Abstract
Detailed karyological analyses have been made of the five biotypes ofPennisetum pedicellatum Trin. These biotypes not only differ in some morphological traits but also in their chromosomal characteristics. Biotype-B with 2n = 48 chromosomes shows constancy, while in the other four 2n = 36 and 64 are found to be “floating”. Other numerical variations include 2n = 42 and 18 chromosomes. Minute karyological differences are not only noted amongst the biotypes, but also there are variations in the complements within a biotype. Such variations are presumed to be buffered through the apomictic mode of reproduction. From the morphological and cytological studies, the possibility of separation of biotype-B from the complex in future has been envisaged.
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Chatterji, A.K., Sahu, N. Biotypic differences in the karyology ofPennisetum pedicellatum Trin. Biol Plant 24, 13–19 (1982). https://doi.org/10.1007/BF02898476
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DOI: https://doi.org/10.1007/BF02898476