C‐type lysozyme gene haplotypes in Rhode Island Red layer chickens are associated with hatchability and survival

Two Novel Rare Strongly Linked Missense SNPs (P27R and A85G) Within the GDF9 Gene Were Significantly Associated With Litter Size in Shaanbei White Cashmere (SBWC) Goats

“…However, no significant association has been noted in Wendeng dairy, Liaoning cashmere, Beijing native, Boer, and Lubei goat breeds ( 23 ), which was consistent with the findings of this study. This may be due to a breed-specific effect or some degree of linkage between L61L and other SNP loci ( 22 ). Furthermore, two novel SNP loci, P27R and A85G, were detected to have low mutation frequencies and be strongly linked.…”

“…Furthermore, there were some controversial and promising SNPs that had different impacts in different goat breeds ( 13 – 16 ). For instance, three missense mutations, A240V ( 17 ), Q320P ( 18 – 20 ), and V397I ( 21 , 22 ), and three synonymous mutations, L61L ( 23 ), N121N ( 24 ), and L141L ( 25 , 26 ), were found to have high mutant frequencies and be significantly associated with litter size in different breeds. However, due to breed-specific effects, several of the above results were not consistent.…”

“…However, due to breed-specific effects, several of the above results were not consistent. For instance, in Shaanbei white cashmere (SBWC), Lubei White, Jining Gray, Inner Mongolia cashmere, and Laiwu black goat breeds, the G allele is the major allele in V397I ( 22 , 23 , 26 ), but among the Xinong Saanen dairy goat, Big foot black goat, Guanzhong dairy goat, Jintang black goat, and Yimeng black goat, the A allele is associated with larger litter sizes ( 27 , 28 ). However, almost all the abovementioned studies focused on a single SNP locus and neglected the fact that quantitative traits are controlled by multiple loci.…”

The relationship between lysozyme gene polymorphism and quality changes during the storage of eggs derived from 2 commercial strains of Japanese quail

“…Studies conducted on chickens have also confirmed the influence of specific genotypes on various utility traits, such as body weight of chicks ( Hou et al, 2010 ). Yan et al (2016) demonstrated a significant effect of lysozyme gene polymorphisms in Rhode Island Red chickens on hatchability, chick survival, and body weight at 18 wk of age. Considering the role of lysozyme gene polymorphism in shaping the biological value of eggs and the function of the protein itself in stabilizing the structure of the thick albumen, it is reasonable to assume that it may also influence the changes in egg stability during storage.…”