Use of a molecular marker affecting body length in sheep

By screening molecular markers that affect sheep body length traits through genome-wide association analysis, and utilizing the nucleotide at the 101 bp site of the nucleotide sequence shown in SEQ ID NO.2, the problem of early identification of sheep body length traits was solved, thereby improving the efficiency of sheep breeding.

CN122060874BActive Publication Date: 2026-07-10INNER MONGOLIA AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INNER MONGOLIA AGRICULTURAL UNIVERSITY
Filing Date
2026-04-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The lack of existing technologies for accurately and early identification of the genetic potential of sheep body length leads to slow progress in the genetic improvement of body length traits during the breeding process, affecting the efficiency of sheep breeding.

Method used

Through genome-wide association analysis, molecular markers affecting sheep body length traits were screened out. Genotyping was performed using the nucleotide at position 101 of the nucleotide sequence shown in SEQ ID NO.2, which is either T or C, enabling early identification and screening of body length traits.

Benefits of technology

It enables early and accurate identification and genetic assessment of sheep body length traits, significantly shortens the breeding cycle, improves the body length performance of offspring, and enhances breeding efficiency.

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Abstract

This invention belongs to the field of genetic breeding technology, specifically relating to the application of a molecular marker affecting the body length trait of sheep. The molecular marker is the nucleotide sequence shown in SEQ ID NO.2, where the nucleotide at the 101 bp site is T or C. The application refers to either (1) or (2) of the following: (1) identifying the body length of sheep; (2) increasing the body length of sheep offspring. This invention uses methods such as genome sequencing, identification of variant sites, and genome-wide association analysis to screen out a molecular marker that significantly affects the body length trait of sheep. By detecting the genotype of the molecular marker, this invention allows for genetic assessment of the body length of sheep in the early stages of growth and development. Based on the molecular marker of this invention, early and accurate identification of the body length trait of sheep can be achieved. This invention provides a reliable tool for molecular-assisted breeding of Suffolk sheep and other sheep breeds, helping to improve breeding efficiency and genetic progress.
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