机构地区: 莆田学院环境与生命科学系
出 处: 《莆田学院学报》 2006年第5期30-34,39,共6页
摘 要: 采用CTAB—蛋白酶K法提取了48份枇杷种质的DNA,以西班牙枇杷品种Ullera为模板DNA,对枇杷属植物RAPD反应体系进行优化研究,结果表明:25μL反应体系中,Taq DNA聚合酶、Mg2+、引物、模板DNA和dNTPs等5种主要成分的适宜浓度或用量分别是:Mg2+为2.0 mmol/L,Taq DNA聚合酶为1.0 U,引物为0.25"mol/L,dNTPs为0.100—0.125 mmol/L,模板DNA为25—30 ng。利用该优化体系对48份枇杷种质进行RAPD随机扩增,经琼脂糖电泳获得了清晰的扩增图谱。 Genomic DNA was extracted from 48 germplasm of Eriobotrya by CTAB-Proteinase method. The optimal reaction of RAPD in Genus Eriobotrya was studied for E. japonica (Thunb.) Lindl. cv. Ullera, The results indicated that the optimum concentration of five important components i.e. Mg^2+, primer, Taq DNA Polymerase, dNTPs and template DNA in 25μL reaction system of RAPD were 2.0 mmol/L, 1.0 U,0.25μmol/L, 0.100-0.125 mmol/L and 25-30 ng respectively. Through above optimal PCR system, The 48 germplasm of Eriobotrya were amplified and obtained clear amplification profile.