D 基因组染色体在小麦光合作用表达中的作用。

Role of D-genome chromosomes in photosynthesis expression in wheats.

机构信息

Photosynthèse et Amélioration des Plantes, Ecole Nationale Supérieure Agronomique, 145 avenue de Muret, F-31076, Toulouse Cédex, France.

出版信息

Theor Appl Genet. 1985 Jul;69(4):443-6. doi: 10.1007/BF00570915.

DOI:10.1007/BF00570915

PMID:24253914

Abstract

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.

摘要

利用普通小麦品种“中国春”的缺体-四体和双端体系分析了 D 基因组染色体在小麦净光合作用表达中的作用。染色体 3D 的两条臂和染色体 6D 的短臂控制光合作用的主要机制。与染色体 3D 相反，染色体 6D 的作用可以被其同源基因组 A 或 B 的作用完全补偿。染色体 7D 是 D 基因组基因型在高光强下发育的旗叶光合作用低的原因，这可能是由于个体发生或对光照适应性丧失的结果。