Expression profiles of a banana fruit linker histone H1 gene MaHIS1 and its interaction with a WRKY transcription factor

Wang, Junning; Kuang, Jian-fei; Shan, Wei; Chen, Jiao; Xie, Hui; Lu, Wang-jin; Chen, Jianwen; Chen, Jianye

doi:10.1007/s00299-012-1263-7

Cited by 26 publications

(26 citation statements)

References 51 publications

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“…Some findings have confirmed that H1 histone is a stress-induced gene in plants (Ascenzi and Gantt 1997;Kreps et al 2002;Scippa et al 2000;Wei and O'Connell 1996). For example, Wang et al (2012a) reported that the expression level of H1 histone was significantly increased by stress treatments and exogenous hormone treatment in banana fruit, while Trivedi et al (2012) reported the accumulation of an H1 histone variant during epigenetic regulation of drought tolerance in Gossypium herbaceum. However, the mechanism underlying the involvement of H1 histone in stress response and in conferring stress tolerance in plants is still unknown.…”

Section: Introductionmentioning

confidence: 78%

“…Previous studies showed that H1 histone predominantly localizes to the nucleus in plant cells (Tanaka et al 1999;Wang et al 2012a). In our investigation, we also found that the CsHis protein localizes to the nucleus in onion epidermal cells and transgenic tobacco cells (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…For example, Shen and Gorovsky (1996) demonstrated that H1 histone was a key factor in activating the expression of the CyP (Cysteine protease) gene in Tetrahymena cells, suggesting that H1 histone is crucial to many life processes including development, differentiation, apoptosis, aging and senescence (Raghuram et al 2009;Wolffe et al 1997). Moreover, the H1 histone genes from several plant species such as Arabidopsis thaliana (Ascenzi and Gantt 1997), maize (Razafimahatratra et al 1991), wheat (Yang et al 1991), tomato (Jayawardene and Riggs 1994), tobacco (Szekeres et al 1995), banana (Wang et al 2012a), and cotton (Trivedi et al 2012) have been cloned and sequenced. Furthermore, different variants of H1 histone were distinguished according to their structures and functions, including H1A, H1B, H1C, H1D, H1E and H1F.…”

Section: Introductionmentioning

confidence: 96%

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Overexpression of Camellia sinensis H1 histone gene confers abiotic stress tolerance in transgenic tobacco

Wang

et al. 2014

Plant Cell Rep

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Overexpression of CsHis in tobacco promoted chromatin condensation, but did not affect the phenotype. It also conferred tolerance to low-temperature, high-salinity, ABA, drought and oxidative stress in transgenic tobacco. H1 histone, as a major structural protein of higher-order chromatin, is associated with stress responses in plants. Here, we describe the functions of the Camellia sinensis H1 Histone gene (CsHis) to illustrate its roles in plant responses to stresses. Subcellular localization and prokaryotic expression assays showed that the CsHis protein is localized in the nucleus, and its molecular size is approximately 22.5 kD. The expression levels of CsHis in C. sinensis leaves under various conditions were investigated by qRT-PCR, and the results indicated that CsHis was strongly induced by various abiotic stresses such as low-temperature, high-salinity, ABA, drought and oxidative stress. Overexpression of CsHis in tobacco (Nicotiana tabacum) promoted chromatin condensation, while there were almost no changes in the growth and development of transgenic tobacco plants. Phylogenetic analysis showed that CsHis belongs to the H1C and H1D variants of H1 histones, which are stress-induced variants and not the key variants required for growth and development. Stress tolerance analysis indicated that the transgenic tobacco plants exhibited higher tolerance than the WT plants upon exposure to various abiotic stresses; the transgenic plants displayed reduced wilting and senescence and exhibited greater net photosynthetic rate (Pn), stomatal conductance (Gs) and maximal photochemical efficiency (Fv/Fm) values. All the above results suggest that CsHis is a stress-induced gene and that its overexpression improves the tolerance to various abiotic stresses in the transgenic tobacco plants, possibly through the maintenance of photosynthetic efficiency.

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Section: Introductionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

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Overexpression of Camellia sinensis H1 histone gene confers abiotic stress tolerance in transgenic tobacco

Wang

et al. 2014

Plant Cell Rep

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“…Also, chromatin remodeling has also started to emerge as an important mode whereby the regulatory mechanism modulates expression of target gene expression during stress responses (Trivedi et al 2012;wang et al 2012a). Thus, mechanisms other than mere recognition of the core w box promoter elements are necessary to achieve the regulatory specificity of wRKY TFs (Chi et al 2013).…”

Section: Wrky Transcription Factors-domain Structure and Bindingmentioning

confidence: 99%

A systems biology perspective on the role of WRKY transcription factors in drought responses in plants

Tripathi

Rabara

Rushton

2013

Planta

203

130

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“…In silico analysis of ESTs revealed that 27, 32, and 37% of genes in groups I, II, and III, respectively, were expressed in fruit libraries. Wang et al (2012) showed that the MaWRKY1TF is involved in the maturation of banana fruit. TFs of the MaHIS1gene interact with MaWRKY1, promoting banana fruit ripening.…”

Section: Discussionmentioning

confidence: 99%

In silico genome-wide identification and phylogenetic analysis of the WRKY transcription factor family in sweet orange (Citrus sinensis)

Silva¹,

Ito²,

Souza³

2017

Aust J Crop Sci

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WRKY transcription factors (TFs) play important roles in several biological processes, especially in defense against different biotic and abiotic stresses. An extensive in silico characterization of the CitsWRKY gene family was performed. In this study, 77 WRKY genes from the Citrus sinensis genome were identified. Based on sequence alignment and phylogenetic analysis, these 77 proteins were classified into three main groups, with most WRKY proteins placed in group I (36 CitsWRKY), group II (35 CitsWRKY), and group III (6 CitsWRKY). Analysis of conserved motifs showed that most identified CitsWRKY proteins carry a conserved WRKY domain. Structural analysis of the genes showed that the number of introns in CitsWRKY genes varied from zero to five. CitsWRKY genes were found to be randomly distributed on all nine chromosomes. The expansion of this gene family may have resulted from 14 tandem and five segmental duplication events. Evaluation of synteny events suggested that some WRKY genes emerged before the divergence of C. sinensis and Arabidopsis. Expression analysis demonstrated that these genes frequently occur in developing tissues such as fruit, flowers, ovaries, meristem, and phloem (65%, 66%, and 85% in groups I, II , and III, respectively), and are stimulated by biotic or abiotic stresses (15%, 16%, and 10% in groups I, II, and III, respectively). The characterization and analysis of these genes will aid in the selection of candidate genes for future functional analyses of the WRKY family in citrus, which will expand our understanding of genetic determinants of stress tolerance.

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Expression profiles of a banana fruit linker histone H1 gene MaHIS1 and its interaction with a WRKY transcription factor

Abstract: MaHIS1 may be related to ripening and stress responses of banana fruit, and it also could interact with WRKY TF, which expands the very limited information regarding the functions of linker histone H1 in fruits.

Cited by 26 publications

References 51 publications

Overexpression of Camellia sinensis H1 histone gene confers abiotic stress tolerance in transgenic tobacco

Overexpression of Camellia sinensis H1 histone gene confers abiotic stress tolerance in transgenic tobacco

A systems biology perspective on the role of WRKY transcription factors in drought responses in plants

In silico genome-wide identification and phylogenetic analysis of the WRKY transcription factor family in sweet orange (Citrus sinensis)

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