CHEN Li-li,WANG Ming-jiu,HE Li-jun,et al.Optimization for ISSR Reaction System of Wild Soybean and Its Utilization in Distant Hybrid Identification[J].Soybean Science,2013,32(04):459-466.[doi:10.11861/j.issn.1000-9841.2013.04.0459]
野生大豆ISSR体系的优化及其在远缘杂交后代鉴定中的利用
- Title:
- Optimization for ISSR Reaction System of Wild Soybean and Its Utilization in Distant Hybrid Identification
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- ??? ?以内蒙古野生大豆为材料,运用5因素5水平正交试验设计对ISSRPCR反应体系中DNA模板、Taq酶、引物、dNTPs和Mg2+用量进行优化试验,之后利用优化后的ISSR-PCR体系对内蒙古野生大豆及其与栽培大豆的杂交后代进行遗传关系研究。正交试验结果表明,各因素对野生大豆ISSR-PCR反应影响大小依次为Taq酶>Mg2+>引物>模板DNA=dNTPs,最佳反应体系为模板DNA 50 ng、Taq酶0.5 U、引物(10 μmol·L-1)1.0 μL、Mg2+(25 mmol·L-1)2.0 μL及dNTPs(25 mmol·L-1 each)3.0 μL,2 μL 10×PCR buffer、ddH2O补足至20 μL。以10个引物对供试材料进行扩增,共得到条带109个,多态性百分率为60.23%,其中引物S23可以将所有供试材料进行区分。基于ISSR标记的聚类分析将13个供试材料划分为3类,S001、S002、2、5、8-1和8-4为第一类,29、SF、NY、ZS、0004和PZ为第二类,Y为第三类。
- Abstract:
- ?Genomic DNA of Glycine soja was tested as the template,optimization experiments on some important parameters affecting ISSR-PCR amplification were conducted to establish an optimum system suitable for ISSRPCR of hybrids of Glycine soja×Glycine max.Orthogonal design was used to optimize ISSR amplification system of the hybrids with five factors(including DNA template,Taq polymerase,primer,dNTP and Mg2+)at five levels,respectively.Then using the best system to study the genetic relationship among the lines.According to the results of orthogonal test,the order of factors affecting the ISSRPCR reaction of Glycine soja was:Taq polymerase>Mg2+)>primer>DNA template=dNTPs.A suitable ISSRPCR reaction system was established,its total volume was 20 μL,containing 50 ng DNA template,0.5 U Taq polymerase,1.0 μL primer(10 μmol·L-1),3.0 μL dNTPs(25 mmol·L-1 each),2.0 μL Mg2+(25 mmol·L-1) and 2 μL 10×PCR buffer.A total of 109 loci were amplified with 10 primers,the polymorphic loci percentage was 60.23%,the primer S23 could distinguish all the tested materials.All the tested materials were divided into three groups using cluster analysis.S001,S002,2,5,8-1 and 8-4 were divided into the first group,29,SF,NY,ZS,0004 and PZ were divided into the second group,Y was the third group.
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备注/Memo
?基金项目内蒙古应用技术研究与开发项目(20091402);内蒙古自然科学基金(2010MS0511)。