ZHANG Hai-peng,GUO Na,NIU Jing-ping,et al.Genetic Analysis of Resistance to Phytophthora sojae and Mapping of ResistanceGene in Soybean Cultivar Zheng 97196[J].Soybean Science,2016,35(03):373-379.[doi:10.11861/j.issn.1000-9841.2016.03.0373]
大豆品种郑97196 对疫霉根腐病的抗性遗传分析及基因定位
- Title:
- Genetic Analysis of Resistance to Phytophthora sojae and Mapping of ResistanceGene in Soybean Cultivar Zheng 97196
- Keywords:
- Glycine max; Phytophthora root rot of soybean; Genetic analysis; Resistance gene; SSR markers
- 分类号:
- S565. 1
- 文献标志码:
- A
- 摘要:
- 由大豆疫霉引起的大豆疫霉根腐病是一种世界性大豆病害,对产量品质影响极大。利用抗病品种进行防治是目前最经济、有效的方法。大豆对疫霉菌株的抗性分为由单基因控制的完全抗性和由多基因控制的部分抗性两种。以对多个大豆疫霉生理小种具有抗性的大豆品种郑97196 作为抗性亲本与大豆感病品系X242003 杂交构建F2∶3重组自交家系群体,用大豆疫霉菌株HeN35 对亲本及F2∶3群体进行抗性遗传分析并利用SSR 技术对郑97196 的抗性基因进行定位。结果表明: 郑97196 对大豆疫霉抗性是由一对显性单基因控制的,抗病对感病表现为显性,再用9 种毒力公式不同的疫霉菌株分别接种郑97196 和14 个国内外公认的含有单个抗病基因的大豆品种( 鉴别寄主) ,观察并记录抗性反应类型,结果显示郑97196 的抗性反应类型与14 个鉴别寄主有所不同,推测其可能含有新的抗病基因,暂命名为RpsZheng。通过SSR 分子作图分析,该基因位于大豆分子遗传图谱N 连锁群上satt485 和satt584 之间,与这两个标记之间的距离分别为2. 1 和3. 7 cM。
- Abstract:
- Phytophthora root rot of soybean is a worldwide soybean diseases caused by Phytophthora sojae ( P. sojae) ,has agreat impact on the yield and quality. Resistant cultivars is the most economical and effective method to prevent it. SoybeanPhytophthora resistance contain complete resistance controlled by single gene and partial resistance controlled by multiplegenes,in this study the cultivars Zheng 97196 to multiple physiological strain of P. sojae resistant. A population of F2∶3 recombinantinbred lines( RIL) derived from the cross of Zheng 97196 × X242003,then the RIL was used to analyze the inheritanceof resistance by inoculated P. sojae HeN35 and map the resistance gene to a linkage group. The results showed that the resistanceof Zheng 97196 to P. sojae was controlled by a single gene ( Rps) ,and the resistance was dominant to susceptible,then9 kinds of different virulence formula P. sojae were inoculated Zheng 97196 and 14 widely recognized as disease-resistant soybeanvarieties contain a single gene( differential hosts) ,recorded the type of reaction,the results showed Zheng 97196 reactiontype was different from 14 differential hosts,speculated that it may have new resistance genes,temporarily namedRpsZheng. Basis of linkage analysis with SSR markers the gene was located on molecular linkage group N and flanked bysatt485 and satt584 with genetic distances 2. 1 and 3. 7 cM.
参考文献/References:
[1] Wrather J A,Anderson T R,Arsyad D M,et al. Soybean diseaseloss estimates for the top ten soybean-producing countries in 1998[J]. Canadian Journal of Plant Pathology,2001,23 ( 2 ) :115-121.
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备注/Memo
基金项目: 国家公益性行业( 农业) 科研专项经费( 201303018) ; 优质高产高油大豆种质创新与新品种选育( BE2013350) ; 江苏省自然科学基金项目( BK2011637 和BK20130684) ; 国家现代农业产业技术体系( CARS-04-PS10) ; 江苏省现代作物生产协同创新中心。