Genome-Wide Identification, Expression and Stress Analysis of the GRAS Gene Family in Phoebe bournei
Author:
Chang Jiarui1, Fan Dunjin2ORCID, Lan Shuoxian3, Cheng Shengze2, Chen Shipin2, Lin Yuling3, Cao Shijiang24
Affiliation:
1. International College, Fujian Agriculture and Forestry University, Fuzhou 350002, China 2. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China 3. College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China 4. Key Laboratory of Fujian Universities for Stress Physiology Ecology and Molecular Biology of Forest, Fuzhou 350002, China
Abstract
GRAS genes are important transcriptional regulators in plants that govern plant growth and development through enhancing plant hormones, biosynthesis, and signaling pathways. Drought and other abiotic factors may influence the defenses and growth of Phoebe bournei, which is a superb timber source for the construction industry and building exquisite furniture. Although genome-wide identification of the GRAS gene family has been completed in many species, that of most woody plants, particularly P. bournei, has not yet begun. We performed a genome-wide investigation of 56 PbGRAS genes, which are unequally distributed across 12 chromosomes. They are divided into nine subclades. Furthermore, these 56 PbGRAS genes have a substantial number of components related to abiotic stress responses or phytohormone transmission. Analysis using qRT-PCR showed that the expression of four PbGRAS genes, namely PbGRAS7, PbGRAS10, PbGRAS14 and PbGRAS16, was differentially increased in response to drought, salt and temperature stresses, respectively. We hypothesize that they may help P. bournei to successfully resist harsh environmental disturbances. In this work, we conducted a comprehensive survey of the GRAS gene family in P. bournei plants, and the results provide an extensive and preliminary resource for further clarification of the molecular mechanisms of the GRAS gene family in P. bournei in response to abiotic stresses and forestry improvement.
Funder
Fujian Agriculture and Forestry University Forest Seeding Breaking in Fujian Province
Subject
Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics
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