Welcome to The Salinity Tolerant Poplar Database

Soil salinity is a significant factor that impair plant growth and agricultural productivity, and numerous efforts are underway to enhance salt tolerance of economically important plants. Populus species are widely used as a bioenergy resource and for environmental protection. This genus has a broad distribution in different climatic zones and serves as a model for elucidating physiological and molecular mechanisms of stress tolerance in woody plants. Populus euphratica Oliv., which is native to desert regions ranging from western China to North Africa, is characterized by extraordinary adaptation to salt stress. Notably, at high salinity it maintains higher growth and photosynthetic rates than other poplar species.

The recent sequenced Populus euphratica genome assembly Populus euphratica_1.1 has a size of 496.5 Mb with 112X coverage with the contig N50 of the assembled sequence being 40.4 Kb and scaffold N50 being 482Kb. Using a combination of homology-based searches and de novo annotation, we predicted a total of 34,279 protein-coding genes being present in the P. euphratica genome. Small RNA sequencing data supported the occurrence of 152 conserved and 114 candidate novel microRNAs predicted from the P. euphratica genome. In addition,764 transfer RNAs, 706 ribosomal RNAs and 4,826 small nuclear RNAs were also identified. These data can be viewed in the GBrowse genome browser. Gene expression data between P. euphratica and Populus tomentosa can be found in Gene Expression Search under Search tab, and three-way whole-genome alignments between Populus trichocarpa, P. euphratica and Salix suchowensis can be browsed in Generic Synteny Browser under Tools tab.