Transcriptome Analysis Reveals Multiple Hormones, Wounding and Sugar Signaling Pathways Mediate Adventitious Root Formation in Apple Rootstock
Autor: | Caiping Zhao, Jiangping Mao, Feng Dong, Liu Zhen, Yuan Meng, Lu Bao, Mingyu Han, Libo Xing, Ke Li, Yongqi Liang, Dong Zhang |
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Rok vydání: | 2018 |
Předmět: |
0106 biological sciences
0301 basic medicine Candidate gene Indoles Endogeny adventitious root (AR) Plant Roots 01 natural sciences lcsh:Chemistry Transcriptome Plant Growth Regulators Gene Expression Regulation Plant sugar metabolism lcsh:QH301-705.5 Spectroscopy Plant Proteins chemistry.chemical_classification Plant Stems General Medicine Cell cycle Computer Science Applications Cell biology apple rootstock Malus cell cycle Signal transduction education Biology indole-3-butyric acid (IBA) Article Catalysis Inorganic Chemistry 03 medical and health sciences Auxin Physical and Theoretical Chemistry Molecular Biology Gene hormones Sequence Analysis RNA Gene Expression Profiling Organic Chemistry wounding 030104 developmental biology lcsh:Biology (General) lcsh:QD1-999 chemistry Sugars transcriptome 010606 plant biology & botany Hormone |
Zdroj: | International Journal of Molecular Sciences Volume 19 Issue 8 International Journal of Molecular Sciences, Vol 19, Iss 8, p 2201 (2018) |
ISSN: | 1422-0067 |
Popis: | Adventitious roots (AR) play an important role in the vegetative propagation of apple rootstocks. The potential role of hormone, wounding, and sugar signalling pathways in mediating AR formation has not been adequately explored and the whole co-expression network in AR formation has not been well established in apple. In order to identify the molecular mechanisms underlying AR formation in &lsquo T337&rsquo apple rootstocks, transcriptomic changes that occur during four stages of AR formation (0, 3, 9 and 16 days) were analyzed using high-throughput sequencing. A total of 4294 differentially expressed genes were identified. Approximately 446 genes related to hormones, wounding, sugar signaling, root development, and cell cycle induction pathways were subsequently selected based on their potential to be involved in AR formation. RT-qPCR validation of 47 genes with known functions exhibited a strong positive correlation with the RNA-seq data. Interestingly, most of the candidate genes involved in AR formation that were identified by transcriptomic sequencing showed auxin-responsive expression patterns in an exogenous Indole-3-butyric acid (IBA)-treatment assay: Indicating that endogenous and exogenous auxin plays key roles in regulating AR formation via similar signalling pathways to some extent. In general, AR formation in apple rootstocks is a complex biological process which is mainly influenced by the auxin signaling pathway. In addition, multiple hormones-, wounding- and sugar-signaling pathways interact with the auxin signaling pathway and mediate AR formation in apple rootstocks. |
Databáze: | OpenAIRE |
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