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Plant or animal is bred with a plant or animal from different stock, the method is termed as hybridization. There are several reasons to create hybrids, as well as increasing genetic diversity and breeding for specific qualities. It is often practiced in agriculture, to create stronger, healthier plants with pleasing characteristics. The most common form of hybridization involves crossing two organisms of dissimilar breeds contained by the same species. This is often additionally known as crossbreeding. In agriculture, it is used to generate healthier crops or new flavors, such as the tangelo, a cross between a tangerine and a pomelo. In agriculture, it is vitally important to maintain genetic diversity, and by extension the health and longevity of a crop. Hybrid speciation may take place at either the homoploid (i.e., between two species of the identical ploidy) or the polyploid level, each with its assistant genetic and evolutionary consequences. Whereas allopolyploidy (i.e., ensuing from hybridization and genome doubling) has long been documented as an important mode of plant speciation, the implications of genome duplication have usually not been taken into thought in most fields of plant biology. Recent developments in genomics are revolutionizing our views of angiosperm genomes, demonstrating that possibly all angiosperms have likely undergone at least one round of polyploidization and that hybridization has been an important force in generating angiosperm species diversity. Hybridization and polyploid formation continue to generate species diversity, with more than few new allopolyploids having originated just within the past century or so. The origins of polyploid species whether via hybridization between species or between genetically differentiated populations of a sole species-and the immediate genetic has consequences of polyploid formation are therefore receiving enthusiastic awareness.