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Evaluation of Short-Season Soybean Genotypes for Resistance and Partial Resistance to Phytophthora sojae

文献类型： 外文期刊

作者： He, Shengfu 1 ; Wang, Xiran 1 ; Sun, Xiaohui 1 ; Zhao, Yuxin 1 ; Chen, Simei 1 ; Zhao, Ming 1 ; Wu, Junjiang 2 ; Chen, Xiaoyu 1 ; Zhang, Chuanzhong 1 ; Fang, Xin 1 ; Sun, Yan 1 ; Song, Bo 1 ; Liu, Shanshan 1 ; Liu, Yaguang 1 ; Xu, Pengfei 1 ; Zhang, Shuzhen 1 ;

作者机构： 1.Northeast Agr Univ, Soybean Res Inst, Key Lab Soybean Biol, Chinese Educ Minist, Harbin 150030, Peoples R China

2.Heilongjiang Acad Agr Sci, Soybean Res Inst, Key Lab Soybean Cultivat, Minist Agr, Harbin 150086, Peoples R China

关键词： short-season soybean; resistance; partial resistance; P; sojae

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN：

年卷期： 2023 年 24 卷 7 期

页码：

收录情况： SCI

摘要： Phytophthora root and stem rot caused by Phytophthora sojae Kaufmann and Gerdemann is a soil-borne disease severely affecting soybean production worldwide. Losses caused by P. sojae can be controlled by both major genes and quantitative trait locus. Here, we tested 112 short-season soybean cultivars from Northeast China for resistance to P. sojae. A total of 58 germplasms were resistant to 7-11 P. sojae strains. Among these, Mengdou 28 and Kejiao 10-262 may harbor either Rps3a or multiple Rps genes conferring resistance to P. sojae. The remaining 110 germplasms produced 91 reaction types and may contain new resistance genes or gene combinations. Partial resistance evaluation using the inoculum layer method revealed that 34 soybean germplasms had high partial resistance, with a mean disease index lower than 30. Combining the results of resistance and partial resistance analyses, we identified 35 excellent germplasm resources as potential elite materials for resistance and tolerance in future breeding programs. In addition, we compared the radicle inoculation method with the inoculum layer method to screen for partial resistance to P. sojae. Our results demonstrate that the radicle inoculation method could potentially replace the inoculum layer method to identify partial resistance against P. sojae, and further verification with larger samples is required in the future.

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