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Article

Multidimensional Gene Regulatory Landscape of Motor Organ Pulvinus in the Model Legume Medicago truncatula

by
Quanzi Bai
1,2,†,
Wenjing Yang
1,2,†,
Guochen Qin
3,
Baolin Zhao
1,
Liangliang He
1,
Xuan Zhang
1,2,
Weiyue Zhao
1,2,
Dian Zhou
1,4,
Ye Liu
1,4,
Yu Liu
1,
Hua He
1,
Million Tadege
5,
Yan Xiong
6,
Changning Liu
1,2,* and
Jianghua Chen
1,2,*
1
CAS Key Laboratory of Topical Plant Resources and Sustainable Use, CAS Center for Excellence in Molecular Plant Sciences, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 88 Xuefu Road, Kunming 650223, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 201602, China
4
School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
5
Department of Plant and Soil Sciences, Institute for Agricultural Biosciences, Oklahoma State University, 3210 Sam Noble Parkway, Ardmore, OK 73401, USA
6
Basic Forestry and Proteomics Research Centre, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Int. J. Mol. Sci. 2022, 23(8), 4439; https://doi.org/10.3390/ijms23084439
Submission received: 23 February 2022 / Revised: 11 April 2022 / Accepted: 13 April 2022 / Published: 18 April 2022
(This article belongs to the Collection Recent Advances in Plant Molecular Science in China 2021)
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Abstract

Nyctinastic leaf movement of Fabaceae is driven by the tiny motor organ pulvinus located at the base of the leaf or leaflet. Despite the increased understanding of the essential role of ELONGATED PETIOLULE1 (ELP1)/PETIOLE LIKE PULVINUS (PLP) orthologs in determining pulvinus identity in legumes, key regulatory components and molecular mechanisms underlying this movement remain largely unclear. Here, we used WT pulvinus and the equivalent tissue in the elp1 mutant to carry out transcriptome and proteome experiments. The omics data indicated that there are multiple cell biological processes altered at the gene expression and protein abundance level during the pulvinus development. In addition, comparative analysis of different leaf tissues provided clues to illuminate the possible common primordium between pulvinus and petiole, as well as the function of ELP1. Furthermore, the auxin pathway, cell wall composition and chloroplast distribution were altered in elp1 mutants, verifying their important roles in pulvinus development. This study provides a comprehensive insight into the motor organ of the model legume Medicago truncatula and further supplies a rich dataset to facilitate the identification of novel players involved in nyctinastic movement.
Keywords: leaf movement; pulvinus; transcriptome; proteome; ELP1; Medicago truncatula leaf movement; pulvinus; transcriptome; proteome; ELP1; Medicago truncatula

Share and Cite

MDPI and ACS Style

Bai, Q.; Yang, W.; Qin, G.; Zhao, B.; He, L.; Zhang, X.; Zhao, W.; Zhou, D.; Liu, Y.; Liu, Y.; et al. Multidimensional Gene Regulatory Landscape of Motor Organ Pulvinus in the Model Legume Medicago truncatula. Int. J. Mol. Sci. 2022, 23, 4439. https://doi.org/10.3390/ijms23084439

AMA Style

Bai Q, Yang W, Qin G, Zhao B, He L, Zhang X, Zhao W, Zhou D, Liu Y, Liu Y, et al. Multidimensional Gene Regulatory Landscape of Motor Organ Pulvinus in the Model Legume Medicago truncatula. International Journal of Molecular Sciences. 2022; 23(8):4439. https://doi.org/10.3390/ijms23084439

Chicago/Turabian Style

Bai, Quanzi, Wenjing Yang, Guochen Qin, Baolin Zhao, Liangliang He, Xuan Zhang, Weiyue Zhao, Dian Zhou, Ye Liu, Yu Liu, and et al. 2022. "Multidimensional Gene Regulatory Landscape of Motor Organ Pulvinus in the Model Legume Medicago truncatula" International Journal of Molecular Sciences 23, no. 8: 4439. https://doi.org/10.3390/ijms23084439

APA Style

Bai, Q., Yang, W., Qin, G., Zhao, B., He, L., Zhang, X., Zhao, W., Zhou, D., Liu, Y., Liu, Y., He, H., Tadege, M., Xiong, Y., Liu, C., & Chen, J. (2022). Multidimensional Gene Regulatory Landscape of Motor Organ Pulvinus in the Model Legume Medicago truncatula. International Journal of Molecular Sciences, 23(8), 4439. https://doi.org/10.3390/ijms23084439

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