The work of what scientist was largely ignored?

The work of Gregor Mendel, often referred to as the father of genetics, was largely ignored during his lifetime. His foundational experiments with pea plants in the mid-19th century established the principles of inheritance, but they were not recognized until decades later when researchers rediscovered his findings around the turn of the 20th century. Mendel's concepts of dominant and recessive traits laid the groundwork for modern genetics, yet they remained obscure during his time.