As sessile organisms, plants must continuously adapt their development to the surrounding environment. Therefore, accurate molecular systems operate to transduce environmental signals into appropriate developmental responses. These systems include both transcriptional and post-transcriptional processes. Among them, we are particularly intrigued by the potential of alternative splicing in diversifying plant transcriptomes, a research area that remains relatively underexplored. Our research is centered on understanding: (i) The transcriptomic changes responsible for driving developmental adaptations in specific environmental contexts. (ii) The mechanisms through which regulatory proteins implement these environmentally induced transcriptomic changes. (iii) The integration of splicing and transcriptional regulation. To address these questions, our studies range from genome-wide approaches to detailed functional and molecular studies of specific genes and/or splicing isoforms. Through these studies, we expect to identify novel molecular pathways of environmentally regulated plant development. In addition, our genomic studies include the development of informatic resources for the study of plant alternative splicing (PastDB).