AI Article Synopsis
- The TIFY gene family is unique to plants and includes various proteins characterized by the TIFY domain, organized into four subfamilies: ZML, TIFY, PPD, and JAZ.
- This study identifies a significant increase in maize TIFY family members, adding 40% more and totaling 47, with a focus on the JAZ subfamily.
- Newly identified JAZ genes show variations in their domains, indicating potential changes in their functions, and expression analysis highlights specific genes with unique patterns in different plant tissues.
Article Abstract
The TIFY gene family is a plant-specific gene family encoding a group of proteins characterized by its namesake, the conservative TIFY domain and members can be organized into four subfamilies: ZML, TIFY, PPD and JAZ (Jasmonate ZIM-domain protein) by presence of additional conserved domains. The TIFY gene family is intensively explored in several model and agriculturally important crop species and here, yet the composition of the TIFY family of maize has remained unresolved. This study increases the number of maize TIFY family members known by 40%, bringing the total to 47 including 38 JAZ, 5 TIFY, and 4 ZML genes. The majority of the newly identified genes were belonging to the JAZ subfamily, six of which had aberrant TIFY domains, suggesting loss JAZ-JAZ or JAZ-NINJA interactions. Six JAZ genes were found to have truncated Jas domain or an altered degron motif, suggesting resistance to classical JAZ degradation. In addition, seven membranes were found to have an LxLxL-type EAR motif which allows them to recruit TPL/TPP co-repressors directly without association to NINJA. Expression analysis revealed that ZmJAZ14 was specifically expressed in the seeds and ZmJAZ19 and 22 in the anthers, while the majority of other ZmJAZs were generally highly expressed across diverse tissue types. Additionally, ZmJAZ genes were highly responsive to wounding and JA treatment. This study provides a comprehensive update of the maize TIFY/JAZ gene family paving the way for functional, physiological, and ecological analysis.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7901733 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0247271 | PLOS |
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