LU Shuang-yong,HANG Ying-peng,TENG Wei-li,et al.Molecular Markers Associated with Soybean Mosaic Virus Resistance and Phytophthora Root Rot Tolerance in Soybean[J].Soybean Science,2008,27(05):746-750.[doi:10.11861/j.issn.1000-9841.2008.05.0746]
大豆抗花叶病毒及耐疫霉根腐病的SSR标记分析
- Title:
- Molecular Markers Associated with Soybean Mosaic Virus Resistance and Phytophthora Root Rot Tolerance in Soybean
- 文章编号:
- 1000-9841(2008)05-0746-05
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 抗大豆花叶病毒而感大豆疫霉根腐病亲本东农93-046与感大豆花叶病毒耐大豆疫霉根腐病亲本Conrad及其杂交所得的160个F5 RIL群体分别接种SMV N1、SMV N3株系及从佳木斯田间分离得到的疫霉根腐病混合菌种,结果表明:东农93-046对花叶病毒表现为抗病而对疫霉根腐病表现为感病,Conrad则相对应的表现为感病和耐病;RIL群体中对花叶病毒SMV N1、SMV N3的抗感表现都按1:1分离(χ2= 0.64*,χ2 = 0.43*),疫霉根腐病病害损失率基本符合正态分布(skew=0.93,kurtosis= 0.86)。利用SSR分子标记技术对该群体进行花叶病毒病抗性基因定位和疫霉根腐病的耐性QTL分析,分别将花叶病毒抗性基因RN1、RN3定位于F连锁群,其与Satt114的距离分别为5.2 cM 和4.9 cM,同时在该连锁群检测到一个与疫霉根腐病耐病性相关的QTL 即QPR_1,其与Satt252的距离为4.5 cM,在D1b+W连锁群上检测到两个与疫霉根腐病耐病性相关的QTL即是QPR_2、QPR_3,其与Satt428(Satt579)、Satt274的距离分别为1.05 cM,2.00 cM 。
- Abstract:
- The purpose of this study is to identify molecular loci resistance to soybean mosaic virus and to identify quantitative trait loci (QTLs) associated with the tolerance to soybean phytophthora root rot (PRR) using 160 F5?derived RI lines from a combination between Dongnong 93-046 (a soybean cultivar resistant to SMV but susceptible to PRR) and Conrad (a breeding line susceptible to SMV but tolerance to PRR).The results showed that the resistant and susceptible segregation in RIL population was fitted to ratio 1:1 for SMV,and the loss rate from PRR inoculation fit to normal distribution.Two SMV resistant loci and three QTLs associated with PRR tolerance were identified using SSR technique.SMV Resistant loci,RN1 and RN3 was located in MLGF and tightly linked with SSR makers Satt114 and Satt362.QTL QPR_1 associated with PRR tolerance was also be located in MLG F.QTLs QPR_2 and QPR_3 was located in MLGD1b+W.The phenotypic contribution of the three QTLs were 9.38%,19.4% and 7.02%,respectively.
参考文献/References:
[1]Kiihl R A S,Hartwig E E.Inheritance of reaction to soybean mosaic-virus in soybeans[J].Crop Science,1979,19:372-375.
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备注/Memo
基金项目:国家高技术研究发展计划(863计划)资助项目(2006AA10Z1F1)。