What are the problems of distant hybridisation?

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There are two major aspect of distant hybridization modern and classical aspects. The following reasons are quantified as distant hybridization:

i. crossability relationships,

ii. presyngamic and postsyngamic barriers,

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iii. methods to overcome the barriers,

iv. use of distant species to develop disease,

v. insect, pest and stress resistant varieties,

vi. methods of transferring resistance genes ‘ from wild species to cultivated varieties.

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vii.selection procedure in the progenies of distant hybrids, and

viii. synthesis of new crop species.

In addition, various aspects of biotech­nology, somatic cell hybridization, molecular biology and genetic engineering for the utilization of wild species are also another aspect that deals with distant hybridization.

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