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Updated: May 5, 2026

Environmentally Induced Heritable Changes in Flax
Published on: January 26, 2011
Identification, Bioinformatics, and Expression Analysis of JAZ Gene Family in Flax (Linum usitatissimum L.)
Liuxi Yi1, Ying Sun1, Yu Zhou2
1Agricultural College, Inner Mongolia Agricultural University, Hohhot 010019, China.
Abstract:
Jasmonate ZIM-domain (JAZ) proteins, as core negative regulatory factors of the jasmonic acid (JA) signaling pathway, play a key role in the growth and development of plants and the response to biotic and abiotic stress. In this study, 11 flax JAZ members were identified, all of which contain a ZIM domain and a Jas domain. LuJAZs comprise 3-16 exons, encoding 187-808 amino acids (aa) with molecular weights ranging from 20.24 to 88.76 kDa and isoelectric points (PI) of 5.68-9.77. They are all hydrophilic proteins located in the nucleus. These 11 LuJAZ genes are divided into five subfamilies and are unevenly distributed on chromosomes. Transcriptome and qRT-PCR analyses revealed that six LuJAZ genes, including LUSG00004384, LUSG00030782, LUSG00016742, LUSG00004390, LUSG00010997, and LUSG00029783, are significantly induced by JA. The protein-protein interaction (PPI) prediction and analysis of differential expression genes (DEGs) suggest that the MYC2 gene (LUSG00028070) may play a role in the JA-induced response. This study provides a theoretical basis for further exploring the function of the JAZ family in flax.
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