RFLP-based genetic maps of the homoeologous group 5 chromosomes of bread wheat (Triticum aestivum L.)

1993 ◽  
Vol 87 (1-2) ◽  
pp. 70-74 ◽  
Author(s):  
D. X. Xie ◽  
K. M. Devos ◽  
G. Moore ◽  
M. D. Gale
Keyword(s):  
Triticum Aestivum ◽  
Bread Wheat ◽  
Triticum Aestivum L ◽  
Genetic Maps ◽  
Homoeologous Group ◽  
Group 5

Construction of comparative genetic maps of two 4Bs.4Bl-5Rl translocations in bread wheat (Triticum aestivum L.)

Genome ◽  
2006 ◽  
Vol 49 (7) ◽  
pp. 729-734 ◽  
Author(s):  
R C Leach ◽  
I S Dundas ◽  
A Houben
Keyword(s):  
Triticum Aestivum ◽  
Bread Wheat ◽  
Rflp Analysis ◽  
Triticum Aestivum L ◽  
Genetic Maps ◽  
Homoeologous Group ◽  
Group 4 ◽  
Translocation Breakpoints ◽  
Group 5 ◽  
Wheat Lines

The physical length of the rye segment of a 4BS.4BL–5RL translocation derived from the Cornell Wheat Selection 82a1-2-4-7 in a Triticum aestivum 'Chinese Spring' background was measured using genomic in situ hybridization (GISH) and found to be 16% of the long arm. The size of this translocation was similar to previously published GISH measurements of another 4BS.4BL–5RL translocation in a Triticum aestivum 'Viking' wheat background. Molecular maps of both 4BS.4BL–5RL translocations for 2 different wheat backgrounds were developed using RFLP analysis. The locations of the translocation breakpoints of the 2 4BS.4BL–5RL translocations were similar even though they arose in different populations. This suggests a unique property of the region at or near the translocation breakpoint that could be associated with their similarity and spontaneous formation. These segments of rye chromosome 5 also contain a gene for copper efficiency that improves the wheat's ability to cope with low-copper soils. Genetic markers in these maps can also be used to screen for copper efficiency in bread wheat lines derived from the Cornell Wheat Selection 82a1 2-4-7.Key words: Triticum aestivum, wheat–rye translocation, homoeologous group 4, homoeologous group 5, GISH, comparative map, copper efficiency, hairy peduncle.

Molecular genetic maps of the group 6 chromosomes of hexaploid wheat (Triticum aestivum L. em. Thell.)

Genome ◽  
1996 ◽  
Vol 39 (2) ◽  
pp. 359-366 ◽  
Author(s):  
Celso L. Marino ◽  
Neal A. Tuleen ◽  
Gary E. Hart ◽  
James C. Nelson ◽  
Mark E. Sorrells ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Hexaploid Wheat ◽  
Tetraploid Wheat ◽  
Triticum Aestivum L ◽  
Genetic Maps ◽  
Wheat Bread ◽  
Linkage Maps ◽  
Homoeologous Group ◽  
Group 6 ◽  
Orthologous Loci

Restriction fragment length polymorphism (RFLP) maps of chromosomes 6A, 6B, and 6D of hexaploid wheat (Triticum aestivum L. em. Thell.) have been produced. They were constructed using a population of F7–8 recombinant inbred lines derived from a synthetic wheat × bread wheat cross. The maps consist of 74 markers assigned to map positions at a LOD ≥ 3 (29 markers assigned to 6A, 24 to 6B, and 21 to 6D) and 2 markers assigned to 6D ordered at a LOD of 2.7. Another 78 markers were assigned to intervals on the maps. The maps of 6A, 6B, and 6D span 178, 132, and 206 cM, respectively. Twenty-one clones detected orthologous loci in two homoeologues and 3 detected an orthologous locus in each chromosome. Orthologous loci are located at intervals of from 1.5 to 26 cM throughout 70% of the length of the linkage maps. Within this portion of the maps, colinearity (homosequentiality) among the three homoeologues is strongly indicated. The remainder of the linkage maps consists of three segments ranging in length from 47 to 60 cM. Colinearity among these chromosomes and other Triticeae homoeologous group 6 chromosomes is indicated and a consensus RFLP map derived from maps of the homoeologous group 6 chromosomes of hexaploid wheat, tetraploid wheat, Triticum tauschii, and barley is presented. Key words : RFLP, wheat, linkage maps, molecular markers.

Relationships between floret size and grain weight in aneuploid lines of homoeologous group-5 chromosomes of common wheat (Triticum aestivum L.) cv. Chinese Spring

1986 ◽  
Vol 28 (4) ◽  
pp. 497-501 ◽  
Author(s):  
Eitan Millet
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Chinese Spring ◽  
Triticum Aestivum L ◽  
Grain Weight ◽  
Homoeologous Group ◽  
Floral Organs ◽  
Chromosome 5A ◽  
Group 5 ◽  
Volume Estimates

Various aneuploids of common wheat (Triticum aestivum L.) cv. Chinese Spring were used to study the dosage effect of group-5 chromosomes on spike morphology, size of floral organs, and grain weight. Reduced dosage resulted in smaller floral organs, smaller floret cavities, and lighter grains than in the euploid, while increased dosage had the opposite effects. Chromosome 5A was the most effective in inducing these changes, whereas in most cases 5B was the least effective. Based on the various lines studied, a high linear correlation was found between the weight of the basal grains in the central spikelets and the volume estimates of the florets in which they were developed. The different lines exhibited a considerable similarity between the size distribution of floral organs and the grain weight distribution in the main spike. Pleiotropic effects of genes located on group-5 chromosomes on size of floral organs and grain weight are suggested.Key words: Wheat, aneuploids, group-5 chromosomes.

Effect of Cold Pretreatment and Incubation Temperature on Bread Wheat (Triticum aestivum L.) Anther Culture

2001 ◽  
Vol 29 (3-4) ◽  
pp. 331-338 ◽  
Author(s):  
I. N. Xynias ◽  
I. A. Zamani ◽  
E. Gouli-Vavdinoudi ◽  
D. G. Roupakias
Keyword(s):  
Triticum Aestivum ◽  
Anther Culture ◽  
Bread Wheat ◽  
Incubation Temperature ◽  
Triticum Aestivum L ◽  
Cold Pretreatment

scholarly journals QTL mapping of seedling biomass and root traits under different nitrogen conditions in bread wheat (Triticum aestivum L.)

2021 ◽  
Vol 20 (5) ◽  
pp. 1180-1192
Author(s):  
Meng-jiao YANG ◽  
Cai-rong WANG ◽  
Muhammad Adeel HASSAN ◽  
Yu-ying WU ◽  
Xian-chun XIA ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Qtl Mapping ◽  
Bread Wheat ◽  
Root Traits ◽  
Triticum Aestivum L ◽  
Seedling Biomass ◽  
Nitrogen Conditions

Genetic relationships between resistances to Fusarium head blight and crown rot in bread wheat (Triticum aestivum L.)

2010 ◽  
Vol 121 (5) ◽  
pp. 941-950 ◽  
Author(s):  
Hao Bing Li ◽  
Guo Qiang Xie ◽  
Jun Ma ◽  
Gui Ru Liu ◽  
Shu Min Wen ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Fusarium Head Blight ◽  
Bread Wheat ◽  
Genetic Relationships ◽  
Triticum Aestivum L ◽  
Crown Rot ◽  
Head Blight

scholarly journals Genetic and in silico comparative mapping of the polyphenol oxidase gene in bread wheat (Triticum aestivum L.)

2005 ◽  
Vol 6 (1) ◽  
pp. 81-81
Author(s):  
Rosy Raman ◽  
Harsh Raman ◽  
Katie Johnstone ◽  
Chris Lisle ◽  
Alison Smith ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Bread Wheat ◽  
Polyphenol Oxidase ◽  
Comparative Mapping ◽  
In Silico ◽  
Triticum Aestivum L ◽  
Oxidase Gene
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