Comprehensive Analysis of Differentially Expressed Genes and Epigenetic Modification-Related Expression Variation Induced by Saline Stress at Seedling Stage in Fiber and Oil Flax, <i>Linum usitatissimum</i> L.
Ningning Wang,
Yujie Lin,
Fan Qi,
Chunxiao Xiaoyang,
Zhanwu Peng,
Ying Yu,
Yingnan Liu,
Jun Zhang,
Xin Qi,
Michael Deyholos,
Jian Zhang
Affiliations
Ningning Wang
Faculty of Agronomy, Jilin Agricultural University, Changchun 131018, China
Yujie Lin
Faculty of Agronomy, Jilin Agricultural University, Changchun 131018, China
Fan Qi
Faculty of Agronomy, Jilin Agricultural University, Changchun 131018, China
Chunxiao Xiaoyang
Faculty of Agronomy, Jilin Agricultural University, Changchun 131018, China
Zhanwu Peng
Information Center, Jilin Agricultural University, Changchun 130000, China
Ying Yu
School of Basic Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
Yingnan Liu
Institute of Natural Resource and Ecology, Heilongjiang Academy of Science, Harbin 150040, China
Jun Zhang
Faculty of Agronomy, Jilin Agricultural University, Changchun 131018, China
Xin Qi
Faculty of Agronomy, Jilin Agricultural University, Changchun 131018, China
Michael Deyholos
Department of Biology, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada
Jian Zhang
Faculty of Agronomy, Jilin Agricultural University, Changchun 131018, China
The ability of different germplasm to adapt to a saline–alkali environment is critical to learning about the tolerance mechanism of saline–alkali stress in plants. Flax is an important oil and fiber crop in many countries. However, its molecular tolerance mechanism under saline stress is still not clear. In this study, we studied morphological, physiological characteristics, and gene expression variation in the root and leaf in oil and fiber flax types under saline stress, respectively. Abundant differentially expressed genes (DEGs) induced by saline stress, tissue/organ specificity, and different genotypes involved in plant hormones synthesis and metabolism and transcription factors and epigenetic modifications were detected. The present report provides useful information about the mechanism of flax response to saline stress and could lead to the future elucidation of the specific functions of these genes and help to breed suitable flax varieties for saline/alkaline soil conditions.
