up

Export Citation Format

Share Document