biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 24:13-19, 1982 | DOI: 10.1007/BF02898476

Biotypic differences in the karyology ofPennisetum pedicellatum Trin

A. K. Chatterji1, N. Sahu1
1 Applied Botany Section, Agr. Eng. Dept., Indian Institute of Technology, Kharagpur, India

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.

Received: January 7, 1981; Accepted: June 16, 1981; Published: January 1, 1982  Show citation

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Chatterji, A.K., & Sahu, N. (1982). Biotypic differences in the karyology ofPennisetum pedicellatum Trin. Biologia plantarum, 24(1), 13-19. doi: 10.1007/BF02898476
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