MANIFESTATION OF PRODUCTIVITY TRAITS IN Triticum aestivum/T. timopheevii INTROGRESSION LINES IN DIFFERENT ENVIRONMENTAL CONDITIONS

2018 ◽  
Vol 53 (5) ◽  
pp. 916-926
Author(s):  
S.I. Vakula ◽  
◽  
O.A. Orlovskaya ◽  
L.V. Khotyleva ◽  
I.N. Leonova ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Environmental Conditions ◽  
Introgression Lines

scholarly journals Triticum aestivum × Triticum timopheevii introgression lines as a source of pathogen resistance genes

2011 ◽  
Vol 47 (Special Issue) ◽  
pp. S49-S55 ◽  
Author(s):  
I.N. Leonova ◽  
E.B. Budashkina ◽  
N.P. Kalinina ◽  
M.S. Röder ◽  
A. Börner ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Microsatellite Markers ◽  
Molecular Mapping ◽  
Tetraploid Wheat ◽  
Leaf Rust Resistance ◽  
Pathogen Resistance ◽  
Introgression Lines ◽  
Phenotypic Variance ◽  
Triticum Timopheevii ◽  
Loose Smut

A collection of introgression lines was obtained from crosses of common wheat (Triticum aestivum L.) cultivars with tetraploid wheat Triticum timopheevii (Zhuk.). Evaluation of resistance to fungal diseases revealed the lines with resistance to leaf and stem rusts, powdery mildew, spot blotch, and loose smut, the most widespread in Siberian region of Russia. Localization of the T. timopheevii genome fragments by means of microsatellite markers determined higher frequency of substitutions and translocations on chromosomes 1А, 2A, 2B, 5A, 5B and 6B. Molecular mapping of the loci determining leaf rust resistance revealed two independent loci on chromosomes 5B and 2A. The major locus on 5BS.5BL-5GL translocated chromosome accounting 64% of the phenotypic variance of the trait was found to be closely linked to microsatellite markers Xgwm814 and Xgwm1257. The other, minor locus, controlling 11% of the trait was mapped next to Xgwm312 on chromosome 2A. Microsatellite markers located near these genes may be used for controlling the transfer of valuable traits in new wheat cultivars.

scholarly journals Development of a Set of Triticum Aestivum-Aegilops Tauschii Introgression Lines

Hereditas ◽  
2004 ◽  
Vol 135 (2-3) ◽  
pp. 139-143 ◽  
Author(s):  
E. G. Pestsova ◽  
A. Börner ◽  
M. S. Röder
Keyword(s):  
Triticum Aestivum ◽  
Aegilops Tauschii ◽  
Introgression Lines

scholarly journals Characterization of Agronomical and Quality Traits of Winter Wheat (Triticum aestivum L.) for Fusarium Head Blight Pressure in Different Environments

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 213
Author(s):  
Valentina Spanic ◽  
Josipa Cosic ◽  
Zvonimir Zdunic ◽  
Georg Drezner
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Grain Yield ◽  
Fusarium Head Blight ◽  
Total Variation ◽  
Environmental Conditions ◽  
Triticum Aestivum L ◽  
Test Weight ◽  
Head Blight ◽  
Wheat Varieties

For food security, it is essential to identify stable, high-yielding wheat varieties with lower disease severity. This is particularly important due to climate change, which results in pressure due to the increasing occurrence of Fusarium head blight (FHB). The objective of this study was to evaluate the stability of winter wheat (Triticum aestivum L.) grain yield under different environmental conditions. Twenty-five winter wheat varieties were evaluated under two treatments (naturally-disease infected (T1) and FHB artificial stress (T2)) during two growing seasons (2018–2019 to 2019–2020) in Osijek and in 2019–2020 in Tovarnik. The interaction between varieties and different environments for grain yield was described using the additive main-effects and multiplicative interaction (AMMI) effects model. The Kraljica and Fifi varieties were located near the origin of the biplot, thus indicating non-sensitivity to different environmental conditions. Principal component analysis (PCA) was used to understand the trait and environmental relationships. PC1 alone contributed 42.5% of the total variation, which was mainly due to grain yield, 1000 kernel weight and test weight in that respective order. PC2 contributed 21.1% of the total variation mainly through the total sedimentation value, test weight, wet gluten and protein content ratio (VG/P) and wet gluten content, in descending order.

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