Evidence map›Paper›PMID 41826870›Full record

ArticleBMC plant biology2026

Comparative transcriptome analysis identifies key players associated with downy mildew resistance in foxtail millet variety JG21 and its resistant mutant rdm12.

Yanqing Han, Anqi Wei, Yongchao Zhang, Hengbo Xiao, Xinyan Liang, Wen Zhang, Lei Su, Yuxin Fan, Haili Han, Mansen Jin and 4 more

Abstract readComparative Study
In one paragraph

Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

14 authors.

Yanqing HanCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Anqi WeiCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Yongchao ZhangCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Hengbo XiaoCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Xinyan LiangCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Wen ZhangCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Lei SuCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Yuxin FanCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Haili HanCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Mansen JinCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Zehua ZhangCollege of Plant Protection, Shanxi Hou Ji Laboratory, Shanxi Agricultural University, Taigu, 030801, China.
Yuanhuai HanHou Ji Laboratory in Shanxi Province, College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China.
Siyu HouHou Ji Laboratory in Shanxi Province, College of Agriculture, Shanxi Agricultural University, Taigu, 030801, China.
He WangSchool of Innovation&Entrepreneurship, Shanxi Agricultural University, Taigu, 030801, China. wanghe@sxau.edu.cn.

Funding

Science and Technology Innovation Enhancement Project of Shanxi Agricultural University CXGC2025088
6 · The paper itself

Abstract

backgroundFoxtail millet downy mildew, caused by the obligate parasite Sclerospora graminicola, is a highly devastating disease for foxtail millet. S. graminicola infection often damages buds, leaves, and spikes, significantly compromising its quality and yield. However, resistant varieties can effectively reduce susceptibility to pathogen attacks.

resultsIn this study, we investigated Jingu21 (JG21) and the resistant mutant rdm12, which was generated by ethyl methanesulfonate (EMS) mutagenesis. Phenotypic observations showed that rdm12 did not differ significantly from JG21 in agronomic and quality traits. Notably, rdm12 exhibited enhanced disease resistance, along with increased activities of defense enzymes and higher levels of osmoregulatory substances. Transcriptome analysis of rdm12 mutants and JG21 revealed that differentially expressed genes (DEGs) were mainly enriched in pathways such as plant-pathogen interaction, MAPK signaling, diterpenoid biosynthesis, and glutathione metabolism. The differential expression of several key genes—including receptor protein kinase genes, WRKY transcription factors, pathogenesis-related (PR) proteins, calmodulin, glutathione S-transferase—contributed to improved downy mildew resistance in the mutants. In particular, WRKY transcription factor 53 (encoded by Seita.3G139400), pathogenesis-related protein PRMS (encoded by Seita.3G175100), and G-type lectin S-receptor-like serine/threonine protein kinase (encoded by Seita.7G095600) played an essential role in resistance during S. graminicola infection.

conclusionsThis study identifies key genes and important products involved in resistance, along with their associated metabolic pathways, thereby elucidating the resistance mechanism of foxtail millet against S. graminicola. These findings provide a theoretical foundation for resistance screening in foxtail millet.

Indexed as

Disease ResistanceOomycetesPlant DiseasesSetaria PlantGene Expression ProfilingGene Expression Regulation, PlantMutationTranscriptomeDifferentially expressed genesDowny mildewFoxtail milletResistance mechanismSclerospora graminicolaTranscriptome

Identifiers

PMID41826870
PMCPMC13097908

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