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Zhu L, Shen S, Pan C, Lan X, Li J. Bovine FRAS1: mRNA Expression Profile, Genetic Variations, and Significant Correlations with Ovarian Morphological Traits, Mature Follicle, and Corpus Luteum. Animals (Basel) 2024; 14:597. [PMID: 38396565 PMCID: PMC10886075 DOI: 10.3390/ani14040597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/29/2024] [Accepted: 02/03/2024] [Indexed: 02/25/2024] Open
Abstract
The amelioration of bovine fertility caused by a multi-factorial problem has always been a hot topic, among which the detection of available target genes is the most crucial. It was hypothesized that the Fraser extracellular matrix complex subunit 1 (FRAS1) gene detected by GWAS is involved in physiological activities such as ovarian development. Herein, unilateral ovaries from 2111 cows were used to examine the mRNA expression profile and polymorphisms of bovine FRAS1 and their associations with fertility-related characteristics. Firstly, it was confirmed that FRAS1 gene transcripts are expressed in various bovine tissues. Then, among five potential insertion-deletion (indel) loci, the 20 bp (named P3-D20-bp) and 15 bp (P4-D15-bp) deletion mutations were confirmed to be polymorphic with linkage equilibrium. Secondly, the P3-D20-bp polymorphism was significantly associated with ovarian weight and corpus luteum diameter in the metaestrus phase and ovarian length in the dioestrum stage. Additionally, both ovarian length and mature follicle diameter in metaestrus are significantly correlated with different genotypes of P4-D15-bp. Thirdly, the transcriptional expression of the FRAS1 gene in groups with a minimum value of ovarian weight or volume was significantly higher than the expression in groups with a maximum value. Instead of that, the more corpus luteum and mature follicles there are, the higher the transcription expression of the FRAS1 gene is. Furthermore, FRAS1 expression in cows with a heterozygous genotype (ID) of P3-D20-bp was significantly higher than others. Eventually, P3-D20-bp deletion could disturb the binding efficiency of WT1-I and Sox2 to FRAS1 sequence according to binding prediction, indicating that mutation may affect gene expression and traits by influencing the binding of transcription factors. Overall, the polymorphisms of P3-D20-bp and P4-D15-bp of the bovine FRAS1 gene significantly correlated to follicle or ovarian traits that could be applied in optimizing female fertility in cow MAS breeding programs.
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Affiliation(s)
| | | | | | - Xianyong Lan
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China; (L.Z.); (S.S.); (C.P.)
| | - Jie Li
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China; (L.Z.); (S.S.); (C.P.)
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Liu H, Zhai J, Wu H, Wang J, Zhang S, Li J, Niu Z, Shen C, Zhang K, Liu Z, Jiang F, Song E, Sun X, Wang Y, Lan X. Diversity of Mitochondrial DNA Haplogroups and Their Association with Bovine Antral Follicle Count. Animals (Basel) 2022; 12:ani12182350. [PMID: 36139210 PMCID: PMC9495067 DOI: 10.3390/ani12182350] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/30/2022] [Accepted: 09/05/2022] [Indexed: 12/02/2022] Open
Abstract
Maternal origins based on the bovine mitochondrial D-loop region are proven to have two main origins: Bos taurus and Bos indicus. To examine the association between the maternal origins of bovine and reproductive traits, the complete mitochondrial D-loop region sequences from 501 Chinese Holstein cows and 94 individuals of other breeds were analyzed. Based on the results obtained from the haplotype analysis, 260 SNPs (single nucleotide polymorphism), 32 indels (insertion/deletion), and 219 haplotypes were identified. Moreover, the nucleotide diversity (π) and haplotype diversity (Hd) were 0.024 ± 0.001 and 0.9794 ± 0.003, respectively, indicating the abundance of genetic resources in Chinese Holstein cows. The results of the median-joining network analysis showed two haplogroups (HG, including HG1 and HG2) that diverged in genetic distance. Furthermore, the two haplogroups were significantly (p < 0.05) correlated with the antral follicle (diameter ≥ 8 mm) count, and HG1 individuals had more antral follicles than HG2 individuals, suggesting that these different genetic variants between HG1 and HG2 correlate with reproductive traits. The construction of a neighbor-joining phylogenetic tree and principal component analysis also revealed two main clades (HG1 and HG2) with different maternal origins: Bos indicus and Bos taurus, respectively. Therefore, HG1 originating from the maternal ancestors of Bos indicus may have a greater reproductive performance, and potential genetic variants discovered may promote the breeding process in the cattle industry.
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Affiliation(s)
- Hongfei Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Junjun Zhai
- College of Life Science, Yulin University, Yulin 719000, China
| | - Hui Wu
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Jingyi Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Shaowei Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Jie Li
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Zhihan Niu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Chenglong Shen
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Kaijuan Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Zhengqing Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Fugui Jiang
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250000, China
| | - Enliang Song
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250000, China
| | - Xiuzhu Sun
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
| | - Yongsheng Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
- Correspondence: (Y.W.); (X.L.)
| | - Xianyong Lan
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
- Correspondence: (Y.W.); (X.L.)
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