scholarly journals Photoperiodic sensitivity and Ppd-1 genotypes of bread wheat alternative varieties

2018 ◽  
Vol 23 ◽  
pp. 148-153
Author(s):  
V. I. Fait ◽  
O. Yu. Hubich ◽  
I. A. Balashova
Keyword(s):  
Bread Wheat ◽  
Dna Markers ◽  
View Point ◽  
Specific Primers ◽  
Wheat Varieties ◽  
Photoperiodic Sensitivity ◽  
F2 Hybrids

Aim. Study the reaction to photoperiod and identify Ppd-1 genotypes of modern alternative bread wheat varieties of various geographical origins. Methods. Plants growing under reduced and prolonged days, hybridological analysis of photoperiodic sensitivity of semi-diallelic F2 hybrids, calculations of average values, their errors and c2, multiplex STS-PCR with specific primers to the Ppd-D1 gene. Results. The phenotypic and genotype differences were detected, Ppd-1 genotypes of 10 alternative bread wheat varieties of different geographical origins were found. Conclusions. Afina, Palada, Solomia, Shestopalivka, Yara, Demir 2000, L897J23 varieties slowly or average react to reduce of day duration because of gene Ppd-D1a presence in their genotypes. Lastivka, Khutorianka, Zumoiarka varieties are highly photoperiodic sensitive genotypes and carriers of Ppd-1 genes recessive alleles only. From this view point, these three varieties correspond to the criteria of "typical alternative varieties". Keywords: wheat, alternative varieties, photoperiodic sensitivity, DNA markers, gene, Ppd-1.

scholarly journals Novel hypergravity treatment enhances root phenotype and positively influences physio-biochemical parameters in bread wheat (Triticum aestivum L.)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Basavalingayya K. Swamy ◽  
Ravikumar Hosamani ◽  
Malarvizhi Sathasivam ◽  
S. S. Chandrashekhar ◽  
Uday G. Reddy ◽  
...  
Keyword(s):  
Bread Wheat ◽  
Vegetative Growth ◽  
Growth Parameters ◽  
Phenotypic Variability ◽  
Crop Improvement ◽  
Triticum Aestivum L ◽  
Hormonal Changes ◽  
Wheat Varieties ◽  
Living Organisms ◽  
Physiological Benefits

AbstractHypergravity—an evolutionarily novel environment has been exploited to comprehend the response of living organisms including plants in the context of extra-terrestrial applications. Recently, researchers have shown that hypergravity induces desired phenotypic variability in seedlings. In the present study, we tested the utility of hypergravity as a novel tool in inducing reliable phenotype/s for potential terrestrial crop improvement applications. To investigate, bread wheat seeds (UAS-375 genotype) were subjected to hypergravity treatment (10×g for 12, and 24 h), and evaluated for seedling vigor and plant growth parameters in both laboratory and greenhouse conditions. It was also attempted to elucidate the associated biochemical and hormonal changes at different stages of vegetative growth. Resultant data revealed that hypergravity treatment (10×g for 12 h) significantly enhanced root length, root volume, and root biomass in response to hypergravity. The robust seedling growth phenotype may be attributed to increased alpha-amylase and TDH enzyme activities observed in seeds treated with hypergravity. Elevated total chlorophyll content and Rubisco (55 kDa) protein expression across different stages of vegetative growth in response to hypergravity may impart physiological benefits to wheat growth. Further, hypergravity elicited robust endogenous phytohormones dynamics in root signifying altered phenotype/s. Collectively, this study for the first time describes the utility of hypergravity as a novel tool in inducing reliable root phenotype that could be potentially exploited for improving wheat varieties for better water usage management.

Evaluation of genetic diversity among bread wheat varieties and landraces of Pakistan by SSR markers

2009 ◽  
Vol 37 (4) ◽  
pp. 489-498 ◽  
Author(s):  
N. Iqbal ◽  
A. Tabasum ◽  
H. Sayed ◽  
A. Hameed
Keyword(s):  
Genetic Diversity ◽  
Bread Wheat ◽  
Ssr Markers ◽  
Wheat Varieties

A classification of the NORIN 10 and Tom Thumb dwarfing genes in British, Mexican, Indian and other hexaploid bread wheat varieties

Euphytica ◽  
1981 ◽  
Vol 30 (2) ◽  
pp. 355-361 ◽  
Author(s):  
Michael D. Gale ◽  
Geraldine A. Marshall ◽  
M. V. Rao
Keyword(s):  
Bread Wheat ◽  
Dwarfing Genes ◽  
Wheat Varieties

scholarly journals Diversity of Resistance Gene Analogues in Rust Resistance and Susceptible Bread Wheat Varieties

2019 ◽  
Vol 5 (2) ◽  
pp. 29-40
Author(s):  
Faranak Khanmakoo ◽  
Seyed Abolghasem Mohammadi ◽  
Robab Salami ◽  
Saeed Aharizad ◽  
◽  
...  
Keyword(s):  
Resistance Gene ◽  
Bread Wheat ◽  
Rust Resistance ◽  
Wheat Varieties

IDENTIFICATION OF SOURCES OF STUNTING AND PRECOCITY OF SOFT WINTER WHEAT, USING CLASSICAL ASSESSMENT METHODS AND DNA MARKERS

2021 ◽  
Author(s):  
M.E. Mukhordova ◽  
Keyword(s):  
Winter Wheat ◽  
Dna Markers ◽  
Assessment Methods ◽  
Wheat Varieties ◽  
New Variety ◽  
Selection For ◽  
Soft Winter Wheat

The article presents the results of the identification of short-stemmed and photoperiod genes in the genotype of winter wheat samples, which are used in the selection for crossing pairs of wheat varieties in the development of a new variety.

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