NDLI: Characterization of the Esi3/RCI2/PMP3 gene family in the Triticeae

Content Provider	Springer Nature : BioMed Central
Author	Brunetti, Sabrina C. Arseneault, Michelle K. M. Gulick, Patrick J.
Abstract	Background Members of the Early Salt Induced 3 (Esi3/RCI2/PMP3) gene family in plants have been shown to be induced in response to both biotic and abiotic stresses and to enhance stress tolerance in both transgenic plants and Saccharomyces cerevisiae. Esi3 was first identified as a salt stress induced gene in the salt tolerant wild wheat grass, Lophopyrum elongatum, and subsequently homologous genes in many other species were found to be members of the gene family. These include Arabidopsis thaliana and Oryza sativa where they are referred to as Rare Cold Inducible 2 (RCI2), and Zea mays where they are referred to as Plasma Membrane Protein 3 (PMP3). This study characterizes the Esi3 family members in Triticum aestivum and explores the tissue specific expression patterns of the gene family members as well as their response to a variety of environmental stresses. Results The Esi3 gene family was found to have a total of 29 family members comprised of ten paralogous groups in the hexaploid T. aestivum. Each paralogous group contains three homeologous copies, one in each of the A, B and D genomes with the exception of Esi3–2 which is missing the B copy. The genes of the Esi3 gene family were also identified in four other monocot species, Aegilops tauschii, Hordeum vulgare, Secale cereale and Sorghum bicolor, and were confirmed or corrected for Brachypodium distachyon, Oryza sativa and Zea mays, as well as the dicot Arabidopsis thaliana. Gene expression of the Esi3s was analyzed using tissue-specific, abiotic and biotic stress RNA-Seq 454 sequence libraries and Affymetrix microarray data for T. aestivum. Conclusions Members of nearly all paralogous groups of the Esi3 genes in T. aestivum have altered gene expression in response to abiotic or biotic stress conditions. In addition, there are modest differences in gene expression among homeologous members of the gene family. This suggests that the Esi3 gene family plays an important role in the plants response to the stresses presented in this study. The Esi3–9 in T. aestivum has a unique N terminal extension placing it into Group III, a new group for the Esi3/RCI2/PMP3 gene family.
Related Links	https://bmcgenomics.biomedcentral.com/counter/pdf/10.1186/s12864-018-5311-8.pdf
Ending Page	16
Page Count	16
Starting Page	1
File Format	HTM / HTML
ISSN	14712164
DOI	10.1186/s12864-018-5311-8
Journal	BMC Genomics
Issue Number	1
Volume Number	19
Language	English
Publisher	BioMed Central
Publisher Date	2018-12-11
Access Restriction	Open
Subject Keyword	Life Sciences Microarrays Proteomics Animal Genetics and Genomics Microbial Genetics and Genomics Plant Genetics and Genomics Esi3 Rare Cold Inducible 2 RCI2 Plasma Membrane Protein 3 PMP3 Early salt induced gene family Tissue-specific expression RNA-seq
Content Type	Text
Resource Type	Article
Subject	Biotechnology Genetics
Journal Impact Factor	3.5/2023
5-Year Journal Impact Factor	4.1/2023

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