Characterization of wheat-Thinopyrum partial amphiploids for resistance to barley yellow dwarf virus

2002 ◽  
pp. 27-34
Author(s):  
G. Fedak ◽  
Q. Chen ◽  
A. Comeau ◽  
C. A. St.-Pierre
Keyword(s):  
Barley Yellow Dwarf Virus ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Partial Amphiploids

scholarly journals Molecular characterization of barley yellow dwarf virus in Tunisia

2014 ◽  
Vol 58 (03) ◽  
pp. 214-222 ◽  
Author(s):  
M. BOUALLEGUE ◽  
M. MEZGHANI-KHEMAKHEM ◽  
D. BOUKTILA ◽  
H. MAKNI ◽  
M. MAKNI
Keyword(s):  
Molecular Characterization ◽  
Barley Yellow Dwarf Virus ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus

scholarly journals Characterization of Monoclonal Antibodies to a U.K. Isolate of Barley Yellow Dwarf Virus

1986 ◽  
Vol 67 (3) ◽  
pp. 549-556 ◽  
Author(s):  
L. Torrance ◽  
M. T. Pead ◽  
A. P. Larkins ◽  
G. W. Butcher
Keyword(s):  
Monoclonal Antibodies ◽  
Barley Yellow Dwarf Virus ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus

Varying chromosome composition of 56-chromosome wheat × Thinopyrum intermedium partial amphiploids

Genome ◽  
1993 ◽  
Vol 36 (2) ◽  
pp. 207-215 ◽  
Author(s):  
P. M. Banks ◽  
S. J. Xu ◽  
R. R.-C. Wang ◽  
P. J. Larkin
Keyword(s):  
Barley Yellow Dwarf Virus ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Molecular Evidence ◽  
Thinopyrum Intermedium ◽  
Meiotic Analysis ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Head Morphology ◽  
Partial Amphiploids

Thinopyrum intermedium (2n = 42) is a source of many potentially useful genes for wheat improvement. Many partial amphiploids have been produced between Th. intermedium and Triticum aestivum that are fertile and stable. These partial amphiploids all have 56 chromosomes, including seven pairs of chromosomes from Th. intermedium. To explore the genomic composition of these lines, meiotic analysis was conducted on 32 hybrid combinations between eight different partial amphiploids. All but two of the chosen parents were distinguishable on the basis of perenniality, head morphology, and reactions to leaf, stripe, and stem rusts and to barley yellow dwarf virus. Chromosome pairing in the hybrids clearly indicated that all but two of the partial amphiploids differed in their composition of Thinopyrum chromosomes. The differences varied from one to five chromosomes. This confirms molecular evidence that the extra genome of the octoploid partial amphiploids is a variable synthetic genome combining chromosomes of the three Thinopyrum genomes E, J, and X. Though the extra synthetic genomes vary widely between different octoploids, they are nevertheless stable once formed. It is argued that the failure to establish these octoploid amphiploids as a new crop is a consequence of their differing chromosome complements, which makes it impractical to interbreed them.Key words: Thinopyrum, Agropyron, agrotriticum, wheat, amphiploid, octoploid, barley yellow dwarf virus, rust.

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