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Int. J. Mol. Sci. 2018, 19(6), 1583; https://doi.org/10.3390/ijms19061583

Genome-Wide Identification and Expression Analysis of the UGlcAE Gene Family in Tomato

Key Laboratory of Horticulture Science for Southern Mountainous Regions (Chinese Ministry of Education), College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
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Received: 12 April 2018 / Revised: 20 May 2018 / Accepted: 23 May 2018 / Published: 27 May 2018
(This article belongs to the Special Issue Plant Genomics)
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Abstract

The UGlcAE has the capability of interconverting UDP-d-galacturonic acid and UDP-d-glucuronic acid, and UDP-d-galacturonic acid is an activated precursor for the synthesis of pectins in plants. In this study, we identified nine UGlcAE protein-encoding genes in tomato. The nine UGlcAE genes that were distributed on eight chromosomes in tomato, and the corresponding proteins contained one or two trans-membrane domains. The phylogenetic analysis showed that SlUGlcAE genes could be divided into seven groups, designated UGlcAE1 to UGlcAE6, of which the UGlcAE2 were classified into two groups. Expression profile analysis revealed that the SlUGlcAE genes display diverse expression patterns in various tomato tissues. Selective pressure analysis indicated that all of the amino acid sites of SlUGlcAE proteins are undergoing purifying selection. Fifteen stress-, hormone-, and development-related elements were identified in the upstream regions (0.5 kb) of these SlUGlcAE genes. Furthermore, we investigated the expression patterns of SlUGlcAE genes in response to three hormones (indole-3-acetic acid (IAA), gibberellin (GA), and salicylic acid (SA)). We detected firmness, pectin contents, and expression levels of UGlcAE family genes during the development of tomato fruit. Here, we systematically summarize the general characteristics of the SlUGlcAE genes in tomato, which could provide a basis for further function studies of tomato UGlcAE genes. View Full-Text
Keywords: Solanum lycopersicum; UGlcAE gene family; identification; characterization; plant hormones; gene expression Solanum lycopersicum; UGlcAE gene family; identification; characterization; plant hormones; gene expression
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Ding, X.; Li, J.; Pan, Y.; Zhang, Y.; Ni, L.; Wang, Y.; Zhang, X. Genome-Wide Identification and Expression Analysis of the UGlcAE Gene Family in Tomato. Int. J. Mol. Sci. 2018, 19, 1583.

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