ISSN:
1573-5060
Keywords:
Sorghum bicolor
;
sorghum
;
apomixis
;
obligate apomixis
;
facultative apomixis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Apomixis has been reported in a few lines of sorghum, among them R473 which was originally reported to be an obligate apomict. Although this line has multiple embryo sacs, the frequency of apomictic seed formation has not been determined because a progeny test has not been possible. R473 does not cross as a female with other lines except when its own pollen is present. In the present study mutations were induced in R473 by hydrazine and irradiation. Crosses were made between male-sterile mutants as females and normal R473 as males. Plants of R473 produced F1 hybrids sexually, thus indicating that they were not obligate apomicts. These F1's also reproduced sexually, as indicated by segregation for male sterility and male fertility in F2 progenies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00025118
Permalink