Earticle

초록

영어

Thus far, there have been many studies focusing on meat quality improvement for Hanwoo (Korean cattle). It is considered that studies on meat quality have been actively conducted because beef consumption has changed from quantity to quality since early 1990's. Moreover, many studies on meat quality using maker assisted selection (MAS) have been conducted. However, there is a need to study quantity of meat in order to enhance the economic effect by genetic diversity and quantity of meat for Hanwoo. Therefore, in order to use a myostatin gene affecting meat quantity among quantitative genes for MAS, this study analyzed the association between genetic variation of myostatin gene in individuals of Hanwoo and carcass traits. Analysis between genotypes and individual phenotypic characteristics was performed by ANOVA using ASREML. Association analysis between these 10 SNPs and phenotypic characteristics (carcass weight, eye muscle area, backfat thickness, marbling score, yield index), and there were significant differences in 5 SNPs. As a result, there were five significant differences. Although all the SNPs did not show significant differences in each trait in this study, some SNPs showed significant differences in each trait. The diversity of myostatin gene was found in Hanwoo.

목차

ABSTRACT
 Ⅰ. 서론
 Ⅱ. 재료 및 방법
  1. 공시재료
  2. genomic DNA 추출
  3. Myostatin SNP 선발
  4. RT–PCR(Polymerase Chain Reaction
  5. 통계분석
 Ⅲ. 결과 및 고찰
  1. SNP 별 RT-PCR 결과
  2. 표현형질간 연관성 분석
  3. 표현 형질별 정규분포 분석 및 단순회귀분석
  4. Myostatin SNP과 표현형질간 연관성 분석
 Ⅳ. 요약
 사사
 Ⅴ. REFERENCES

저자

• 이준섭 [ Jun-Seop Lee | 농촌진흥청 국립축산과학원 한우연구소 ]
• 김현주 [ Hyoun-Ju Kim | 농촌진흥청 국립축산과학원 한우연구소 ]
• 김형철 [ Hyeong-Cheol Kim | 농촌진흥청 국립축산과학원 한우연구소 ]
• 양보석 [ Bo-Suk Yang | 농촌진흥청 국립축산과학원 한우연구소 ]
• 이승환 [ Seung-Hwan Lee | 충남대학교 동물자원생명과학 ]
• 이성진 [ Sung-Jin Lee | 강원대학교 동물생명과학대학 ] Corresponding author

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