Monosomic analysis in bread wheat of resistance to cereal root eelworm

Euphytica ◽  
1974 ◽  
Vol 23 (3) ◽  
pp. 497-503 ◽  
Author(s):  
L. A. J. Slootmaker ◽  
W. Lange ◽  
G. Jochemsen ◽  
J. Schepers
Keyword(s):  
Bread Wheat ◽  
Monosomic Analysis ◽  
Cereal Root

Chromosomal location by F1 monosomic analysis of endosperm proteins in bread wheat

1988 ◽  
Vol 76 (6) ◽  
pp. 933-940 ◽  
Author(s):  
J. C. Sanz ◽  
G. Hueros ◽  
J. M. Gonzalez ◽  
N. Jouve
Keyword(s):  
Bread Wheat ◽  
Chromosomal Location ◽  
Monosomic Analysis ◽  
Endosperm Proteins

The transfer of leaf rust resistance from Triticum timopheevii to durum and bread wheat and the location of one gene on chromosome 1A

1998 ◽  
Vol 78 (4) ◽  
pp. 683-687 ◽  
Author(s):  
Dapeng Bai ◽  
D. R. Knott ◽  
Janice Zale
Keyword(s):  
Durum Wheat ◽  
Leaf Rust ◽  
Bread Wheat ◽  
Rust Resistance ◽  
Infection Type ◽  
Leaf Rust Resistance ◽  
Wheat Bread ◽  
Monosomic Analysis ◽  
Triticum Timopheevii ◽  
The One

Triticum timopheevii (Zhuk.) Zhuk. is noted for its resistance to diseases including leaf and stem rust of wheat. Only one gene (Lr18) for leaf rust resistance has been transferred from T. timopheevii to bread wheat. The objectives of this work were to study the inheritance of leaf rust resistance in five accessions of T. timopheevii and to transfer genes for resistance into durum and bread wheats. A diallel set of crosses was made among five T. timopheevii accessions that gave a fleck infection type with an isolate of leaf rust race CBB. None of the F2 populations of the 10 crosses segregated for resistance, indicating that the five accessions all had at least one gene for resistance in common. Several accessions were crossed and backcrossed twice to durum and to bread wheat. At least three genes for leaf rust resistance were transferred to durum wheat and one to bread wheat. The gene transferred to bread wheat and one of those transferred to durum wheat conditioned good resistance to a set of 10 diverse races of leaf rust. Resistance conditioned by all three genes was dominant in durum wheat but the one gene was recessive in bread wheat. Monosomic analysis of the bread wheat line showed that the gene is on chromosome 1A. It should be useful in breeding for leaf rust resistance in both durum and bread wheat. Key words: Triticum timopheevii, leaf rust resistance, durum wheat, bread wheat

The identification of a new gene for leaf pubescence introgressed into bread wheat from Triticum timopheevii Zhuk. and its manifestation in a different genotypic background

2021 ◽  
pp. 1-7
Author(s):  
A. V. Simonov ◽  
O. G. Smirnova ◽  
M. A. Genaev ◽  
T. A. Pshenichnikova
Keyword(s):  
Bread Wheat ◽  
Genetic Background ◽  
Higher Plants ◽  
Phenotypic Expression ◽  
Distal Region ◽  
Monosomic Analysis ◽  
Triticum Timopheevii ◽  
Leaf Pubescence ◽  
Wheat Gene ◽  
New Gene

Abstract Leaf pubescence is widespread among higher plants. In bread wheat, a relationship was found between this trait and the efficiency of photosynthetic processes and productivity. In this work, we established the chromosomal localization of the gene for leaf pubescence introgressed from Triticum timopheevii into a bread wheat line 821 and studied its expression in the genetic background of two wheat cultivars differing in genetic control and phenotypic expression of pubescence. To obtain quantitative characteristics of pubescence in cultivars and hybrid populations, the LHDetect2 program was used, which makes it possible to estimate the length and number of trichomes on a leaf fold. A genetic analysis showed the dominant inheritance of the gene. Monosomic analysis F2 was used to establish chromosome localization and investigate the expression of the gene in cultivars Saratovskaya S29 (S29) and Diamant 2 (Dm2). As a result, the gene Hltt, introgressed from T. timopheevii, was identified and localized in the distal region of the long arm of 5A chromosome for the first time. In both F2 populations, the gene reduced the density of trichomes and formed long trichomes, uncharacteristic for the two recipient cultivars S29 and Dm2. A larger number of long trichomes was formed in the genetic background of S29, which carry the bread wheat gene Hl1 and Hl3 for leaf pubescence, than in Dm2. Development of substitution and isogenic lines with the fragment of introgression carrying the gene Hltt will allow determining function and assessing the adaptive significance of the gene more precisely.

Monosomic analysis of genes for resistance against stem rust races in bread wheat

1981 ◽  
Vol 59 (5) ◽  
pp. 313-316 ◽  
Author(s):  
R. N. Sawhney ◽  
D. Singh ◽  
B. C. Joshi
Keyword(s):  
Bread Wheat ◽  
Stem Rust ◽  
Monosomic Analysis

Influence of yellow rust on quality indicators of bread wheat grain (t. Aestivuml.)

2019 ◽  
Vol 326 (1) ◽  
pp. 158-161
Author(s):  
G.M. Hasanova ◽  
◽  
Kh.N. Rustamov ◽  
Keyword(s):  
Bread Wheat ◽  
Quality Indicators ◽  
Yellow Rust ◽  
Wheat Grain

Assessment Of Heterosis For Morphological And Yield Donating Traits In Bread Wheat By Line X Tester Analysis.

2019 ◽  
Vol 02 (09) ◽  
pp. 23-39
Author(s):  
Syed Bilal Hussain ◽  
◽  
Sadaf Zahra ◽  
Ali Bakhsh ◽  
Muhammad Zubair ◽  
...  
Keyword(s):  
Bread Wheat
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