Genetic analysis and mapping of resistance to Phytophthora sojae of Pm14 in soybean.

Reference Report for RTN20200416.13

Title:	Genetic analysis and mapping of resistance to Phytophthora sojae of Pm14 in soybean.
Authors:	Wu, X., Zhou, B., Sun, S., Zhao, J., Chen, S.Y., Gai, J.Y., Xing, H.
Source:	Scientia Agricultra Sinica 2011, 44(3):456-460
Abstract:	Objective: The objective of this study was to reveal the inheritance pattern and map resistance gene to Phytophthora sojae (P. sojae) strain Pm14 in soybean. Method: A population of 176 recombinant inbred lines (RIL) derived from the cross of Su88-M21 × Xinyixiaoheidou was evaluated for phytophthora resistance using the hypocotyl inoculation technique. The RIL was used to analyze the inheritance of resistance and map the resistance gene to a linkage group. Result: The results showed that the resistance of Su88-M21 to strain Pm14 is controlled by a single gene (Rps), and the resistance is dominant to susceptible. RpsSu (resistance gene in Su88-M21 was temporarily designated) is a novel phytophthora resistance gene which was firstly found on molecular linkage group O, and flanked by Satt358 and Sat_242 with genetic distances 3.5 cM and 7.4 cM. Conclusion: The resistance to Pm14 is controlled by a single dominant gene (Rps), and the resistance gene RpsSu in Su88-M21 was firstly mapped on molecular linkage group O.

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