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Comparative transcriptome analysis of melon (Cucumis melo L.) reveals candidate genes and pathways involved in powdery mildew resistance

文献类型： 外文期刊

作者： Zhao, Zengqiang 1 ; Dong, Yongmei 1 ; Wang, Jianyu 2 ; Zhang, Guoli 1 ; Zhang, Zhibin 3 ; Zhang, Aiping 2 ; Wang, Zhijun 1 ; Ma, Panpan 1 ; Li, Youzhong 1 ; Zhang, Xiying 2 ; Ye, Chunxiu 4 ; Xie, Zongming 1 ;

作者机构： 1.Xinjiang Acad Agr & Reclamat Sci, Biotechnol Res Inst, Xinjiang Prod & Construct Grp Key Lab Crop Germpl, Shihezi 832000, Xinjiang, Peoples R China

2.Sixth Div Xinjiang Prod & Construct Grp, Agr Sci Res Inst, Wujiaqu 831300, Peoples R China

3.Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biol, Anyang 455000, Peoples R China

4.Xinjiang Agr Univ, Urumqi 830052, Xinjiang, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.996； 五年影响因子：5.516 ）

ISSN： 2045-2322

年卷期： 2022 年 12 卷 1 期

页码：

收录情况： SCI

摘要： Powdery mildew is a major disease in melon, primarily caused by Podosphaera xanthii (Px). Some melon varieties were resistant to powdery mildew, while others were susceptible. However, the candidate genes associated with resistance and the mechanism of resistance/susceptibility to powdery mildew in melon remain unclear. In this study, disease-resistant melon cultivar TG-1 and disease-susceptible melon cultivar TG-5 were selected for comparative transcriptome analysis. The results suggested that the numbers of differentially expressed genes (DEGs) in TG-5 was always more than that in TG-1 at each of the four time points after Px infection, indicating that their responses to Px infection may be different and that the active response of TG-5 to Px infection may be earlier than that of TG-1. Transcription factors (TFs) analysis among the DEGs revealed that the bHLH, ERF, and MYB families in TG-1 may play a vital role in the interaction between melon and powdery mildew pathogens. GO enrichment analysis of these DEGs in TG-5 showed that the SBP, HSF, and ERF gene families may play important roles in the early stage of melon development after Px infection. Finally, we speculated on the regulatory pathways of melon powdery mildew and found PTI and ABA signaling genes may be associated with the response to Px infection in melon.

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