Faĭt V I, Stel'makh A F, Fedorova V R
Tsitol Genet. 2006 Mar-Apr;40(2):12-9.
The influence of various Ppd genes on the beginning and duration of photoperiodic responce has been investigated in near isogenic lines of winter bread wheat Mironovskaya 808. During ontogenesis the photoperiodic responce is ascertained from the middle 2nd stage of ontogenesis according to Kuperman (usually a week later after vernalization completion in winter genotypes) and it is completed to the late 5th stage (2-3 weeks before heading). Different Ppd alleles do not affect the photoreaction intensity however they have an influence on its duration through the rate of development. Ppd-A1a and Ppd-B1a genes manifest shorter duration of expression when compared to the recessive alleles in the initial Mironovskaya 808 cultivar. Effect of the Ppd-B1a gene is stronger and of the Ppd-A1a is weaker.
在冬性面包小麦米罗诺夫斯卡娅808的近等基因系中，研究了各种Ppd基因对光周期反应起始和持续时间的影响。在个体发育过程中，根据库珀曼的方法，从个体发育的第二阶段中期（通常在冬性基因型完成春化一周后）确定光周期反应，并在第五阶段后期（抽穗前2 - 3周）完成。不同的Ppd等位基因不影响光反应强度，但它们通过发育速率对其持续时间有影响。与初始米罗诺夫斯卡娅808品种中的隐性等位基因相比，Ppd - A1a和Ppd - B1a基因表现出较短的表达持续时间。Ppd - B1a基因的作用更强，Ppd - A1a基因的作用较弱。
