Summary

Plant breeding methods enabled the genetic modifications that domesticated many wild plants to produce our modern crop plants

Tissue culture methods slightly expand the gene pool available for crop improvement

(and also play a vital role in transgenic plant production)

Genomics methods enable better utilization of gene pool resources for crop improvement, but provide no increase in the size of the gene pool

Transgenic plant methods provide a dramatic increase in the size of the gene pool

available for crop improvement

Biotechnology methods will be valuable to further optimize our crops for human use

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