CAJ | 학술논문

为定位影响猪背最长肌和半膜肌硬实度的数量性状基因座(QTL),本研究测定了白色杜洛克×二花脸资源家系中490头F_2代猪的背最长肌和半膜肌硬实度,检测了3代个体在19条染色体上194个微卫星的基因型,并据此进行了QTL定位分析.共检测到9个QTLs,包括影响背最长肌硬实度的4个QTLs,分别位于SSC1、SSC2、SSC7和SSC10,其中SSC1和SSC7的QTLs达到1%基因组显著水平;影响半膜肌硬实度的5个QTLs分别位于SSC1、SSC7、SSC10、SSC12和SSC14,其中SSC7和SSC14的QTLs分别达到5%和1%基因组显著水平.
위정위영향저배최장기화반막기경실도적수량성상기인좌(QTL),본연구측정료백색두락극×이화검자원가계중490두F_2대저적배최장기화반막기경실도,검측료3대개체재19조염색체상194개미위성적기인형,병거차진행료QTL정위분석.공검측도9개QTLs,포괄영향배최장기경실도적4개QTLs,분별위우SSC1、SSC2、SSC7화SSC10,기중SSC1화SSC7적QTLs체도1%기인조현저수평;영향반막기경실도적5개QTLs분별위우SSC1、SSC7、SSC10、SSC12화SSC14,기중SSC7화SSC14적QTLs분별체도5%화1%기인조현저수평.
To identify quantitative trait loci(QTLs)for firmness of M. Longissimus dorsi (LD) and M. Semimembranous (SM) in pigs, the related traits were measured in 490 F_2 animals from a White Duroc×Erhualian resource population. A whole genome scan was performed with 194 microsatellites on 19 porcine chromosomes, and the QTL analysis was performed based on a least-square regression method. A total of 9 QTLs were identified,including 4 QTLs for firmness of LD on SSC1, SSC2, SSC7 and SSC10, those on SSC1 and SSC7 reached the 1% genome-wide significant level. Five QTLs for firmness of SM were detected on SSC1, SSC7, SSC10, SSC12 and SSC14, the QTLs on SSC7 and SSC14 showed 5% and 1% genome-wide significant effects respectively.