<P> Human impact on the environment has resulted in an increase in the intrabreeding between species , with introduced species worldwide , which has resulted in an increase in hybridization . The genetic mixing may threaten many species with extinction , while genetic erosion in crop plants may be damaging the gene pools of many species for future breeding . Many commercially useful fruits , flowers , garden herbs and trees have been produced by hybridization . One flower , Oenothera lamarckiana , was central to early genetics research into mutationism and polyploidy . </P>
<P> Human impact on the environment has resulted in an increase in the intrabreeding between species , with introduced species worldwide , which has resulted in an increase in hybridization . The genetic mixing may threaten many species with extinction , while genetic erosion in crop plants may be damaging the gene pools of many species for future breeding . Many commercially useful fruits , flowers , garden herbs and trees have been produced by hybridization . One flower , Oenothera lamarckiana , was central to early genetics research into mutationism and polyploidy . </P>
crossing of two parents belonging to different species is called
crossing of two parents belonging to different species is called
hybridization
hybridization