R
rossum
Guest
All of these, and others, are elements of current evolutionary theory. The “Modern Synthesis” was developed from about 1900 to 1920 as Mendelian genetics was incorporated into the then existing theory. Since that time Kimura’s Neutral theory, symbogenesis (as you mention), DNA sequencing and more have been incorporated.Neo-Darwinian theory (or Modern Synthesis) is incomplete and needs extension, and has competition from:
- symbiogenesis (cooperation between species)
- horizontal gene transfer (i.e., non-parental transfer)
- inheritance of acquired characteristics (e.g., sperm RNAs).
A scientific theory is not something static. It develops to incorporate new evidence as such new evidence is discovered.