NDLI: Genome-Wide Identification and Spatial Expression Analysis of Histone Modification Gene Families in the Rubber Dandelion Taraxacum kok-saghyz

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Genome-Wide Identification and Spatial Expression Analysis of Histone Modification Gene Families in the Rubber Dandelion Taraxacum kok-saghyz

Content Provider	MDPI
Author	Panara, Francesco Fasano, Carlo Lopez, Loredana Porceddu, Andrea Facella, Paolo Fantini, Elio Daddiego, Loretta Perrella, Giorgio
Copyright Year	2022
Description	Taraxacum kok-saghyz (Tks), also known as the Russian dandelion, is a recognized alternative source of natural rubber quite comparable, for quality and use, to the one obtained from the so-called rubber tree, Hevea brasiliensis. In addition to that, Tks roots produce several other compounds, including inulin, whose use in pharmaceutical and dietary products is quite extensive. Histone-modifying genes (HMGs) catalyze a series of post-translational modifications that affect chromatin organization and conformation, which, in turn, regulate many downstream processes, including gene expression. In this study, we present the first analysis of HMGs in Tks. Altogether, we identified 154 putative Tks homologs: 60 HMTs, 34 HDMs, 42 HATs, and 18 HDACs. Interestingly, whilst most of the classes showed similar numbers in other plant species, including M. truncatula and A. thaliana, HATs and HMT-PRMTs were indeed more abundant in Tks. Composition and structure analysis of Tks HMG proteins showed, for some classes, the presence of novel domains, suggesting a divergence from the canonical HMG model. The analysis of publicly available transcriptome datasets, combined with spatial expression of different developmental tissues, allowed us to identify several HMGs with a putative role in metabolite biosynthesis. Overall, our work describes HMG genomic organization and sets the premises for the functional characterization of epigenetic modifications in rubber-producing plants.
Starting Page	2077
e-ISSN	22237747
DOI	10.3390/plants11162077
Journal	Plants
Issue Number	16
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2022-08-09
Access Restriction	Open
Subject Keyword	Plants Plant Sciences Histone Modification Gene Expression Taraxacum Kok-saghyz Natural Rubber
Content Type	Text
Resource Type	Article

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