Tetraploids, triploids, and 2n pollen from diploid interspecific crosses with cassava

@article{Hahn1990TetraploidsTA,
  title={Tetraploids, triploids, and 2n pollen from diploid interspecific crosses with cassava},
  author={Sanghee Hahn and K. Vijaya Bai and Robert Asiedu},
  journal={Theoretical and Applied Genetics},
  year={1990},
  volume={79},
  pages={433-439}
}
Interspecific crosses of five cultivated cassava varieties (2n=36) were made with two related Manihot species, M. epruinosa (2n=36) and M. glaziovii (2n=36). From these diploid interspecific crosses, four spontaneous tetraploids (2n=4x=72) and two triploids (2n=3x=54) were isolated for the first time in cassava. Occurrence of relatively high frequencies (0.1%–35.6%) of 2n pollen and of apomixis seems to be associated with sexual polyploidization. The tetraploids and triploids were very vigorous… CONTINUE READING
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