We know that all modern roses were developed from the wild five-petal variety. Not only do modern roses have many more petals, but they have a much larger number of chromosomes. Explain how this probably came about.© BrainMass Inc. brainmass.com October 9, 2019, 9:38 pm ad1c9bdddf
To create modern roses selective breeding was used to propagate desired traits such as petal number, scent, hardiness, etc. Examination of rose genetics reveals increases in chromosome number. ...
Short paragraph examining the evolution and genetics of modern roses. Web references provided.