What was Dr. Dre’s role in creating the subgenre of G-Funk?

Dr. Dre’s solo debut album, The Chronic, introduced the “G-Funk” production style in 1992. It was characterized by plodding tempos, synthesizer washes, and copious musical sampling of 1970s funk records, especially those by Parliament-Funkadelic. G-Funk was arguably a “sub-subgenre” of rap, since it was derived from the gangsta rap subgenre N.W.A. had previously contributed to.