Publication: Integrative omics approaches revealed a crosstalk among phytohormones during tuberous root development in cassava
Issued Date
2020-01-01
Resource Type
ISSN
15735028
01674412
01674412
Other identifier(s)
2-s2.0-85089082577
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Plant Molecular Biology. (2020)
Suggested Citation
Yoshinori Utsumi, Maho Tanaka, Chikako Utsumi, Satoshi Takahashi, Akihiro Matsui, Atsushi Fukushima, Makoto Kobayashi, Ryosuke Sasaki, Akira Oikawa, Miyako Kusano, Kazuki Saito, Mikiko Kojima, Hitoshi Sakakibara, Punchapat Sojikul, Jarunya Narangajavana, Motoaki Seki Integrative omics approaches revealed a crosstalk among phytohormones during tuberous root development in cassava. Plant Molecular Biology. (2020). doi:10.1007/s11103-020-01033-8 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/57649
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Integrative omics approaches revealed a crosstalk among phytohormones during tuberous root development in cassava
Abstract
© 2020, Springer Nature B.V. Key Message: Integrative omics approaches revealed a crosstalk among phytohormones during tuberous root development in cassava. Abstract: Tuberous root formation is a complex process consisting of phase changes as well as cell division and elongation for radial growth. We performed an integrated analysis to clarify the relationships among metabolites, phytohormones, and gene transcription during tuberous root formation in cassava (Manihot esculenta Crantz). We also confirmed the effects of the auxin (AUX), cytokinin (CK), abscisic acid (ABA), jasmonic acid (JA), gibberellin (GA), brassinosteroid (BR), salicylic acid, and indole-3-acetic acid conjugated with aspartic acid on tuberous root development. An integrated analysis of metabolites and gene expression indicated the expression levels of several genes encoding enzymes involved in starch biosynthesis and sucrose metabolism are up-regulated during tuberous root development, which is consistent with the accumulation of starch, sugar phosphates, and nucleotides. An integrated analysis of phytohormones and gene transcripts revealed a relationship among AUX signaling, CK signaling, and BR signaling, with AUX, CK, and BR inducing tuberous root development. In contrast, ABA and JA inhibited tuberous root development. These phenomena might represent the differences between stem tubers (e.g., potato) and root tubers (e.g., cassava). On the basis of these results, a phytohormonal regulatory model for tuberous root development was constructed. This model may be useful for future phytohormonal studies involving cassava.