Identification and characterization of waterlogging-responsive genes in the parental line of maize hybrid An'nong 876

Waterlogging stress is an important abiotic stress that adversely affects maize growth and yield. The mechanism regulating the early stage of the maize response to waterlogging stress is largely unknown. In this study, CM37 and cmh15 seedlings were treated with waterlogging stress and then examined...

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Published inGenetics and molecular biology Vol. 46; no. 4; p. e20230026
Main Authors Wu, Hongying, Yu, Haitao, Zhang, Xingen, Wang, Yixiao, Zhu, Hongjia, Zhao, Yang, Ma, Qing
Format Journal Article
LanguageEnglish
Published Brazil Sociedade Brasileira de Genetica 01.01.2023
Sociedade Brasileira de Genética
Subjects
BIOCHEMISTRY & MOLECULAR BIOLOGY
cmh15
Corn
Damage tolerance
Encyclopedias
Gene sequencing
Genes
GENETICS & HEREDITY
Genomes
Inbreeding
maize
Plant Genetics
RNA-seq
Seedlings
Sequence analysis
Stress
transcription factor
Transcription factors
Waterlogging
Waterlogging stress
transcription factor
cmh15
RNA-seq
maize
Waterlogging stress
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Summary:Waterlogging stress is an important abiotic stress that adversely affects maize growth and yield. The mechanism regulating the early stage of the maize response to waterlogging stress is largely unknown. In this study, CM37 and cmh15 seedlings were treated with waterlogging stress and then examined in terms of their physiological changes. The results indicated that inbred line cmh15 is more tolerant to waterlogging stress and less susceptible to peroxide-based damages than CM37. The RNA sequencing analysis identified 1,359 down-regulated genes and 830 up-regulated genes in the waterlogging-treated cmh15 plants (relative to the corresponding control levels). According to the Gene Ontology analysis for the differentially expressed genes (DEGs), some important terms were identified which may play important roles in the response to waterlogging stress. Moreover, enriched Kyoto Encyclopedia of Genes and Genomes pathways were also identified for the DEGs. Furthermore, the substantial changes in the expression of 36 key transcription factors may be closely related to the maize in response to waterlogging stress. This study offers important insights into the mechanism in regulating maize tolerance to waterlogging stress, with important foundations for future research.
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Associate Editor: Hong Luo
These authors contributed equally to this work.
Conflict of Interest: The authors declare that there is no conflict of interest that could be perceived as prejudicial to the impartiality of the reported research.
ISSN:1415-4757
1678-4685
1678-4685
DOI:10.1590/1678-4685-GMB-2023-0026