Journal ArticleDOI
The Nor-D3 locus of Triticum tauschii: natural variation and genetic linkage to markers in chromosome 5
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TLDR
Variation in the intergenic spacer region of the ribosomal RNA genes (located at the Nor locus) was assayed in a collection of 411 accessions of Triticum tauschii from Turkey, USSR, Iran, Afghanisan, Pakistan, and China and showed a high level of recombination with the 5SDna-2 locus, which was also located on chromosome 5D.Abstract:
Variation in the intergenic spacer region of the ribosomal RNA genes (located at the Nor locus) was assayed in a collection of 411 accessions of Triticum tauschii from Turkey, USSR, Iran, Afghanisa...read more
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Journal ArticleDOI
The structure of the Aegilops tauschii genepool and the evolution of hexaploid wheat
TL;DR: Polymorphism in the lengths of restriction fragments at 53 single-copy loci, the rRNA locus Nor3, and the high-molecular-weight glutenin locus Glu1 was investigated in the D genome of hexaploid Triticum aestivum and that of Aegilops tauschii, and all appear to share a single D-genome genepool.
Journal ArticleDOI
Gene-specific markers for the wheat gene Lr34/Yr18/Pm38 which confers resistance to multiple fungal pathogens
Evans Lagudah,Simon G. Krattinger,S. A. Herrera-Foessel,Ravi P. Singh,Julio Huerta-Espino,Wolfgang Spielmeyer,Gina Brown-Guedira,Liselotte L. Selter,Beat Keller +8 more
TL;DR: In this paper, the authors used conserved sequence polymorphisms as templates to develop diagnostic molecular markers that will assist selection for durable multi-pathogen resistance in breeding programs, where five allele-specific markers (cssfr1-cssfr5) were developed based on a 3 bp deletion in exon 11 of the Lr34-gene.
Journal ArticleDOI
Molecular genetic characterization of the Lr34/Yr18 slow rusting resistance gene region in wheat.
Evans Lagudah,Helen G. McFadden,Ravi P. Singh,Julio Huerta-Espino,Harbans Bariana,Wolfgang Spielmeyer +5 more
TL;DR: Wheat expressed sequence tags (wESTs) were identified in a genomic interval predicted to span the Lr34/Yr18 slow rusting region on chromosome 7DS and that corresponded to genes located in the syntenic region of rice chromosome 6.
Journal ArticleDOI
A genetic linkage map of Triticum tauschii (DD) and its relationship to the D genome of bread wheat (AABBDD)
TL;DR: One hundred and seventy-eight loci have been mapped in Triticum tauschii (Coss.), and a hypervariable sequence was identified, which may have potential use in varietal fingerprinting.
Journal ArticleDOI
A Sodium Transporter (HKT7) Is a Candidate for Nax1, a Gene for Salt Tolerance in Durum Wheat
Shaobai Huang,Wolfgang Spielmeyer,Evans Lagudah,Richard A. James,J. Damien Platten,Elizabeth S. Dennis,Rana Munns +6 more
TL;DR: The expression pattern of TmHKT7-A2 was consistent with the physiological role of Nax1 in reducing Na+ concentration in leaf blades by retaining Na+ in the sheaths, and could control Na+ unloading from xylem in roots and sheaths.
References
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Journal ArticleDOI
MAPMAKER: An interactive computer package for constructing primary genetic linkage maps of experimental and natural populations
Eric S. Lander,Eric S. Lander,Philip Green,Jeff Abrahamson,Aaron Barlow,Mark J. Daly,Stephen E Lincoln,Lee Newburg +7 more
TL;DR: A computer package, called MAPMAKER, designed specifically for the construction of linkage maps in a number of organisms, including the human and several plants, and it is outlined the mapping strategies that have been used.
Journal ArticleDOI
Ribosomal DNA spacer-length polymorphisms in barley: mendelian inheritance, chromosomal location, and population dynamics.
TL;DR: It is concluded that the rDNA sl variants and/or associated loci are under selection in CCII, which demonstrates that Rrn1 and Rrn2 are useful as new genetic markers.
Journal ArticleDOI
The origin of triticum spelta and its free-threshing hexaploid relatives
E. S. Mcfadden,E. R. Sears +1 more
Journal ArticleDOI
Unequal meiotic recombination within tandem arrays of yeast ribosomal DNA genes.
TL;DR: Recombinant DNA procedures and the yeast transformation technique were used to insert the yeast gene LEU 2 (coding for beta-isopropylmalate dehydrogenase) into the tandem array of ribosomal DNA genes of the yeast Saccharomyces cerevisiae.
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The origin of triticum spelta and its free-threshing hexaploid relatives
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