Will geographical isolation be a major factor in the speciation of a self- pollinating plant species

2. Will geographical isolation be a major factor in the speciation of a self- pollinating plant species? Why or why not?

In self-pollinating plants male as well as female reproductive parts lie on the same plant. Pollinators like insects and honeybee transfer the anther to the stigma of the same plant or different plant. In most of the cases, the plant is the same or nearby plant. So, they are already reproductively isolated and geographical isolation does not have any significant role in speciation. In such plants, speciation occurs at a faster pace but deleterious mutations lead to the end of the lineage. To survive most of such plant develop methods which allow only crossbreeding.

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