Sophora moorcroftiana genome analysis suggests association between sucrose metabolism and drought adaptation

作者：Xin Yin, Danni Yang, Yongming Liu, Shihai Yang, Rui Zhang, Xiaoling Sun, Hongxu Liu, Yuan‐Wen Duan, Yunqiang Yang, Yongping Yang · 发表于：PLANT PHYSIOLOGY · 年份：2022 · DOI：10.1093/plphys/kiac558 · 被引用次数：16 · 研究领域：Plant nutrient uptake and metabolism、Plant responses to water stress、Plant Stress Responses and Tolerance

Dear Editor, Sophora moorcroftiana (Benth.) Baker is a highly drought-resistant and sand-resistant endemic Sophora shrub species in the Fabaceae family that can be found along the Yarlung Tsangpo River (elevation: 2,800–4,400 m) of the Tibetan Plateau (Liu et al., 2020). Sophora moorcroftiana has an extensive root system that enables its survival in arid regions with little rainfall (Figure 1A; Supplemental Figure 1). Previous work has examined the physiological and biochemical features underlying the drought tolerance of S. moorcroftiana (Guo et al., 2014). Additionally, only RNA-Seq data have been collected to assess its drought tolerance, and dehydration-responsive-element binding genes (DREB) are the only drought-associated genes that have been cloned from S. moorcroftiana (Li et al., 2015, 2017). Although S. moorcroftiana holds great potential for ecological restoration in the Tibetan Plateau, efforts to understand the molecular basis of its drought resistance have been hindered by a lack of functional genomics resources. A, Data on root depth, length, spread, collard diameter, and soil penetration were measured (n = 5) for S. moorcroftiana (Supplemental Figure 1), with the most representative root length shown in Figure 1A. B, The genomic landscape across nine pseudomolecules. C, Phylogenetic analysis of 13 plant species, including 10 Fabaceae species, with cucumber (Cucurbitaceae), grape (Vitaceae), and Populus trichocarpa (Salicaceae) as outgroups. The estimated diver...