title: Grain quality characteristics and dough rheological properties in Langdon durum-wild emmer wheat chromosome substitution lines under nitrogen and water deficits.
abstract: BACKGROUND
  Wild emmer wheat could serve as a source of novel variation in grain quality and stress resistance for wheat breeding. A set of Triticum durum-T. dicoccoides chromosome substitution lines [LDN(DIC)] and the parental recipient cv. Langdon grown under contrasting water and nitrogen availability in the soil was examined in this study to identify differences in grain quality traits and dough rheological properties.
  
  
  RESULTS
  Significant genotypic variation was found among the materials for studied traits. This variation was also considerably affected by soil treatments and G × E interactions. The substitutions LDN(DIC-1A) and LDN(DIC-1B) showed separate differentiation in the composition of glutenin sub-units. The results indicated that primarily chromosome DIC-6B is stable source of an enhanced grain protein content and advantageous dough rheological properties. Similar features seem to be shown by the substitutions with the DIC-1A, DIC-2A and DIC-6A, but not under nitrogen shortage, when generally a considerable decrease was noticed in the range of genotypic variation in grain quality.
  
  
  CONCLUSIONS
  The substitution lines, particularly those with DIC-6B and DIC-6A and to a lesser extent DIC-1A and DIC-2A, were distinguished by advantageous grain quality traits, mixing properties and dough functionality and appear to be the most promising sources of innovative genes for wheat breeding. © 2016 Society of Chemical Industry.
authors: Institute of Plant Genetics, Polish Academy of Sciences, 34 Strzeszynska Str., PL, 60-479, Poznan, Poland.
authors: Bolesław P
authors: BP
authors: Salmanowicz
authors: Institute of Plant Genetics, Polish Academy of Sciences, 34 Strzeszynska Str., PL, 60-479, Poznan, Poland.
authors: Monika
authors: M
authors: Langner
authors: Faculty of Engineering Management, Poznañ University of Technology, 11 Strzelecka Str., PL, 60-965, Poznan, Poland.
authors: Beata
authors: B
authors: Mrugalska
authors: Institute of Plant Genetics, Polish Academy of Sciences, 34 Strzeszynska Str., PL, 60-479, Poznan, Poland.
authors: Dominika
authors: D
authors: Ratajczak
authors: Institute of Plant Genetics, Polish Academy of Sciences, 34 Strzeszynska Str., PL, 60-479, Poznan, Poland.
authors: Andrzej G
authors: AG
authors: Górny
mesh_terms: D001947:Breeding; D002874:Chromosome Mapping; D032461:Chromosomes, Plant / Q000235:genetics; D055864:Droughts; D005838:Genotype; D005983:Glutens / Q000032:analysis / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism*; D010641:Phenotype; D012212:Rheology; D012639:Seeds / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D014908:Triticum / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D014867:Water / Q000032:analysis / Q000378:metabolism*
chemical_list: D014867:Water; D005983:Glutens; C037302:glutenin; D009584:Nitrogen
keywords: Triticum dicoccoides; Triticum durum; drought stress; glutenins; nitrogen shortage