Comparative analysis of the genetic diversity dynamics at gliadin loci in the winter common wheat Triticum aestivum L. cultivars developed in Serbia and Italy over 40 years of scientific breeding

Novoselskaya-Dragovich, A. Yu.; Фисенко, А. В.; Imasheva, Alexandra G.; Pukhalskiy, V. A.

doi:10.1134/s1022795407110051

Cited by 15 publications

(7 citation statements)

References 13 publications

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“… 2007 ; Reif et al 2005a , b ). In cases where the reported diversity measure was based on more than one decade, they were assumed to be constant for these decades (Figliuolo et al 2007 ; Mantegazza et al 2008 ; Nersting et al 2006 ; Novoselskaya-Dragovich et al 2007 ; Reif et al 2005a ). In the subsequent meta analysis these values are used as relative to the other values of pooled decades in the same study.…”

Section: Methodsmentioning

confidence: 99%

“…Also in a paper on wheat (Novoselskaya-Dragovich et al 2007) two different regions were studied, but as the Italian data originated from another paper (Metakovsky et al 1994) which had already been included in the meta analysis, these were disregarded. For papers in which in addition to an overall analysis, also an analysis split into regions was done, only the results from the overall analysis were used in the meta analysis (e.g.…”

Section: Methodsmentioning

confidence: 99%

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Genetic diversity trends in twentieth century crop cultivars: a meta analysis

et al. 2010

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In recent years, an increasing number of papers has been published on the genetic diversity trends in crop cultivars released in the last century using a variety of molecular techniques. No clear general trends in diversity have emerged from these studies. Meta analytical techniques, using a study weight adapted for use with diversity indices, were applied to analyze these studies. In the meta analysis, 44 published papers were used, addressing diversity trends in released crop varieties in the twentieth century for eight different field crops, wheat being the most represented. The meta analysis demonstrated that overall in the long run no substantial reduction in the regional diversity of crop varieties released by plant breeders has taken place. A significant reduction of 6% in diversity in the 1960s as compared with the diversity in the 1950s was observed. Indications are that after the 1960s and 1970s breeders have been able to again increase the diversity in released varieties. Thus, a gradual narrowing of the genetic base of the varieties released by breeders could not be observed. Separate analyses for wheat and the group of other field crops and separate analyses on the basis of regions all showed similar trends in diversity.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Genetic diversity trends in twentieth century crop cultivars: a meta analysis

et al. 2010

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“…Such biotypes also differ in their gliadin spectra Metakovsky et al 2000;Kudryavtsev 2006). The gliadin genetics has been extensively studied in common (Metakovsky et al 1990;Metakovsky 1991;Metakovsky et al 1994;Metakovsky and Branlard 1998;Novoselskaya-Dragovich et al 2007) and durum Kudryavtsev et al 1996;Letta et al 2005;Aguiriano et al 2006;Melnikova and Kudryavtsev 2009) wheat. The studies have shown that the geographical distribution of gliadin alleles is no uniform through the world; i.e., certain alleles are rare or absent in some countries and occur at high frequencies in some others.…”

Section: Introductionmentioning

confidence: 98%

Gliadins of Bulgarian durum wheat (Triticum durum Desf.) landraces: genetic diversity and geographical distribution

Melnikova

Ganeva

Popova

et al. 2009

Genet Resour Crop Evol

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The polymorphism of gliadins was studied in 98 Bulgarian durum wheat (Triticum durum Desf.) landraces and classified according to the existing catalogues of blocks of gliadin components. In total, 31 alleles, including 12 new ones, were revealed for five gliadin-coding loci. Nine allele families, which included several alleles coding similar blocks differed only by minor components, were found. The gliadin loci had a high genetic diversity (H = 0.70), and Gli-A2 d was the most polymorphic locus. Significant differences in allele distribution were observed through the Bulgarian region under study. The results made it possible to explain the distribution by historical factors. Presumably, the genetic material flew into the country via two different ways and different durum wheat subgroups contributed to the formation of Bulgarian landraces. The landraces were a result of long-term selection and, probably, had a close association with the history of the human populations of the region.

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“…The most rarely QGpc occur in the chromosomes of the first and third groups [26,44]. Despite the diversity of cultivars and lines by glutenins [54] and gliadins [6,55,56], QGpc are rarely found in short arms of chromosomes of group 1(1A, 1B, 1D), where such loci as Glu 3, Gli 1 and Gli 3, controlling synthesis of glutenins and gliadins, respectively, are located. Gli A1 on chromosome A1 of durum wheat is linked with QGpc.usw A1QTL, and QGpc.usw B2 (on chromosome 1B) may be linked with loci Gli B1/Glu B3 [50].…”

Section: Molecular Markersmentioning

confidence: 99%

Genetic architecture of grain protein content in wheat

Krupnov

Krupnova

2012

Russ J Genet

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Studies on identification and localization of quantitative traits for grain protein content (QGpc loci) on chromosomes in Triticum aestivum and Triticum durum are reviewed. Association of QGpc with vari ous traits of morphology, physiology, adaptation and tolerance to abiotic and biotic stress is shown. Genetic and environmental QGpc contexts that should be taken into account when using molecular markers in breed ing for the grain protein content are considered.

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Comparative analysis of the genetic diversity dynamics at gliadin loci in the winter common wheat Triticum aestivum L. cultivars developed in Serbia and Italy over 40 years of scientific breeding

Cited by 15 publications

References 13 publications

Genetic diversity trends in twentieth century crop cultivars: a meta analysis

Genetic diversity trends in twentieth century crop cultivars: a meta analysis

Gliadins of Bulgarian durum wheat (Triticum durum Desf.) landraces: genetic diversity and geographical distribution

Genetic architecture of grain protein content in wheat

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