The stability of plant genomes is essential for human life as plants are the major source of calories for the human population. Understanding how plant genomes are stability inherited is crucial for plant productivity and, as a consequence, for human health. In this project, we aim to explore the precise molecular mechanisms and overall impact of RNA postranscriptional modifications during pollen development and reproduction in plants. The pollen grain development represents the culmination of the transition of the cell from somatic to reproductive. In a process as crucial as this the genetic (DNA) and epigenetic (proteins, RNA and modified DNA) content of the cell must be precisely orchestrated in order to: (I) become a successful reproductive cell, (II) being compatible with its female counterpart and (III) contain all the information needed to accomplish the life cycle of the individual. Understanding how this process works and how it can be manipulated is crucial for understanding how life works but it also has many potential applications in plant breeding. Unpublished data from our laboratory reveal a role for postranscriptional modifications of RNA bases in the ability of the pollen grain to germinate, generating exciting opportunities to facilitate plant breeding. In particular, it could facilitate to introduce genetic variability into several crop species improving pollen compatibility.