scholarly journals Mining the Watkins collection of wheat landraces for novel sources of eyespot resistance

2014 ◽  
Vol 63 (6) ◽  
pp. 1241-1250 ◽  
Author(s):  
C. Burt ◽  
L. L. Griffe ◽  
A. P. Ridolfini ◽  
S. Orford ◽  
S. Griffiths ◽  
...  
Keyword(s):  
Eyespot Resistance ◽  
Wheat Landraces

Genetic Diversity of High-Molecular-Weight Glutenin Subunit Composition in Chinese Wheat Landraces

2013 ◽  
Vol 38 (7) ◽  
pp. 1205-1211
Author(s):  
Xin XU ◽  
Xiao-Jun LI ◽  
Ling-Li ZHANG ◽  
Xiu-Quan LI ◽  
Xin-Ming YANG ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Molecular Weight ◽  
High Molecular Weight ◽  
Glutenin Subunit ◽  
Subunit Composition ◽  
Wheat Landraces ◽  
Chinese Wheat

The Effect of Ploidy on the Concentration of Soluble Sugars in Wheat Seeds– Exploring the Metabolome of Afghan Wheat Landraces

2018 ◽  
Vol 6 (2) ◽  
pp. 140-146
Author(s):  
Fredd Vergara ◽  
Amiu Shino ◽  
Bart Rymen ◽  
Jun Kikuchi
Keyword(s):  
Soluble Sugars ◽  
Wheat Landraces ◽  
Wheat Seeds

scholarly journals Unlocking the Patterns of the Tunisian Durum Wheat Landraces Genetic Structure Based on Phenotypic Characterization in Relation to Farmer’s Vernacular Name

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 634
Author(s):  
Cyrine Robbana ◽  
Zakaria Kehel ◽  
Karim Ammar ◽  
Carlos Guzmán ◽  
M’Barek Ben Naceur ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Durum Wheat ◽  
Smallholder Farmers ◽  
Phenotypic Variability ◽  
Phenotypic Characterization ◽  
Ecological Niches ◽  
Dry Conditions ◽  
New Gene ◽  
Wheat Landraces ◽  
Durum Wheat Landraces

During the 1970s, Tunisian durum wheat landraces were replaced progressively by modern cultivars. These landraces are nowadays maintained by smallholder farmers in some ecological niches and are threatened gradually by extinction resulting in the narrowing of the genetic diversity. This study aims to investigate patterns of phenotypic variability using twelve quantitative traits in a panel of 189 durum wheat landraces and seven checks, based on farmer’s population name attribution and genetic structure. Our results showed high phenotypic variability among and within landraces and checks for ten out of twelve studied traits. The principal components analysis showed similar grouping using farmers name attribution and genetic structure using K = 6. These results confirmed the identification of a new gene pool in the oases of Tunisia, represented by the sub-population Jenah Zarzoura and the robustness and high relationships between phenotypic and genome-wide genetic structure using DArTseq method. These findings will enhance the conservation efforts of these landraces and their use in breeding efforts at national and international levels to adapt to dry conditions.

Mapping a gene conferring resistance to Pseudocercosporella herpotrichoides on chromosome 4V of Dasypyrum villosum in a wheat background

Genome ◽  
1998 ◽  
Vol 41 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Ahmet Yildirim ◽  
Stephen S Jones ◽  
Timothy D Murray
Keyword(s):  
Distal Part ◽  
Dominant Gene ◽  
Rflp Markers ◽  
Addition Line ◽  
Dasypyrum Villosum ◽  
Pseudocercosporella Herpotrichoides ◽  
Eyespot Resistance ◽  
Double Recombination ◽  
Simultaneous Selection ◽  
Selection For

The objectives of this study were to map and tag the previously undescribed eyespot resistance gene PchDv on chromosome 4V of Dasypyrum villosum in a wheat background. The 82 F2 plants used for mapping were produced from a cross between a susceptible\i wheat 'Yangmai-5' (4V(4D)) substitution line and a resistant wheat 'Chinese Spring' disomic addition line of chromosome 4V of D. villosum. Segregation for resistance and susceptibility among F2 plants was 3:1, indicating that resistance was controlled by a single dominant gene. PchDv mapped to the distal part of chromosome 4V and was bracketed by two RFLP markers, Xcdo949 and Xbcd588, in a 33-cM interval. This distance could not be reduced, owing to a lack of polymorphic loci in this region. Theoretically, double recombination in this region occurs in 3.3% of the individuals; therefore, 96.7% of the selected genotypes would have PchDv, with simultaneous selection for both flanking markers. Double recombination between the flanking markers was observed in 2 out of 82 (2.4%) F2 individuals.

Grain mineral density of bread and durum wheat landraces from geochemically diverse native soils

2018 ◽  
Vol 69 (4) ◽  
pp. 335 ◽  
Author(s):  
José Francisco Vázquez ◽  
Efraín Antonio Chacón ◽  
José María Carrillo ◽  
Elena Benavente
Keyword(s):  
Durum Wheat ◽  
Triticum Aestivum L ◽  
Field Trials ◽  
Mineral Elements ◽  
Small Scale ◽  
Mineral Density ◽  
Native Soil ◽  
Wide Range ◽  
Grain Zinc ◽  
Wheat Landraces

Future progress on the creation of wheat cultivars with high grain zinc (Zn) and iron (Fe) mineral density will depend on both the availability of suitable donor germplasm and the identification of genes or quantitative trait loci contributing to increase the accumulation of mineral elements in the wheat kernels. Multi-environment field trials were conducted to evaluate the grain Zn, Fe and protein concentration of 32 bread wheat (Triticum aestivum L.) and 20 durum wheat (T. turgidum L. var. durum) landraces locally adapted to soils covering a wide range of pH values and mineral composition. These landraces were selected after a preliminary, small-scale field trial that had analysed 425 Spanish local varieties. Analyses of variance demonstrated a significant effect of genotype on grain composition, and 16 wheat landraces with elevated grain Zn and/or Fe density across the environments were identified. These landraces rich in grain minerals represent valuable primary gene-pool parents for wheat biofortification. No pattern of native soil geochemical characteristics that could help to predict the success in collecting mineral-dense genotypes in a given area was found. Mapping populations derived from some pairs of grain-mineral-rich and -poor genotypes characterised in the study may facilitate the development of molecular markers to assist the selection of superior wheat genotypes.

scholarly journals Wheat in the Mediterranean revisited – tetraploid wheat landraces assessed with elite bread wheat Single Nucleotide Polymorphism markers

BMC Genetics ◽  
2014 ◽  
Vol 15 (1) ◽  
pp. 54 ◽  
Author(s):  
Hugo R Oliveira ◽  
Jenny Hagenblad ◽  
Matti W Leino ◽  
Fiona J Leigh ◽  
Diane L Lister ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Bread Wheat ◽  
Tetraploid Wheat ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Wheat Landraces ◽  
The Mediterranean

scholarly journals Breeding potential of durum wheat landraces from Jordan

Hereditas ◽  
2008 ◽  
Vol 116 (3) ◽  
pp. 305-309
Author(s):  
A. A. JARADAT
Keyword(s):  
Durum Wheat ◽  
Breeding Potential ◽  
Wheat Landraces ◽  
Durum Wheat Landraces

Diversity of Protein Quality Traits in Iranian Hexaploid Wheat Landraces

2003 ◽  
Vol 31 (1-2) ◽  
pp. 193-200
Author(s):  
Monisha Bhattacharya ◽  
Jamshid Jafari-Shabestari ◽  
Calvin Qualset ◽  
Harold Corke
Keyword(s):  
Hexaploid Wheat ◽  
Protein Quality ◽  
Quality Traits ◽  
Wheat Landraces

scholarly journals Analysis of grain elements and identification of best genotypes for Fe and P in Afghan wheat landraces

2016 ◽  
Vol 66 (5) ◽  
pp. 676-682 ◽  
Author(s):  
Youichi Kondou ◽  
Alagu Manickavelu ◽  
Kenji Komatsu ◽  
Mujiburahman Arifi ◽  
Mika Kawashima ◽  
...  
Keyword(s):  
Wheat Landraces
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