A case of genome partition in polyploid oats
β Scribed by G. Ladizinsky; R. Fainstein
- Book ID
- 104696688
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 295 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0040-5752
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β¦ Synopsis
At the second generation of the interspecific cross between the cultivated hexaploid (2n = 42) oat A. Sativa and the wild tetraploid (2n = 28) A. Murphyi, a plant having hexaploid and diploid (2n = 14) sectors was selected. Meiosis was highly regular in the diploid sector but the tillers failed to proceed beyond the boot stage and no seeds were produced. It is suggested that this diploid sector represents an entire genome of one of the diploid progenitors of the hexaploid oat.
π SIMILAR VOLUMES
Polyploidy is produced by multiplication of a single genome (autopolyploid) or combination of two or more divergent genomes (allopolyploid). The available data obtained from the study of synthetic (newly created or human-made) plant allopolyploids have documented dynamic and stochastic changes in ge