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A method and application for evaluating bull sperm motility based on fbxw11 methylation
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A technology of sperm motility and methylation, applied in the field of livestock molecular genetic biology, can solve problems such as technology application, and achieve the effect of improving the quality of offspring
Active Publication Date: 2022-03-04
DAIRY CATTLE RES CENT SHANDONG ACADEMY OF AGRI SCI +1
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[0004] At present, the genes and markers related to semen quality have been identified from the level of genetics. The related research is still in the early stage, and no mature technology has been applied to production.
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Embodiment 1
[0049] In this embodiment, the detection method for the methylation site of the FBXW11 gene is described, and the method includes:
[0050] S1. Collection and storage of semen samples;
[0051] S2. DNA extraction and concentration determination;
[0054] S5. Alignment and identification of methylation sites.
[0055] Wherein, in step S1, the specific method includes:
[0056] S1.1 Collect the semen of the bull to be tested, record the corresponding semen quality parameters, and number the semen samples according to the production records;
[0057] S1.2 Collect the fresh semen of each bull and immediately put it into liquid nitrogen for storage.
[0058] In step S2, the method specifically includes:
[0060] S2.2 Identify the concentration and purity of the genomic ...
Embodiment 2
[0088] The semen samples of 9 full-sib paired bulls were grouped and analyzed, and the experimental groups were determined according to the sperm motility. The details are as follows: 9 Chinese Holstein bulls have complete semen quality production records. The frequency of bull semen collection is 1 week / 1 time, and the data records include: semen volume, sperm motility, sperm density, and deformity rate. According to the national standard "GB 4143-2008 Bovine Frozen Semen", the samples were divided into two groups: high sperm motility group (≥65%) and low sperm motility group (<60%), as shown in Table 2, where H1-H4 are high The vitality group, L1-L5 is the low vitality group.
[0089] Table 2 Production records of semen quality of 9 breeding bulls
[0090]
[0091]
[0092] The sequencing results of the above nine groups of semen samples analyzed by fluorescent real-time quantitative PCR technology showed that there were differences in the expression of FBXW11 in the...
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Abstract
The disclosure belongs to the technical field of livestockmolecular genetics, and in particular relates to a method and application for evaluating bull spermmotility based on FBXW11 methylation. Through high-throughput sequencing of the bull sementranscriptome, this disclosure provides the FBXW11 gene and 11 methylation sites that affect bull spermmotility, and develops a high-low methylation site that can be used to evaluate bull spermmotility through functional annotation and data integration analysis Bisulfite sequencing PCR detection method for several key methylation sites was established, which can be used to evaluate the sperm motility of breeding bulls. By adopting the technical scheme of the present disclosure, by analyzing the differences in geneDNA methylation, screening individuals or semen samples with ideal traits, breeding bulls with high fecundity and semen with high sperm motility, so as to improve the quality of breeding bulls and semen. The reproductive efficiency of cows is increased to achieve the purpose of increasing economic benefits.
Description
technical field [0001] The disclosure belongs to the field of livestock molecular genetic biology technology, and specifically relates to a method for evaluating the motility of bull sperm by detecting the methylation rate of 11 sites in the FBXW11 gene sequence and the application of corresponding reagents and primers in the preparation of kits . Background technique [0002] The information disclosed in this Background section is only intended to increase the understanding of the general background of the disclosure, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes prior art that is already known to those skilled in the art. [0003] Optimizing reproductive efficiency is an important way to improve the production efficiency and economic benefits of dairy cows. Artificial insemination technology is the only breeding technology that has been widely and successfully applied in the dairy industry so far, and ha...
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