Principles of Plant Breeding (2+1)

Induction of allopolyploids

Allopolyploids

• Hybridization between distinct species followed by chromosomal doubling under natural conditions as well as through artificial means is the basic approach for the synthesis of allopolyploids.
• Some of the crops likes wheat , cotton are natural allopolyploids shows the spontaneous occurrence of this process in which either unreduced gametes from two species united or chromosome number doubled after hybridization.
• Synthesis of triticale is classical example of manmade allopolyploid from cross of wheat and rye.