Shchennikova A V, Shulga O A, Beletsky A V, Filyushin M A, Kochieva E Z, Ravin N V, Skryabin K G
Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia.
Faculty of Biotechnology, Moscow State University, Moscow, 119992, Russia.
Dokl Biochem Biophys. 2017 May;474(1):204-208. doi: 10.1134/S1607672917030103. Epub 2017 Jul 20.
The gene encoding the transcription factor LEAFY was identified in the genome of the mycoheterotrophic plant, pinesap Monotropa hypopitys. In the transcriptomes of roots, bracts, and flowers of flowering pinesaps, the MhyLFY gene expression was absent. These data suggest the conservativeness of the LFY-dependent mechanism of flower meristem identity and flower formation in heterotrophic species with some differences associated to the specificity of development and the structure of such plants. The pinesap flowering under the control of the transcription factor MhyLFY may be initiated either in an embryonic inflorescence during spring dormancy release of adventitious root buds or in an inflorescence of a growing reproductive stem after photoperiodic induction.
在菌异养植物松下兰（Monotropa hypopitys）的基因组中鉴定出了编码转录因子LEAFY的基因。在开花松下兰的根、苞片和花的转录组中，未检测到MhyLFY基因的表达。这些数据表明，依赖LEAFY的花分生组织特性和花形成机制在异养植物中具有保守性，但与这类植物发育和结构的特异性相关存在一些差异。在转录因子MhyLFY的调控下，松下兰的开花可能在不定根芽春季休眠解除期间的胚胎花序中启动，也可能在光周期诱导后在生长中的生殖茎的花序中启动。
