Assessment of storage protein variation in relation to some morphological characters in a sample of Spanish landraces of common wheat (Triticum aestivum L. ssp. aestivum)
Fifty nine Spanish landraces of common wheat belonging to different agrotypes were evaluated with four morphological spike characters and 11 seed protein loci in order to study the level of agreement between the agrotype classification and the morphological and biochemical variation of the wheats. As a result of the work 22 new gliadin alleles were found and 12 of them were catalogued. Multivariate and cluster analysis performed on the two sets of data (morphological plus biochemical and biochemical only) showed that there was a clear relationship between seed protein composition and the wheat classification for the agrotypes 'Barbilla', 'Candeal' and 'Negrete'. For the other groups, agrotype classification was not consistent with the variation for biochemical characters although, some alleles in common were found except for the 'Jeja' type. Morphological traits revealed that they could be useful as first step in discriminating among agrotypes. In contrast, biochemical markers showed that genetic variation among accessions was higher than among agrotypes. The protein loci Gli-B1, Gli-A2, Gli-D2 and Gli-A1 were shown to be the most polymorphic and useful in discriminating between the accessions studied.
| Main Authors: | , , , , |
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| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Springer
2002
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| Subjects: | Common wheat, Gliadins, Glutenins, Landraces, Morphological traits, |
| Online Access: | http://hdl.handle.net/20.500.12792/3916 http://hdl.handle.net/10261/290985 |
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