Summary
The role of D-genome chromosomes in the expression of net photosynthesis in wheats was analysed with the nullitetrasomic and ditelosomic lines of the bread wheat cultivar ‘Chinese Spring’. The two arms of chromosome 3 D and the short arm of chromosome 6 D control major mechanisms of photosynthesis. The effect of chromosome 6 D can be thoroughly compensated by that of its homoeologues of genomes A or B, contrary to what can be observed for chromosome 3 D. Chromosome 7 D is responsible for the low photosynthesis of flag leaves developed under high irradiances in genotypes possessing the D-genome, as the likely result of ontogeny or of a loss in adaptability to irradiance.
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Communicated by R. Riley
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Haour-Lurton, B., Planchon, C. Role of D-genome chromosomes in photosynthesis expression in wheats. Theoret. Appl. Genetics 69, 443–446 (1985). https://doi.org/10.1007/BF00570915
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DOI: https://doi.org/10.1007/BF00570915