ISSN:
1615-6110
Keywords:
Angiosperms
;
Gramineae
;
Triticum
;
Leaves
;
tricin derivatives
;
schaftoside
;
iso-orientin O-glycosides
;
chemosystematics
;
origin of bread wheat
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Leaf flavonoids have been identified in seven species ofTriticum, all of which have been considered at one time as putative parents of the cultivated tetraploid and hexaploid wheats. The major constituents are apigenin- and luteolin-based glycosylflavones, some of which contain various O-glycosidic attachments at the 6″-position. Four tricin glycosides are present in minor amount, as is free tricin. The flavonoid patterns link togetherT. searsii, T. speltoides andT. squarrosa, on the one hand, andT. monococcum, T. boeoticum, T. thaoudar andT. urartu, on the other. These results indicate that the first three taxa are more likely to be diploid ancestors to the hexaploidT. aestivum than the latter four species.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00990127
