answer in detail what is CROSSING OF DIFFERENT SPECIES...
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Answer:Interspecific hybridization/wide crossing involves crossing plants belonging to two different species that are not normally sexually compatible. It is used to transfer useful characteristics from wild relatives to cultivated species or to combine favorable traits of two different species, but significant amounts of time and scientific expertise need to be invested. Biotechnology approaches such as in vitro embryo rescue and anther culture are crucial to overcome sexual incompatibility and to speed up the process. In vitro embryo rescue utilizes a sequence of tissue culture techniques to enable a fertilized immature embryo, resulting from an interspecific cross, to avoid abortion caused by unbalanced endosperms and to continue growth and development until it can be regenerated into an adult plant. Anther culture is the aseptic culture of immature anthers (within which pollen develops and matures) to generate haploid plants. The chromosome number is then doubled through the application of chemicals such as colchicine or other in vitro techniques. Colchicine is also used to artificially double the chromosome number of sterile wild hybrid plants in order for functional pollen and eggs to be produced and allopolyploid fertile progenies to be obtained.
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