第三十二卷(2003)
豬隻第六號染色體微衛星型遺傳標記與經產母豬產仔性能相關性研究
廖仁寶 賴永裕 吳明哲 黃鈺嘉 張秀鑾
行政院農業委員會畜產試驗所
在豬隻第六號染色體上平均選擇十個微衛星型遺傳標記，此十種標記在第六號染色體連鎖圖譜約佔166分摩根（cM），用以篩檢242頭種母豬DNA基因型。三種產仔性狀包括總產仔數、活仔數及仔豬存活率被分析。基因型檢測結果顯示每個遺傳標記之交替基因分布，皆有品種間差異。以一般線性模式和最小平方法分析母豬個別遺傳標記交替基因與其產仔性能之結果顯示：一些標記交替基因與三個品種母豬的產仔性能極顯著相關並具有正效應。例如S0099-B7與SW1881-B15對藍瑞斯母豬具有正效應，同時，SW1129-B1對約克夏母豬和SW2406-B1、SW1881-B6及 S0099-B5對杜洛克母豬具有正效應。同樣地，不同品種母豬具有某些交替基因，其產仔性能則會比未具有該交替基因者差。
關鍵語：微衛星型標記、交替基因、產仔性能。
ASSOCIATION STUDY BETWEEN MICROSATELLITE MARKERS ON SWINE
CHROMOSOME 6 AND THE LITTER PERFORMANCE OF PAROUS SOWS
R. B. Liaw, Y. Y. Lai, M. C. Wu, Y. C. Huang and H. L. Chang
Livestock Research Institute, Council of Agriculture, Executive Yuan
A total of ten microsatellite markers averagely spread on swine chromosome 6 (SSC6) were used to genotype 242 parous sows, including Landrace, Yorkshire, Durco and Berkshire breeds. These markers spanned about 166 cM on the linkage map of SSC6. Three traits including litter size at birth and born alive as well as the corresponding survivability of piglets were considered in the study. Result indicated that there was significant breed effects existed in the distribution of allele frequency for all markers analyzed. The general linear model via least-squared method was further applied to study the relationship between litter performances described above and the presence of individual allele for parous sows in Landrace, Yorkshire and Duroc breeds. Both positive and negative effects of alleles on sows’ litter performances were observed. For example, the marker-allele groups (S0099-B7and SW1881-B15), (SW1129-B1), and (W2406-B1, SW1881-B6 and S0099-B5) were beneficial for Landrace, Yorkshire and Duroc sows, respectively. However, alleles with inferior effects on sows’ litter performances were also found in this study.
Key Words: Microsatellite marker, Allele, Litter performance.
  
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