Summary
In “diploid”Sorghum species, 2n = 20, 10 bivalents are usually found, but quadrivalents and sexivalents occur occasionally.
In the “tetraploid”S. halepense, 2n = 40, quadrivalents, sexivalents and octavalents sometimes occur.
A fragmentally tetrasomic plant ofS. verticilliflorum was found which was phenotypically normal.
A strain of Dakota Amber Sorgo was found to be partially asynaptic. Multivalents, however, occur in it with unusual frequency.
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Huskins, C.L., Smith, S.G. A cytological study of the genusSorghum pers. Journ. of Genetics 28, 387–395 (1934). https://doi.org/10.1007/BF02981761
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DOI: https://doi.org/10.1007/BF02981761