Department of Genomics and Bioinformatics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia.
Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia.
Int J Mol Sci. 2022 Mar 29;23(7):3761. doi: 10.3390/ijms23073761.
In the course of evolution, both flowering plants and some gymnosperms have developed such an adaptation to winter and unfavorable living conditions as deciduousness. Of particular interest is Siberian larch ( Ledeb.), which is the only species in the pine family (Pinaceae) with a seasonal deciduousness. New generation sequencing technologies make it possible to study this phenomenon at the genomic level and to reveal the genetic mechanisms of leaf and needle aging in angiosperms and gymnosperms. Using a comparative analysis of the genomes of evergreen and deciduous trees, it was found that the genes that control EXORDIUM LIKE 2 (EXL2) and DORMANCY-ASSOCIATED PROTEIN 1 (DRM1) proteins are most represented in Siberian larch, while an excess of genes that control proteins acting as immune receptors were found in evergreens. Orthologs from the family of genes that control leucine-rich repeat receptor-like kinases (LRR-RLK) contributed mostly to the distinction between evergreens and deciduous plants.
在进化过程中，开花植物和一些裸子植物都发展出了一种适应冬季和不利生活条件的特性，即落叶性。西伯利亚落叶松（Ledeb.）特别有趣，它是松科（Pinaceae）中唯一具有季节性落叶特性的物种。新一代测序技术使我们能够在基因组水平上研究这种现象，并揭示被子植物和裸子植物叶片和针叶衰老的遗传机制。通过对常绿树种和落叶树种基因组的比较分析，发现控制 EXORDIUM LIKE 2（EXL2）和 DORMANCY-ASSOCIATED PROTEIN 1（DRM1）蛋白的基因在西伯利亚落叶松中表达最为丰富，而控制免疫受体蛋白的基因在常绿树中则过剩。控制富含亮氨酸重复受体样激酶（LRR-RLK）家族基因的同源基因主要有助于常绿植物和落叶植物之间的区分。
