Genome-Wide Identification of Histone Modification Gene Families in the Model Legume Medicago truncatula and Their Expression Analysis in Nodules
Articolo
Data di Pubblicazione:
2022
Citazione:
Genome-Wide Identification of Histone Modification Gene Families in the Model Legume Medicago truncatula and Their Expression Analysis in Nodules / L. Lopez, G. Perrella, O. Calderini, A. Porceddu, F. Panara. - In: PLANTS. - ISSN 2223-7747. - 11:3(2022 Jan), pp. 322.1-322.22. [10.3390/plants11030322]
Abstract:
Histone methylation and acetylation are key processes in the epigenetic regulation of plant growth, development, and responses to environmental stimuli. The genes encoding for the enzymes that are responsible for these chromatin post-translational modifications, referred to as histone modification genes (HMGs), have been poorly investigated in Leguminosae species, despite their importance for establishment and activity of nitrogen-fixing nodules. In silico analysis of Medicago truncatula HMGs identified 81 histone methyltransferases, 46 histone demethylases, 64 histone acetyltransferases, and 15 histone deacetylases. MtHMGs were analyzed for their structure and domain composition, and some combinations that were not yet reported in other plant species were identified. Genes have been retrieved from M. truncatula A17 and R108 genotypes as well as M. sativa CADL and Zhongmu No.1; the gene number and distribution were compared with Arabidopsis thaliana. Furthermore, by analyzing the expression data that were obtained at various developmental stages and in different zones of nitrogen-fixing nodules, we identified MtHMG loci that could be involved in nodule development and function. This work sets a reference for HMG genomic organization in legumes which will be useful for functional investigation that is aimed at elucidating HMGs involvement in nodule development and symbiotic nitrogen fixation.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Gene expression; Histone-modifying genes; Medicago sativa; Medicago truncatula; Symbiotic nitrogen fixation
Elenco autori:
L. Lopez, G. Perrella, O. Calderini, A. Porceddu, F. Panara
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