It should be understood that when a research is not scientifically proven with the right process,tools and other a normal or certain condition, it is described as an assumption.
In this case, Gene outcome about the plants can only be concluded as assumption because it is not proven by scientific processes or procedures.
I read about ocean tides. the Moon has an effect on the ocean which causes the ocean to bulge toward the Moon. When the Moon is in alignment with the sun the ocean bulges out more because of the added gravity. The Moon though smaller than the sun has more gravitational pull than the sun.