Open AccessGenetic variants in the serum amyloid A2 ( SAA2 ) gene as a potential marker for milk production traits in Chinese Holstein cows
Author(s) -
Raza Sayed Haidar Abbas,
Liang Chengcheng,
Alshammari Ahmed Mohajja,
Aloufi Bandar H.,
Gui Linsheng,
Khan Rajwali,
Zan Linsen
Publication year - 2022
Publication title -
veterinary medicine and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 11
ISSN - 2053-1095
DOI - 10.1002/vms3.796
Subject(s) - single nucleotide polymorphism , haplotype , biology , genetics , genotype , gene , candidate gene , serum amyloid a , milk production , marker assisted selection , zoology , immunology , inflammation
Abstract Background This study was conducted to detect potential polymorphisms of the serum amyloid A2 ( SAA2 ) gene and explore their relationships with milk production traits in Chinese Holstein cows. Objectives: This study used sequencing technology conducted in 532 Chinese Holstein cows. Methods Three single nucleotide polymorphisms (SNPs) were identified within intron 1, named g.14061A>G, g.14072G>C and g.14819C>T. Eight estimated haplotypes were identified, of which three major haplotypes had a frequency of Hap3 (‐ACC‐), Hap5 (‐GCC‐) and Hap2 (‐AGT‐), with 17.9%, 12.30% and 8.10%, respectively. Results The association analysis of single markers (g.14061A>G and g.14819C>T) and combined genotypes (Hap1/5) revealed prominent effects on milk production traits in Chinese Holstein cows ( p < 0.05). Conclusions Our results suggest that the SAA2 gene is associated with economic traits in Chinese Holstein cows and may be used as candidate gene for marker‐assisted selection and management in breeding programs.