Evolution and Rewiring of Transcriptional Regulatory Networks in Plant Genomes and the Phytoecosystem

Evolutionary changes in plant gene regulatory networks are recognized as a major source of botanical diversity and ecological adaptation. The regulation of gene expression is central to plant evolution, development, and responses to dynamic environmental conditions. While the role of gene expression evolution in shaping phenotypic variation is increasingly evident, the underlying genomic mechanisms and evolutionary drivers of widespread rewiring in plant transcriptional and post-transcriptional networks remain incompletely understood.Recent advances in plant genomics, transcriptomics, and epigenomics are beginning to reveal how changes in network architecture and regulatory elements drive novelty in plant genomes and adaptive differentiation within the phytoecosystem. Rewiring of gene regulatory networks—encompassing transcription factors, chromatin modifications, non-coding RNAs, and post-transcriptional events—has significant consequences for plant-environment interactions, symbiosis, and the resilience and function of terrestrial ecosystems.This Research Topic invites contributions that explore the molecular and evolutionary mechanisms underlying the evolution and rewiring of transcriptional and post-transcriptional regulatory networks in plants. We seek comprehensive studies that leverage genomics, epigenomics, and systems biology approaches to illuminate regulatory changes at both the species and phytoecosystem levels, including their implications for plant adaptation, biodiversity, and ecosystem services. Research integrating genotype-phenotype mapping, comparative genomics, or the roles of plant-microbe interactions in regulatory network evolution are especially welcome.By deepening our understanding of transcriptional network evolution in plants, this collection aims to provide insights into the generation of diversity essential for food security, ecosystem resilience, and progress towards SDGs 2 (Zero Hunger), 13 (Climate Action), and 15 (Life on Land).The goal of this Research Topic is to deepen our understanding of the molecular and evolutionary mechanisms driving the rewiring of gene regulatory networks in plants. By focusing on both transcriptional and post-transcriptional layers—such as transcription factors, chromatin dynamics, non-coding RNAs, and RNA processing—we aim to uncover how regulatory changes contribute to plant phenotypic diversity, ecological adaptation, and evolutionary innovation. Through the integration of genomics, epigenomics, transcriptomics, and systems biology, this collection seeks to illuminate how shifts in regulatory architecture impact plant-environment interactions, symbiosis, and resilience in changing ecosystems. We particularly welcome studies that apply comparative and functional approaches to link genotypic changes with phenotypic outcomes, as well as those that explore the role of regulatory evolution in plant-microbe relationships and biodiversity across phytoecosystems. Ultimately, this Topic aims to provide foundational insights into how the evolution of gene regulatory networks supports ecosystem function and global sustainability efforts, aligning with SDGs 2 (Zero Hunger), 13 (Climate Action), and 15 (Life on Land). Topic editors: Alireza Valdiani, Rambod Abiri Source: https://www.frontiersin.org/research-topics/73111/evolution-and-rewiring-of-transcriptional-regulatory-networks-in-plant-genomes-and-the-phytoecosystem