ISSN:
1432-2242
Keywords:
Triticum aestivum
;
Tissue culture
;
Callus
;
Monosomic analysis
;
Regeneration
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary The ability of immature embryos of wheat (Triticum aestivum L.) to respond in cell culture was examined in crosses between the ‘Wichita’ monosomic series and a highly regenerable line, ‘ND7532’. Segregation in disomic controls and 13 monosomic families showed a good fit to a monogenic ratio indicating a qualitative mode of inheritance. Segregation in the cross involving monosomic 2D showed a high frequency of regeneration (93.6%) and high callus growth rate (1.87 g/90 days) indicating that 2D is a critical chromosome. Modifying genes may be located on other chromosomes. Substitution of chromosomes from a low regenerable cultivar ‘Vona’ further indicated that the group 2 chromosomes, in particular chromosome 2D, possess genetic factors promoting callus growth and regeneration.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00262556
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