Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3389/fpls.2021.692494 |
Heterophylly Quantitative Trait Loci Respond to Salt Stress in the Desert Tree Populus euphratica | |
Fu, Yaru; Li, Feiran; Mu, Shuaicheng; Jiang, Libo; Ye, Meixia; Wu, Rongling | |
通讯作者 | Ye, MX (corresponding author), Beijing Forestry Univ, Coll Biol Sci & Technol, Ctr Computat Biol, Beijing, Peoples R China. |
来源期刊 | FRONTIERS IN PLANT SCIENCE
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ISSN | 1664-462X |
出版年 | 2021 |
卷号 | 12 |
英文摘要 | Heterophylly, or leaf morphological changes along plant shoot axes, is an important indicator of plant eco-adaptation to heterogeneous microenvironments. Despite extensive studies on the genetic control of leaf shape, the genetic architecture of heterophylly remains elusive. To identify genes related to heterophylly and their associations with plant saline tolerance, we conducted a leaf shape mapping experiment using leaves from a natural population of Populus euphratica. We included 106 genotypes grown under salt stress and salt-free (control) conditions using clonal seedling replicates. We developed a shape tracking method to monitor and analyze the leaf shape using principal component (PC) analysis. PC1 explained 42.18% of the shape variation, indicating that shape variation is mainly determined by the leaf length. Using leaf length along shoot axes as a dynamic trait, we implemented a functional mapping-assisted genome-wide association study (GWAS) for heterophylly. We identified 171 and 134 significant quantitative trait loci (QTLs) in control and stressed plants, respectively, which were annotated as candidate genes for stress resistance, auxin, shape, and disease resistance. Functions of the stress resistance genes ABSCISIC ACIS-INSENSITIVE 5-like (ABI5), WRKY72, and MAPK3 were found to be related to many tolerance responses. The detection of AUXIN RESPONSE FACTOR17-LIKE (ARF17) suggests a balance between auxin-regulated leaf growth and stress resistance within the genome, which led to the development of heterophylly via evolution. Differentially expressed genes between control and stressed plants included several factors with similar functions affecting stress-mediated heterophylly, such as the stress-related genes ABC transporter C family member 2 (ABCC2) and ABC transporter F family member (ABCF), and the stomata-regulating and reactive oxygen species (ROS) signaling gene RESPIRATORY BURST OXIDASE HOMOLOG (RBOH). A comparison of the genetic architecture of control and salt-stressed plants revealed a potential link between heterophylly and saline tolerance in P. euphratica, which will provide new avenues for research on saline resistance-related genetic mechanisms. |
英文关键词 | heterophylly leaf shape salt stress QTL Populus euphratica |
类型 | Article |
语种 | 英语 |
开放获取类型 | gold, Green Published |
收录类别 | SCI-E |
WOS记录号 | WOS:000679186900001 |
WOS关键词 | ABSCISIC-ACID ; RESISTANCE ; TOLERANCE ; FORMAT ; GROWTH |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | 北京林业大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/363347 |
作者单位 | [Fu, Yaru; Li, Feiran; Mu, Shuaicheng; Jiang, Libo; Ye, Meixia; Wu, Rongling] Beijing Forestry Univ, Coll Biol Sci & Technol, Ctr Computat Biol, Beijing, Peoples R China; [Wu, Rongling] Penn State Univ, Dept Publ Hlth Sci, Ctr Stat Genet, Hershey, PA USA; [Wu, Rongling] Penn State Univ, Dept Stat, Ctr Stat Genet, Hershey, PA USA |
推荐引用方式 GB/T 7714 | Fu, Yaru,Li, Feiran,Mu, Shuaicheng,et al. Heterophylly Quantitative Trait Loci Respond to Salt Stress in the Desert Tree Populus euphratica[J]. 北京林业大学,2021,12. |
APA | Fu, Yaru,Li, Feiran,Mu, Shuaicheng,Jiang, Libo,Ye, Meixia,&Wu, Rongling.(2021).Heterophylly Quantitative Trait Loci Respond to Salt Stress in the Desert Tree Populus euphratica.FRONTIERS IN PLANT SCIENCE,12. |
MLA | Fu, Yaru,et al."Heterophylly Quantitative Trait Loci Respond to Salt Stress in the Desert Tree Populus euphratica".FRONTIERS IN PLANT SCIENCE 12(2021). |
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