PRINS-labeled knobs are not associated with increased chromosomal stickiness in the maize st1 mutant

Article Abstract:

Several maize lines of known knob composition were analyzed to determine if primed in situ labeling (PRINS) could be used to localize knob sequences on maize chromosomes. Results indicate that the increase in chromosomal stickiness could be due to an increase in stickiness of knob and nonknob chromosomal regions, and that the mechanism responsible for the st1 mutant is different from that implicated in previously described sticky chromosomes situations and may not involve knob heterochromatin.

United States, Gene mutations, Gene mutation, Plant chromosomes

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Spontaneous hybridization between maize and teosinte

Article Abstract:

The sympatric populations of maize and its closest wild taxon- teosinte undergo hybridization. The resultant progeny shows hybrid resistance specific to maize and an allozyme allele specific to teosinte.

Hybridization, Hybridization, Vegetable, Hybrid plants

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