Allopolyploid
Definition
An allopolyploid is an organism that contains two or more sets of chromosomes derived from different species. This results from hybridization followed by chromosome doubling.
5 Must Know Facts For Your Next Test
- Allopolyploidy is a significant mechanism in the formation of new plant species.
- Hybridization between two different species leads to the initial formation of an allopolyploid.
- Chromosome doubling occurs naturally or can be induced artificially to stabilize the hybrid genome.
- Allopolyploids possess traits from both parent species, often leading to increased vigor and adaptability.
- Many important agricultural crops, such as wheat and cotton, are examples of allopolyploids.
Review Questions
- How does an allopolyploid differ from an autopolyploid?
- What role does chromosome doubling play in the formation of an allopolyploid?
- Can you name two agricultural crops that are examples of allopolyploids?
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Related terms
Hybridization: The process of combining different varieties or species to create a hybrid.
Autopolyploid: An organism with multiple sets of chromosomes derived from a single species.
Speciation: The evolutionary process by which populations evolve to become distinct species.
