From Single nc-RNAs to Networks: Understanding the Complexity of Environmental Adaption

Plants are sessile species and are continuously exposed to different environmental stressors, including drought, extreme temperatures, salinity, and pathogen attacks, which can significantly impede their growth, development, and productivity. Thus, they have developed intricate mechanisms to detect various environmental factors, trigger appropriate signaling pathways and cascades, and respond accordingly by modifying the expression of numerous genes at transcriptional, post-transcriptional and even epigenetic levels. This enables them to mitigate stressful conditions such as drought, high temperatures, nutrient deficiencies, and pathogenic infections. Noncoding RNAs (ncRNAs) constitute a substantial and substantial fraction of eukaryotic transcriptomes; these RNAs are functional but have little to no ability to code for proteins. These mechanisms include the enhancement of environmental fluctuation tolerance and adaptation by ncRNAs, long-non-coding RNAs (lncRNAs), and small-interfering RNAs (siRNAs), particularly microRNAs (miRNAs). The several kinds of ncRNAs, their diverse roles and connections, transcription, translation, and modification concerning environmental adaptation are covered in this chapter. In addition to highlighting the molecular perspective and networking in plants as adaptation factors, we offer an overview of the integrated networks of ncRNA interactions, illuminating the comprehensive role that species-specific networks of nc-RNAs play in plant responses to environmental stress. In the current perspective, we described the role of nc-RNAs in plant environmental adaptation presents a promising path forward for our understanding of plant responses to diverse environmental conditions and their adaptations. By exploring the complex world of nc-RNAs in greater detail, we can uncover new possibilities and insights that will help us improve agricultural practices and ensure food production when faced with environmental challenges.