Alien chromosome addition in durum wheat. II. Advanced progeny

Genome ◽  
1988 ◽  
Vol 30 (3) ◽  
pp. 303-306 ◽  
Author(s):  
J. Schulz-Schaeffer ◽  
S. E. Haller
Keyword(s):  
Durum Wheat ◽  
Chromosome Pairing ◽  
Triticum Turgidum ◽  
Alien Chromosome ◽  
Group Of Seven ◽  
Chromosome Addition ◽  
Agropyron Intermedium ◽  
Alien Chromosome Addition ◽  
Wheat Parent ◽  
Intermedium Chromosome

Alien chromosome addition in durum wheat was accomplished by backcrossing and selling an amphiploid derivative F10 strain of Triticum turgidum L. var. durum × Agropyron intermedium (Host) Beauv. The number of chromosome pairs increased from an average of 10.4 bivalents in the B1F1 to 18.5 bivalents in the B1F7 generation. Stabilization of chromosome pairing was improved as expressed in the range of bivalents (0–21 in the B1F1 and 16–21 in the B1F7 generation). Backcrossing to the durum wheat parent resulted in the elimination of some Agropyron chromosomes and in others becoming pairs. A hexaploid Agrotriticum with the constitution AABBII resulted. The I genome consists of a group of seven chromosome pairs from A. intermedium.Key words: Agrotriticum, Agropyron intermedium, chromosome pairing.

scholarly journals Identification of wheat alien chromosome addition lines for breeding wheat with high phosphorus efficiency

2010 ◽  
Vol 60 (4) ◽  
pp. 371-379 ◽  
Author(s):  
Shiwen Wang ◽  
Lina Yin ◽  
Hiroyuki Tanaka ◽  
Kiyoshi Tanaka ◽  
Hisashi Tsujimoto
Keyword(s):  
Phosphorus Efficiency ◽  
Alien Chromosome ◽  
Addition Lines ◽  
Chromosome Addition ◽  
High Phosphorus ◽  
Chromosome Addition Lines ◽  
Alien Chromosome Addition

Resistance to Take-all is Not Expressed in Wheat-Alien Chromosome Addition and Substitution Lines

2003 ◽  
Vol 4 (1) ◽  
pp. 28
Author(s):  
Yong-Ki Kim ◽  
Bernd Friebe ◽  
William W. Bockus
Keyword(s):  
Root Disease ◽  
Alien Chromosome ◽  
Substitution Lines ◽  
Breeding For Resistance ◽  
Chromosome Addition ◽  
Alien Chromosome Addition ◽  
Made In ◽  
Take All

Take-all is regarded as the most damaging root disease wheat and is widely distributed worldwide. In spite of its importance, little progress has been made in breeding for resistance. In this study, a greenhouse bioassay was used to establish that transfer of take-all resistance from H. vulgare, H. chilense, or H. villosa to wheat may not be easily accomplished. Accepted for publication 6 October 2003. Published 24 November 2003.

scholarly journals Production of disomic wheat-barley chromosome addition lines using Hordeum bulbosum crosses

1981 ◽  
Vol 37 (2) ◽  
pp. 215-219 ◽  
Author(s):  
A. K. M. R. Islam ◽  
K. W. Shepherd
Keyword(s):  
Female Parent ◽  
Barley Chromosome ◽  
Hordeum Bulbosum ◽  
Alien Chromosome ◽  
Addition Lines ◽  
Transmission Frequency ◽  
Chromosome Addition ◽  
Chromosome Addition Lines ◽  
Disomic Addition Lines ◽  
Wheat Parent

SUMMARYThe possibility of using Hordeum bulbosum Crosses to facilitate production of disomic wheat–barley addition lines from monosomic additions was investigated. Aneuhaploids with 22 chromosomes were obtained in the expected gametic frequencies after crossing monosomic, disomio and monotelo-disomic addition lines, involving four different barley chromosomes, as the female parent with tetraploid H. bulbosum. Thus the added barley chromosomes were not eliminated when preferential elimination of the bulbosum chromosomes took place in the hybrid embryos. Disomic addition lines were obtained after treating the aneuhaploids with colchicine. This method could have wider application in the production of other wheat–alien chromosome disomic addition lines, especially where the transmission frequency of the alien chromosome through the pollen is very low, but its use will depend on the wheat parent being crossarle with H. bulbosum and the alien chromosome being retained during the elimination of bulbosum chromosomes.

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