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GrainGenes Reference Report: TAG-99-16

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Reference
TAG-99-16
Title
A high-density genetic linkage map of Aegilops tauschii, the D-genome progenitor of bread wheat.
Journal
Theoretical and Applied Genetics
Year
1999
Volume
99
Pages
16-26
Author
Boyko EV
[ Show all 12 ]
Abstract
Aegilops tauschii is the diploid D-genome progenitor of bread wheat (Triticum aestivum L. em Thell, 2n = 6x = 42, AABBDD). A genetic linkage map of the Ae. tauschii genome was constructed, composed of 546 loci. One hundred and thirty two loci (24%) gave distorted segregation ratios. Sixty nine probes (13%) detected multiple copies in the genome. One hundred and twenty three of the 157 markers shared between the Ae. tauschii genetic and T. aestivum physical maps were colinear. The discrepancy in the order of five markers on the Ae. tauschii 3DS genetic map versus the T. aestivum 3D physical map indicated a possible inversion. Further work is needed to verify the discrepancies in the order of markers on the 4D, 5D and 7D Ae. tauschii genetic maps versus the physical and genetic maps of T. aestivum. Using common markers, 164 agronomically important genes were assigned to specific regions on Ae. tauschii linkage, and T. aestivum physical maps. This information may be useful for map-based cloning and marker-assisted plant breeding.
External Databases
http://link.springer-ny.com/link/service/journals/00122/bibs/9099001/90990016.htm
Locus
Xksu26
[ Show all 300 ]
Map Data
Wheat, Physical
Probe
PSR547
Keyword
aegilops
[ Show all 21 ]