第一號染色體微衛星型遺傳標記與經產母豬產仔性能之相關性研究

廖仁寶 黃鈺嘉 張秀鑾 賴永裕 顏念慈 吳明哲

行政院農業委員會畜產試驗所

在豬隻第一號染色體上選擇八個微衛星型遺傳標記包括SW1514、SW552、SW2185、SW1301、SW373、SW780、S0316、SW2130，此八種標記在第一號染色體連鎖圖譜約佔140cM分摩根，篩檢157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。基因型檢測結果每個遺傳標記之交替基因分布，皆有品種間的差異。以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：杜洛克母豬具 SW1514的交替基因B3(P<0.001)和SW1301的交替基因B1(P<0.01)，其總產仔數比未具有該交替基因者顯著得高。而藍瑞斯母豬具SW373交替基因B5(P<0.01)與杜洛克母豬具SW1514交替基因B3(P<0.01)，其產仔活仔數亦顯著得比未具有者高。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 PIG CHROMOSOME 1 AND THE LITTER PERFORMANCE OF PAROUS SOWS

R. B. Liaw, Y. C. Huang, H. L. Chang, Y. Y. Lai, N. T. Yen and M. C. Wu

Taiwan Livestock Research Institute, Council of Agriculture

A total of eight microsatellite markers on swine chromosome 1 (SSC1) were used to genotype 157 parous sows. These markers 1including SW1514, SW552, SW2185, SW1301, SW373, SW780, S0316 and SW2130 spanned about 140 cM on the linkage map of SSC1. Three traits including the number of total piglets, the number of piglets alive and the survival rate of piglets were analyzed. The genotyping analysis indicated that the allele frequency of every marker differed among four breeds. When we further analyzed the litter performance of sows with different alleles by the least-square method showed that the number of total piglets born from Duroc sows with B3 allele were significantly more than those without such an allele, and so did B1 allele of SW1301. For Landrace sows with B5 allele of SW373 and Duroc sows with B3 allele of SW1514, the number of alive piglets were significantly more than that without such an allele. In the same way, the trait of litter performance of different breed sows with some alleles would be inferior to those without such alleles.

Key Words: Microsatellite marker, Allele, Litter performance.