GrainGenes Reference Report: PEU-04-367
Reference
PEU-04-367
Title
Chromosome 1D as a possible location of a gene (s) controlling carbon isotope discrimination ( DELTA ) in wheat (Triticum aestivum L.) under water-stress conditions
Contained in
(2004) Genetic variation for plant breeding. Proceedings of the 17th EUCARPIA General Congress, Tulln, Austria, 8-11 September 2004.
Year
2004
Pages
367-370
Author
Shahram M Vollmann J Grausgruber H Ruckenbauer P
Abstract
In this study, F2 backcross reciprocal monosomic crosses between cultivars 'Falchetto' (low DELTA ) and 18 monosomic lines of 'Oxley' (high DELTA ) were used to identify chromosomal location of the gene(s) responsible for DELTA . F2 reciprocal monosomic families were initially assessed for dry matter production. F2 families belonging to the chromosomes that indicated allelic variation for dry matter production were also assessed for DELTA . The results revealed that reciprocal families belonging to chromosomes 1B, 7B, 1D and 5D indicated significant differences from which the family having chromosome 1D from 'Falchetto' had the highest difference from its relevant reciprocal. Assessing the reciprocals of this chromosome for evapotranspiration efficiency (ETE) at the F3 disomic generation indicated that the observed variation for DELTA was translated into differences for ETE. These results indicate that chromosome 1D of 'Falchetto' is promising in reducing DELTA and that the improvement of wheat cultivars for ETE can be done by selection for DELTA . When selecting for DELTA , managing the experiment is easier and there is no need to monitor the water use during the growth cycle
Keyword
agriculture
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GrainGenes Reference Report: PEU-04-367
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||