Affiliation:
1. Yunnan Agriculture University: Yunnan Agricultural University
Abstract
Abstract
Spongospora subterranea f. sp. subterranean causes powdery scab of potato and can result in significant losses to the production. In searching strategies of disease control, 22 potato cultivars were collected and screened for assessing the resistance to powdery scab under field conditions from 2014 to 2018 in Yunnan, China. Each variety was planted with 10 plants in each of three plots. Resistance of potato was evaluated by measuring yield, disease incidence and disease index. Resistance performance was evaluated through the 5-year study period. Results showed that varieties with high level of powdery scab resistance included Mira, Lishu 6, Lishu 12, S10-843, Xuanshu 5, Lishu 1105, Lishu 14, Xuanshu 6, Huishu 9 and Yunshu 505. Yunshu 401, Qingshu 9, Hezuo 88 and S10-277 were susceptible to powdery scab. The transcriptome analysis of resistant variety Mira and susceptible variety Cooperation-88(S88) under the stress of Spongospora subterranea was carried out to explore the genes involved in regulating the resistance of powdery scab.
Publisher
Research Square Platform LLC
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