[Intravarietal heterogeneity of durum wheat is an important component of species biodiversity].
Sixty-four durum wheat varieties of the domestic breeding (USSR and Russia) were studied for heterogeneity using various genetic markers: storage proteins (gliadins), RAPD, and microsatellite (SSR) markers. About a third of the studied varieties (24) were shown to be heterogeneous at the protein markers. These varieties contained from two to six biotypes. Using the molecular markers, the biotypes were found to differ not only in the gliadin-coding genes as determined with the protein markers, but also in other chromosome regions. Moreover, using SSR markers, some additional subbiotypes were detected within the biotypes defined with the gliadin markers. Thus, the intravarietal durum wheat heterogeneity is an important component of general species biodiversity.
Kudriavtsev
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AM
D044822:Biodiversity; D001947:Breeding / Q000379:methods; D032461:Chromosomes, Plant / Q000235:genetics*; D017343:Genes, Plant / Q000235:genetics*; D005819:Genetic Markers; D005903:Gliadin / Q000235:genetics*; D018895:Microsatellite Repeats / Q000235:genetics*; D019105:Random Amplified Polymorphic DNA Technique / Q000379:methods; D014908:Triticum / Q000235:genetics*
D005819:Genetic Markers; D005903:Gliadin