Genetic Control of the Cytologically Diploid Behaviour of Hexaploid Wheat

Nature ◽  
1958 ◽  
Vol 182 (4637) ◽  
pp. 713-715 ◽  
Author(s):  
RALPH RILEY ◽  
VICTOR CHAPMAN
Keyword(s):  
Genetic Control ◽  
Hexaploid Wheat

Genetic control of esterase-6 isozymes in hexaploid wheat and rye

Euphytica ◽  
1990 ◽  
Vol 47 (2) ◽  
pp. 165-169
Author(s):  
N. Jouve ◽  
F. Diaz
Keyword(s):  
Genetic Control ◽  
Hexaploid Wheat ◽  
Esterase 6

Genetic Control of Spikelet Number in Hexaploid Wheat 1

Crop Science ◽  
1977 ◽  
Vol 17 (2) ◽  
pp. 296-299 ◽  
Author(s):  
M. S. Rahman ◽  
G. M. Halloran ◽  
J. H. Wilson
Keyword(s):  
Genetic Control ◽  
Hexaploid Wheat ◽  
Spikelet Number

Genetic control of 1R nucleolus organizer region expression in the presence of wheat genomes

Genome ◽  
1990 ◽  
Vol 33 (5) ◽  
pp. 713-718 ◽  
Author(s):  
Rita Vieira ◽  
Álvaro Queiroz ◽  
Leonor Morais ◽  
Augusta Barão ◽  
T. Mello-Sampayo ◽  
...  
Keyword(s):  
Genetic Control ◽  
Hexaploid Wheat ◽  
Organizer Region ◽  
Nucleolus Organizer Region ◽  
Nucleolus Organizer ◽  
Rrna Genes ◽  
Root Tip ◽  
Region Gene ◽  
Nucleolar Dominance ◽  
Chromosome 1R

The expression of rRNA genes located in the nucleolar organizing region (NOR) present on the short arm of chromosome 1R from rye (Secale cereale L.) was examined in several hexaploid (Triticum aestivum L.) and tetraploid wheats (Triticum turgidum L.) containing the entire chromosome 1R from rye (disomic substitution 1B(1R)), its full haploid genome (hexaploid wheat–rye F1 hybrid), or only its short arm translocated to the long arms of wheat chromosomes from the homoeologous group 1 (disomic translocations 1AL/1RS, 1BL/1RS, or 1DL/1RS) or added to the complete hexaploid wheat genotype (monotelosomic addition 1RS). By silver staining and determination of the number of Ag-NORs and the average number of nucleoli per root-tip cell it became apparent that the expression of 1R NORs, in the presence of wheat genomes, depends on the absence of the long arm of rye chromosome 1R. In wheat-rye F1 hybrids and in hexaploid wheat with a disomic substitution 1B(1R), 1R NOR was morphologically absent, even when only one wheat major NOR was present, in contrast with its frequent expression in wheat–rye translocation or addition lines where only its short arm was added. It is suggested that wheat nucleolar dominance over rye as expressed by heterochromatic and silent NOR in 1RS is under a complex genetic control which involves interaction between 1RL and unidentified wheat genes.Key words: 1R nucleolus organizer region, gene activity, amphiplasty.

The genetic control of grain esterases in hexaploid wheat

1984 ◽  
Vol 68 (3) ◽  
pp. 219-226 ◽  
Author(s):  
C. C. Ainsworth ◽  
M. D. Gale ◽  
S. Baird
Keyword(s):  
Genetic Control ◽  
Hexaploid Wheat

scholarly journals Genetic screening for mutants with altered seminal root numbers in hexaploid wheat using a high-throughput root phenotyping platform

2018 ◽  
Author(s):  
Oluwaseyi Shorinola ◽  
Ryan Kaye ◽  
Guy Golan ◽  
Zvi Peleg ◽  
Stefan Kepinski ◽  
...  
Keyword(s):  
Genetic Control ◽  
High Throughput ◽  
Root Development ◽  
Hexaploid Wheat ◽  
Root Architecture ◽  
Agronomic Traits ◽  
Single Gene ◽  
Seminal Root ◽  
Root Number ◽  
Mutant Population

ABSTRACTRoots are the main channel for water and nutrient uptake in plants. Optimisation of root architecture provides a viable strategy to improve nutrient and water uptake efficiency and maintain crop productivity under water-limiting and nutrient-poor conditions. We know little, however, about the genetic control of root development in wheat, a crop supplying 20% of global calorie and protein intake. To improve our understanding of the genetic control of seminal root development in wheat, we conducted a high-throughput screen for variation in seminal root number using an exome-sequenced mutant population derived from the hexaploid wheat cultivar Cadenza. The screen identified seven independent mutants with homozygous and stably altered seminal root number phenotypes. One mutant, Cadenza0900, displays a recessive extra seminal root number phenotype, while six mutants (Cadenza0062, Cadenza0369, Cadenza0393, Cadenza0465, Cadenza0818 and Cadenza1273) show lower seminal root number phenotypes most likely originating from defects in the formation and activation of seminal root primordia. Segregation analysis in F2 populations suggest that the phenotype of Cadenza0900 is controlled by multiple loci whereas the Cadenza0062 phenotype fits a 3:1 mutant:wild-type segregation ratio characteristic of dominant single gene action. This work highlights the potential to use the sequenced wheat mutant population as a forward genetic resource to uncover novel variation in agronomic traits, such as seminal root architecture.

Genetic control of some polymeric glutenin fractions in hexaploid wheat (Triticum aestivum)

1996 ◽  
Vol 115 (6) ◽  
pp. 514-516
Author(s):  
L. El Haddad ◽  
A. Sarrafi ◽  
J. L. Fabre ◽  
T. Aussenac
Keyword(s):  
Triticum Aestivum ◽  
Genetic Control ◽  
Hexaploid Wheat

The genetic control of grain esterases in hexaploid wheat

1986 ◽  
Vol 72 (2) ◽  
pp. 219-225 ◽  
Author(s):  
C. C. Ainsworth ◽  
T. E. Miller ◽  
M. D. Gale
Keyword(s):  
Genetic Control ◽  
Hexaploid Wheat

Genetic control of shikimate dehydrogenase in hexaploid wheat

1983 ◽  
Vol 21 (9-10) ◽  
pp. 963-968 ◽  
Author(s):  
P. R. Neuman ◽  
G. E. Hart
Keyword(s):  
Genetic Control ◽  
Hexaploid Wheat ◽  
Shikimate Dehydrogenase
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