Indian Society of Genetics & Plant Breeding

Important

CYTOMIXIS IN MAIZE HAPLOIDS

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Cytomixis was extensively seen in maize haploids treated with colchicine. Genomic
imbalance in the form of haploidy is probably responsible for the occurrence of cytomixis.
Genotypic differences as well as colchicine treatment influenced the expression of this
phenomenon. The highest number of cells in a single cluster ~ith interconnections was 48.
Some cells with as high as 27 chromosomes and a few with no chromosome were also seen.
There was a kind of relay pattern in the transfer of chromatin material. Chromatin transfer
was more pronounced in meta-ana I. A 15-20 fold increase in pollen fertility was observed
in the haploids with extensive cytomixis.
 

Keywords: Maize, haploids, cytomixis, genetics, selection.

Info

Year: 1996
Volume: 56
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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