Abstract
Gliadin composition has been analysed in 403 accessions of spelt wheat (Triticum aestivum ssp. spelta); 61 different patterns were found for the -gliadins, 44 for the -gliadins, 19 for the -gliadins and 15 for the -gliadins. A subset of 333 accessions belonging to fifty populations from Asturias, North of Spain, showed high levels of genetic variation (A = 3.89, P = 0.88, Ne = 3.35 and He = 0.553), indicating that 82.5% of the genetic variation was within populations, and only 18.5% among populations. Thirty-five of these populations presented more of five accessions, in this new subset the values of genetic variation were higher that those of fifty populations (A = 4.49, P = 0.91, Ne = 3.80 and He = 0.595). The genetic variation within populations was 59.7% of the total, and 40.3% among populations, which could be associated to fixation effects of some alleles by genetic drift.
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Caballero, L., Martín, L. & Alvarez, J. Variation and genetic diversity for gliadins in Spanish spelt wheat accessions. Genetic Resources and Crop Evolution 51, 679–686 (2004). https://doi.org/10.1023/B:GRES.0000034575.97497.6e
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DOI: https://doi.org/10.1023/B:GRES.0000034575.97497.6e