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The advantages of crosstalk during the evolution of the BZR1–ARF6–PIF4 (BAP) module∞

Journal of Integrative Plant Biology 2023年第12期65卷 2631-2644页

作者： Runjie Diao Mengru Zhao Yannan Liu Zhenhua Zhang Bojian Zhong College of Life Sciences Nanjing Normal UniversityNanjing 210023China

The BAP module,comprising BRASSINAZOLE RESISTANT 1(BZR1),AUXIN RESPONSE FACTOR 6(ARF6),and PHYTOCHROME‐INTERACTING FACTOR 4(PIF4),functions as a molecular hub to orchestrate plant growth and development.In Arabidopsis thaliana,components of the BAP module physically interact to form a complex system that integrates light,brassinosteroid(BR),and auxin signals.Little is known about the origin and evolution of the BAP module.Here,we conducted comparative genomic and transcriptomic analyses to investigate the evolution and functional diversification of the BAP module.Our results suggest that the BAP module originated in land plants and that theζ,ε,andγwhole‐genome duplication/triplication events contributed to the expansion of BAP module components in seed plants.Comparative transcriptomic analysis suggested that the prototype BAP module arose in Marchantia polymorpha,experienced stepwise evolution,and became established as a mature regulatory system in seed plants.We developed a formula to calculate the signal transduction productivity of the BAP module and demonstrate that more crosstalk among components enables higher signal transduction efficiency.Our results reveal the evolutionary history of the BAP module and provide insights into the evolution of plant signaling networks and the strategies employed by plants to integrate environmental and endogenous signals.

关键词： BAP module crosstalk origin and evolution signaling networks

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Plant Membrane Transport Research in the Post-genomic Era

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Plant Communications 2020年第1期1卷 64-81页

作者： Ren-Jie Tang Mingda Luan Chao Wang Dhondup Lhamo Yang Yang Fu-Geng Zhao Wen-Zhi Lan Ai-Gen Fu Sheng Luan Department of Plant and Microbial Biology University of CaliforniaBerkeleyCA 94720USA College of Life Sciences Northwest UniversityXi’an 710069China Nanjing University–Nanjing Forestry University Joint Institute for Plant Molecular Biology College of Life SciencesNanjing UniversityNanjing 210093China

Membrane transport processes are indispensable for many aspects of plant physiology including mineral nutrition,solute storage,cell metabolism,cell signaling,osmoregulation,cell growth,and stress responses.Completion of genome sequencing in diverse plant species and the development of multiple genomic tools have marked a new era in understanding plant membrane transport at the mechanistic level.Genes coding for a galaxy of pumps,channels,and carriers that facilitate various membrane transport processes have been identified while multiple approaches are developed to dissect the physiological roles as well as to define the transport capacities of these transport systems.Furthermore,signaling networks dictating the membrane transport processes are established to fully understand the regulatory mechanisms.Here,we review recent research progress in the discovery and characterization of the components in plant membrane transport that take advantage of plant genomic resources and other experimental tools.We also provide our perspectives for future studies in the field.

关键词： membrane transport ion channels transporters signaling networks genomics Arabidopsis

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