Polymorphism of the storage proteins in Portuguese rye (Secale cereale L.) populations

Hereditas
Miguel RibeiroGilberto Igrejas

Abstract

Currently, due to the abandonment of traditional agricultural practices and the decline of rye production in Portugal, there is a need to assess the genetic diversity of rye in order to preserve its biodiversity. Furthermore, a greater knowledge of rye secalins is important for rye bread-making quality and other crop breeding purposes. The genetic variation and diversity of storage proteins were estimated for fourteen populations of rye (Secale cereale L.) sampled in northern Portugal. The work showed the high genetic diversity within the Portuguese rye gene-pool as an important source for plant breeding and emphasized the necessity of an integrated resources genetic program to allow a more efficient management and conservation of these resources. The rye populations were compared with 'Picasso' and 'Marder' varieties. Several alleles were identified by the single electrophoretic mobility patterns. We studied a set of 1600 rye seeds, including regional populations and varieties, having observed a total of 24, 5, 21 and 47 alleles for HMW, 75k γ-, 40k γ- and ω-secalins, respectively. The coefficient of similarity within populations is presented using cluster representation. The mean value of genetic variation indices (H) for rye...Continue Reading

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Citations

Oct 14, 2014·Journal of Agricultural and Food Chemistry·Bolesław P SalmanowiczHelena Kubicka-Matusiewicz
Nov 27, 2015·Molecular Ecology·Florence ParatChris-Carolin Schön

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