Abstract:
BACKGROUND:Sheath blight (SB), caused by Rhizoctonia solani, is a common rice disease worldwide. Currently, rice cultivars with robust resistance to R. solani are still lacking. To provide theoretic basis for molecular breeding of R. solani-resistant rice cultivars, the changes of transcriptome profiles in response to R. solani infection were compared between a moderate resistant cultivar (Yanhui-888, YH) and a susceptible cultivar (Jingang-30, JG). RESULTS:In the present study, 3085 differentially express genes (DEGs) were detected between the infected leaves and the control in JG, with 2853 DEGs in YH. A total of 4091 unigenes were significantly upregulated in YH than in JG before infection, while 3192 were significantly upregulated after infection. Further analysis revealed that YH and JG showed similar molecular responses to R. solani infection, but the responses were earlier in JG than in YH. Expression levels of trans-cinnamate 4-monooxygenase (C4H), ethylene-insensitive protein 2 (EIN2), transcriptome factor WRKY33 and the KEGG pathway plant-pathogen interaction were significantly affected by R. solani infection. More importantly, these components were all over-represented in YH cultivar than in JG cultivar before and/or after infection. CONCLUSIONS:These genes possibly contribute to the higher resistance of YH to R. solani than JG and were potential target genes to molecularly breed R. solani-resistant rice cultivar.
journal_name
BMC Genomicsjournal_title
BMC genomicsauthors
Shi W,Zhao SL,Liu K,Sun YB,Ni ZB,Zhang GY,Tang HS,Zhu JW,Wan BJ,Sun HQ,Dai JY,Sun MF,Yan GH,Wang AM,Zhu GYdoi
10.1186/s12864-020-6645-6subject
Has Abstractpub_date
2020-03-19 00:00:00pages
245issue
1issn
1471-2164pii
10.1186/s12864-020-6645-6journal_volume
21pub_type
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