PJB-1980-1
Transmission of deficient gametes bu monosomics of avena sativa L.
H.M. I. HAFIZ
Abstract
Parental monosomics (2n-1=4)
derived from the cultivars garry (WM
2-1 ) from Canada and borreck (GM I-I) from west Germany , their monosomic F hybrids and BC 1-BC4 to sun II were used to study the transmission of deficient gamtes.
The frequency for functional 20-
chromosome male gametes was lower in the homozygous than heterozygous monosomics. The 40-,
41- and 42- chromosome progenies in selfed monosomic indivisuals
depend upon the proportion of deficient (2n-I) but functional male gametes . the correlation between the proportion of 20-chromosome gametes produced and the proportion that function is significant. (r= 0.86)
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