How are natural genes (for variations) exploited for plant breeding programmes?

Dear student, 
​Please find below the solution to the asked query        

Breeding involves creation of new varieties and improvement of old ones by bringing in or incorporating beneficial characteristics. Such changes are possible only by bringing about genotypic variations in the plants. ​
The variations can either be natural which arise as a result of crossing over in sexual reproduction or artificial. 

Artificial plant breeding involves changing the genes (through genetic engineering) of a plant so that a new and better variety is developed. To conventionally breed a new plant variety two closely related plants are ‘sexually crossed’. The aim is to combine the favourable traits from both parent plants and exclude their unwanted traits in a new and better plant variety. 

Hope this information will clear your doubts about the topic.   
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