ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Functional and Applied Plant Genomics
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1581560
Integrated metabolome-transcriptome analyses reveal key pathways regulating staminate catkin development and pollen maturation in Betula platyphylla
Provisionally accepted
- College of Life Science, Northeast Forestry University, Harbin, China
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Flavonoids are the major metabolites in Betula platyphylla. However, our understanding of the role that flavonoids play in staminate catkin development and pollen maturation is still limited. Here, we performed a metabolome analysis during staminate catkin development and pollen maturation in B. platyphylla. These results indicated that mature pollen exhibited significantly high concentrations and diverse profiles of flavonoids. Moreover, using the integrated transcriptomic and metabolomic analyses, we found major metabolites and key genes involved in staminate catkin development and pollen maturation in the flavonoid pathway. Furthermore, WGCNA analysis identified key transcription factors (BpMYB18, BpMYB72, BpMYB95, and BpMYB109) as potential regulators in the flavonoid pathway. These findings shed light into the metabolic pathways regulating the development of staminate catkins and pollen maturation in B. platyphylla.
Keywords: Betula platyphylla, Flavonoids, Metabolomics, Transcriptomics, staminate catkins, Pollen maturation
Received: 22 Feb 2025; Accepted: 29 Apr 2025.
Copyright: © 2025 Liu, Shi, Jingyun, Jakada, Guo, Zeng and Lan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Xingguo Lan, College of Life Science, Northeast Forestry University, Harbin, China
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