猪β防御素-1基因乳腺特异性表达载体的构建
Journal of Yangzhou University(Agricultural and Life Science Edition)（2013）
Abstract
为构建标记基因可去除的β防御素-1(pBD-1)基因乳腺特异性表达载体,利用RT-PCR方法从猪脾脏中克隆获得pBD-1基因,再插入乳腺特异性表达骨架载体pBC1-neo中;经PCR、酶切电泳以及测序鉴定,确认成功构建出乳腺特异性表达pBD-1的载体。进一步将上述功能片段亚克隆至能将标记基因全部去除的骨架载体MCS-3s-loxP-GFP中,成功构建了一种筛选标记可全部去除的乳腺特异性3s-loxP-GFP-pBC1-pBD1转基因载体。该载体为研究pBD-1蛋白的抗菌活性、抗菌机制,以及创制乳腺高效表达pBD-1的转基因猪育种新材料和通过哺乳以提高新生仔猪抗病力奠定了基础。
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Key words
transgenic animal,marker-free,breeding for disease resistance,β-defensin 1,mammary gland bioreactor,pig
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