2012
DOI: 10.1111/j.1601-5223.2012.02239.x
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Polymorphism of the storage proteins in Portuguese rye (Secale cereale L.) populations

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… Show more

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Cited by 12 publications
(16 citation statements)
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“…Considering that rye cultivars are panmictic populations, characterized by high levels of heterozygosity and heterogeneity, they usually display similar genetic diversity levels as landraces, namely ex situ collections (Persson and von Bothmer, 2000, 2002; Persson et al, 2001; Parat et al, 2016). However, conflicting results reported higher levels of genetic diversity on Portuguese rye landraces than varieties (Ribeiro et al, 2012), as expected for most crops. Previous studies on the genetic diversity of rye accessions share common features, namely: lack of correlation between accessions and geographic origin and similar genetic diversity between landraces (i.e., ex situ ) and cultivars, which is indicative of a common genetic background, regardless of breeding level or geographical origin (Bolibok-Brągoszewska et al, 2014; Hagenblad et al, 2016; Parat et al, 2016; Targońska et al, 2016).…”
Section: Introductionmentioning
confidence: 96%
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“…Considering that rye cultivars are panmictic populations, characterized by high levels of heterozygosity and heterogeneity, they usually display similar genetic diversity levels as landraces, namely ex situ collections (Persson and von Bothmer, 2000, 2002; Persson et al, 2001; Parat et al, 2016). However, conflicting results reported higher levels of genetic diversity on Portuguese rye landraces than varieties (Ribeiro et al, 2012), as expected for most crops. Previous studies on the genetic diversity of rye accessions share common features, namely: lack of correlation between accessions and geographic origin and similar genetic diversity between landraces (i.e., ex situ ) and cultivars, which is indicative of a common genetic background, regardless of breeding level or geographical origin (Bolibok-Brągoszewska et al, 2014; Hagenblad et al, 2016; Parat et al, 2016; Targońska et al, 2016).…”
Section: Introductionmentioning
confidence: 96%
“…Until the middle of last century there was genetic exchanges as a result of transhumance linking the territory to remote and dispersed regions, mainly by pastoralism that have worked as ecological corridors from valleys to the mountainous areas. Considering, that 80% of Portuguese soils are acidic (Almeida, 1955), it has been shown that Northern rye populations display not only high genetic diversity on storage proteins (Ribeiro et al, 2012) but also on aluminum tolerance (Matos et al, 2001), probably responsible for rye maintenance in the regional agricultural system. Portugal has a wealth of rye germplasm with about 769 accessions conserved in several institutions (Bettencourt and Carnide, 1998); with many other local accessions yet to be preserved/identified.…”
Section: Introductionmentioning
confidence: 99%
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“…Rye proteins are important for rye bread-making quality and this can be attributed to significant in the content and structure of starch and proteins, which are influences by harvest year and genotype (Hansen et al, 2003(Hansen et al, , 2004Ribeiro et al, 2012). The nutritional and technological quality of grain is a complex variable related to the chemical composition of grain especially with the percentage representation of individual protein fraction which determines the direction of using grains (rye baking process, pharmaceutical use) (Chňapek et al, 2010).…”
Section: Resultsmentioning
confidence: 99%
“…The presence of two x-type and two y-type HMW-SS on SDS-PAGE gels for the individual rye cultivars has also been presented before in other works. 10,17,25,34 The occurrence of two to four inbred lines that were selected earlier from individual initial rye cultivars differing in their HMW-SS compositions confirmed the high level of rye polymorphism ( Table 1).…”
Section: Journal Of Agricultural and Food Chemistrymentioning
confidence: 90%