FREQUENCY OF MICRONUCLEI IN POLLEN QUARTETS OF COMMON WHEAT MONOSOMICS

1952 ◽  
Vol 30 (4) ◽  
pp. 371-378 ◽  
Author(s):  
J. W. Morrison ◽  
John Unrau
Keyword(s):  
Cell Wall ◽  
Common Wheat ◽  
Chinese Spring ◽  
Wheat Variety ◽  
Early Developmental Stage ◽  
D Genome ◽  
Distinct Cell ◽  
The Common ◽  
Early Developmental ◽  
Common Wheat Variety

The frequency with which 20 different monosomes of the common wheat variety, Chinese Spring, formed micronuclei in pollen quartets was determined. It was found that unless the study was made at an early developmental stage characterized by a distinct cell wall surrounding the quartets, the counts were unreliable, because some micronuclei were lost. The frequency of micronucleus formation was similar for anthers of a floret, florets of a spike, and plants of a monosome. Among the monosomes studied, there were three groups of three and four of two in which the total frequency of quartets with micronuclei, and the distribution of numbers of micronuclei per quartet, were strikingly similar. In the case of the groups of three, two monosomes were from the A and B genomes while one was from the D genome. This is interpreted as evidence of homoeology of chromosomes of a group and also that such chromosomes have undergone less change than those that do not form such series.

FURTHER EVIDENCE OF RESISTANCE IN BERBERIS VULGARIS TO RACE 15B OF PUCCINIA GRAMINIS f. sp. TRITICI

1958 ◽  
Vol 36 (3) ◽  
pp. 351-355 ◽  
Author(s):  
G. J. Green ◽  
T. Johnson
Keyword(s):  
Common Wheat ◽  
Stem Rust ◽  
Wheat Variety ◽  
Circumstantial Evidence ◽  
Puccinia Graminis ◽  
Wheat Stem Rust ◽  
Berberis Vulgaris ◽  
Pure Cultures ◽  
The Common ◽  
Common Wheat Variety

Plants of common barberry (Berberis vulgaris L.) were inoculated to determine their reaction to race 15B of wheat stem rust (Puccinia graminis Pers. f. sp. tritici Erikss. & Henn.). Only resistant-type infections occurred on plants inoculated with two pure cultures of race 15B-4 (Can.). Strong circumstantial evidence for the resistance of common barberry to race 15B was obtained from inoculations with sporidia from teliospores produced in the field. Sporidia from teliospores collected from the emmer wheat variety Vernal, which is selective for race 15B, produced only infections of a resistant type, and those from the common wheat variety Lee, also selective for 15B, caused both resistant and susceptible types of infections. Transfer of aeciospores to wheat from the susceptible type demonstrated that 15B was not present. Sporidia from teliospores on the varieties Reliance and Mentana, which are not selective for this race, caused infections of a susceptible type. Resistant-type and susceptible-type infections appeared when barberry leaves were infected with races 29 and 48A.

scholarly journals Proteomic analysis of low-molecular-weight glutenin subunits and relationship with their genes in a common wheat variety

3 Biotech ◽  
2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Hye-Rang Beom ◽  
Jin Sun Kim ◽  
You-Ran Jang ◽  
Sun-Hyung Lim ◽  
Chang-Kug Kim ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Common Wheat ◽  
Proteomic Analysis ◽  
Wheat Variety ◽  
Low Molecular Weight ◽  
Glutenin Subunits ◽  
Common Wheat Variety

Promising spring common wheat variety Kinelskaya 2020

2021 ◽  
Vol 35 (7) ◽  
pp. 29-34
Author(s):  
E. A. Demina ◽  
A. I. Kincharov ◽  
T. Yu. Taranova ◽  
O. S. Mullayanova ◽  
K. Yu. Chekmasova
Keyword(s):  
Common Wheat ◽  
Wheat Variety ◽  
Common Wheat Variety ◽  
Spring Common Wheat

scholarly journals Genotypic variability for salt stress tolerance among wild and cultivated wheat germplasms at an early development stage

2019 ◽  
Vol 4 (1) ◽  
pp. 375-380
Author(s):  
Imen Klay ◽  
Leila Riahi ◽  
Hajer Slim Amara ◽  
Abderrazak Daaloul
Keyword(s):  
Salt Stress ◽  
Stress Tolerance ◽  
Common Wheat ◽  
Triticum Turgidum ◽  
Wheat Variety ◽  
Development Stage ◽  
Salt Stress Tolerance ◽  
Wheat Varieties ◽  
The Common ◽  
Photosynthetic Traits

AbstractThis study was conducted to evaluate the variability of salt tolerance potentials among nine wheat genotypes representing wild and cultivated species namely Triticum turgidum subsp. durum, Triticum aestivum and Aegilops geniculata. Ionomic and photosynthetic traits were used for the screening of the studied samples when faced with four salinity levels of NaCl (0, 50, 100 and 150 mM) under green house conditions at the seedling stage. The investigated genotypes exhibited different levels of salt stress tolerance. Ionomic and photosynthetic traits underline the distinctiveness of the common wheat varieties which highlighted particular performances under salt stress conditions and showed higher tolerance potentials among the studied genotypes. Interestingly, the Vaga variety showed more ability to maintain higher K+/Na+ ratios and Pq coefficients compared with the control conditions and stable Fv/F0 and Fv/Fm ratios. Stable behaviour was exhibited by wild Aegilops accessions while durum wheat varieties have been shown to be more sensitive to salt stress. Further investigations were required for the common wheat variety Vaga, which could be useful for successful breeding and biotechnological improvement strategies concerning wheat species.

scholarly journals Empirical verification of heterogeneous DNA fragments generated from wheat genome-specific SSR primers

2008 ◽  
Vol 88 (6) ◽  
pp. 1065-1071 ◽  
Author(s):  
Qijiao Chen ◽  
Lianquan Zhang ◽  
Zhongwei Yuan ◽  
Zehong Yan ◽  
Youliang Zheng ◽  
...  
Keyword(s):  
Common Wheat ◽  
Hexaploid Wheat ◽  
Chinese Spring ◽  
Triticum Turgidum ◽  
Sequence Data ◽  
Aegilops Tauschii ◽  
Single Locus ◽  
Synthetic Hexaploid Wheat ◽  
D Genome ◽  
Synthetic Hexaploid

Due to the high polymorphisms between synthetic hexaploid wheat (SHW) and common wheat, SHW has been widely used in genetic studies. The transferability of simple sequence repeats (SSR) among common wheat and its donor species, Triticum turgidum and Aegilops tauschii, and their SHW suggested the possibility that some SSRs, specific for a single locus in common wheat, might appear in two or more loci in SHWs. This is an important genetic issue when using synthetic hexaploid wheat population and SSR for mapping. However, it is largely ignored and never empirically well verified. The present study addressed this issue by using the well-studied SSR marker Xgwm261 as an example. The Xgwm261 produced a 192 bp fragment specific to chromosome 2D in common wheat Chinese Spring, but generated a 176 bp fragment in the D genome of Ae. tauschii AS60. Chromosomal location and DNA sequence data revealed that the176 bp fragment also donated by 2B chromosome of durum wheat Langdon. These results indicated that although a single 176 bp fragment was appeared in synthetic hexaploid wheat Syn-SAU-5 between Langdon and AS60, the fragment contained two different loci, one from chromosome 2D of AS60 and the other from 2B of Langdon which were confirmed by the segregating analysis of SSR Xgwm261 in 185 plants from a F2 population between Syn-SAU-5 and Chinese Spring. If Xgwm261 in Syn-SAU-5 was considered as a single locus in genetic analysis, distorted segregation or incorrect conclusions would be yielded. A proposed strategy to avoid this problem is to include SHW’s parental T. turgidum and Ae. tauschii in SSR analysis as control for polymorphism detection. Key words: Synthetic hexaploid wheat, microsatellite, segregation distortion, Xgwm261, transferability

scholarly journals Identification and Breeding Significance of Translocated Chromosomes in a Japanese Common Wheat Variety Eshimashinriki.

1994 ◽  
Vol 44 (4) ◽  
pp. 391-396
Author(s):  
Abdelbagi Mukhtar Ali ◽  
Noboru Nakata ◽  
Motonori Tomita ◽  
Yoshimasa Yasumuro
Keyword(s):  
Common Wheat ◽  
Wheat Variety ◽  
Common Wheat Variety

CYTOGENETICS OF SOLID STEM IN COMMON WHEAT: II. STEM SOLIDNESS OF MONOSOMIC LINES OF THE VARIETY S-615

1959 ◽  
Vol 37 (3) ◽  
pp. 365-378 ◽  
Author(s):  
Ruby I. Larson ◽  
M. D. MacDonald
Keyword(s):  
Common Wheat ◽  
Chinese Spring ◽  
Homoeologous Group ◽  
D Genome ◽  
Stem Solidness ◽  
Group 3 ◽  
Solid Stem ◽  
Group 5

Lines of a variety of common wheat, S-615, monosomic for chromosomes III and XVI of homoeologous group 3 had culms less solid in the top internode than normal S-615. Monosomics of homoeologous group 5, namely, V, IX, and XVIII, were less solid in the bottom four internodes than S-615. These five chromosomes carry genes for solid stem in this variety. Monosomics XIX, XX, and XXI, the D-genome chromosomes of homoeologous groups 6, 2, and 7 respectively, were more solid than the normal check in both top and lower internodes, indicating that the missing chromosomes carry genes for hollow stem. Chromosome XIII, a homoeologue of XX, which in Chinese Spring has a gene for hollow stem, does not affect the amount of pith in the culm of S-615.The concept of the culm phenotype in a given environment resulting from an interaction of genes promoting pith development and those opposing it makes it possible to reconcile results of genetic experiments on solid stem in wheat that previously appeared contradictory.

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