Transcription factors in developmental genetics and the evolution of higher plants

Лутова, Л. А.; Додуева, И. Е.; Lebedeva, Maria A.; Tvorogova, Varvara E.

doi:10.1134/s1022795415030084

Cited by 16 publications

(12 citation statements)

References 123 publications

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“…The WOX5 gene is the central regulator of root apical meri-stem (Sarkar et al, 2007), and according to our data, it also regulates the development of symbiotic nodules in legumes (Osipova et al, 2012). Local analysis of the expression of these genes in the crop-roots and spontaneous tumors of radish lines using reporter constructs carrying the glucuronidase (GUS) showed different spatial expression patterns (Lebedeva et al, 2015;Lutova et al, 2015). Before the initiation of tumors, the expression of both genes takes place in the cambium -in the case of WOX5, it is confined to the part of cambium opposite the proto-xylem pole.…”

Section: Geneticssupporting

confidence: 55%

“…The functions of TF KNOX are known to be associated with the control of cell proliferation mainly in shoot meristems (Tsuda and Hake, 2015), while TF WOX is necessary for maintaining stem cells in undifferentiated status (Dolzblasz et al, 2016). The literature describes in detail the role of TF KNOX and WOX in the development of the main plant meristems -the shoot and root apical meristem and also the lateral meristem cambium (reviewed in Lutova et al, 2015); in recent years, data have been obtained on the role of these TFs in the development of some types of irregular secondary meristem (Osipova et al, 2012;Azarakhsh et al, 2015).…”

Section: Geneticsmentioning

confidence: 99%

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Genetic control of regeneration processes of radish plants in vitro: from phenotype to genotype

Lutova

Додуева

2019

BioComm

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This review highlights the years of research on the genetics of in vitro regeneration in higher plants conducted at the Department of Genetics and Biotechnology of Saint Petersburg State University. The genetic collection of radish (Raphanus sativus) created at the department by selfing of individual plants from three cultivars was used as a model in these studies. Some radish inbred lines from the genetic collection form spontaneous tumors in the roots and are also used to study mechanisms of tumor growth in higher plants. It was revealed that radish lines that differed in the ability to form tumors also contrastingly differed in the reaction of their explants to auxin and cytokinin in vitro, which reflects a difference in the levels of these hormones in the tissues of related tumorous and non-tumorous radish lines. Moreover, high concentrations of cytokinins in cultural medium induced tumor formation in the regenerated plants of tumorous radish lines. The presence of meristematic zones in spontaneous tumors in radish lines, as well as in crown gall tumors induced by Agrobacterium tumefaciens and cytokinin-induced tumors made it possible to reveal the role of the main meristem regulators, such as KNOX and WOX family transcription factors and the CLAVATA system, in both the process of tumor growth and regeneration in plants. Analysis of the expression of meristem-specific genes during the development of spontaneous and induced tumors in radish as well as in regenerated radish plants confirmed this assumption.

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Section: Geneticssupporting

confidence: 55%

Section: Geneticsmentioning

confidence: 99%

Genetic control of regeneration processes of radish plants in vitro: from phenotype to genotype

Lutova

Додуева

2019

BioComm

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“…Transcription factors (TFs) play the central roles as drivers of gene expression in all living organisms since they control the rate of genetic transcription and coordinate the action of any genetic network [103,104]. The studies evidence that the various family of TFs are associated with the growth and development of the aboveground and underground parts of plants, abiotic stress responses, response to pathogens and many more [103,[105][106][107][108][109]. Thus, identification of the regulatory TFs of the reported RNAi genes can help to improve our understanding of gene silencing process in C. sinensis.…”

Section: Regulatory Relationship Between Tfs and Rnai Genesmentioning

confidence: 99%

In silico identification and characterization of AGO, DCL and RDR gene families and their associated regulatory elements in sweet orange (Citrus sinensis L.)

et al. 2020

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RNA interference (RNAi) plays key roles in post-transcriptional and chromatin modification levels as well as regulates various eukaryotic gene expressions which are involved in stress responses, development and maintenance of genome integrity during developmental stages. The whole mechanism of RNAi pathway is directly involved with the gene-silencing process by the interaction of Dicer-Like (DCL), Argonaute (AGO) and RNA-dependent RNA polymerase (RDR) gene families and their regulatory elements. However, these RNAi gene families and their sub-cellular locations, functional pathways and regulatory components were not extensively investigated in the case of economically and nutritionally important fruit plant sweet orange (Citrus sinensis L.). Therefore, in silico characterization, gene diversity and regulatory factor analysis of RNA silencing genes in C. sinensis were conducted by using the integrated bioinformatics approaches. Genome-wide comparison analysis based on phylogenetic tree approach detected 4 CsDCL, 8 CsAGO and 4 CsRDR as RNAi candidate genes in C. sinensis corresponding to the RNAi genes of model plant Arabidopsis thaliana. The domain and motif composition and gene structure analyses for all three gene families exhibited almost homogeneity within the same group members. The Gene Ontology enrichment analysis clearly indicated that the predicted genes have direct involvement into the gene-silencing and other important pathways. The key regulatory transcription factors (TFs) MYB, Dof, ERF, NAC, MIKC_MADS, WRKY and bZIP were identified by their interaction network analysis with the predicted genes. The cis-acting regulatory elements associated with the predicted genes were detected as responsive to light, stress and hormone functions. Furthermore, the expressed sequence tag (EST) analysis showed that these RNAi candidate genes were highly expressed in fruit and leaves indicating their organ specific functions. Our genome-wide comparison and integrated bioinformatics analyses provided some necessary information about sweet orange RNA silencing components that would pave a ground for further investigation of functional mechanism of the predicted genes and their regulatory factors.

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“…Many studies have demonstrated that WUSCHEL-RELATED HOMEOBOX ( WOX ) transcription factors are involved in controlling the early stages of embryogenesis, the maintenance of meristem activity, and the formation of lateral organs, such as lateral roots, leaves, and floral primordia 1 , 2 . Moreover, it has been reported that the action of WOX s is regulated by CLE peptides (CLAVATA3/EMBRYO SURROUNDING REGION-RELATED) 3 and by the two major plant hormones: (1) auxins in the root apical meristem (RAM) and the cambium, and (2) cytokinins in the shoot apical meristem (SAM) 4 .…”

Section: Introductionmentioning

confidence: 99%

WOX genes expression during the formation of new lateral roots from secondary structures in Populus nigra (L.) taproot

Baesso

Terzaghi

Chiatante

et al. 2020

Sci Rep

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Despite the large amounts of data available on lateral root formation, little is known about their initiation from secondary structures. In the present work, we applied a bending treatment to Populus nigra (L.) woody taproots to induce the formation of new lateral roots. The development of lateral roots was monitored by stereomicroscopic examination of cross-sections. Tissues were sampled from the bending zone in the proximity of the vascular cambium before (time 0) and after the application of bending at three different time points (24, 48, and 72 h) and analyzed for the expression of P. nigra WOX homologs. The initiation of new lateral roots was observed to originate from the vascular cambium zone and was followed by primordium formation and root emergence. PnWOX4a, PnWOX4b, PnWOX5a, PnWOX5b, PnWOX11/12a, and PnWOX11/12b were shown to be expressed during the formation of new lateral roots at different developmental stages. The mechanical stress simulated by bending treatment was shown to activate the molecular mechanism leading to the expression of WOX genes, which are hypothesized to control SLR formation in the cambium zone of poplar taproot.

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Transcription factors in developmental genetics and the evolution of higher plants

Cited by 16 publications

References 123 publications

Genetic control of regeneration processes of radish plants in vitro: from phenotype to genotype

Genetic control of regeneration processes of radish plants in vitro: from phenotype to genotype

In silico identification and characterization of AGO, DCL and RDR gene families and their associated regulatory elements in sweet orange (Citrus sinensis L.)

WOX genes expression during the formation of new lateral roots from secondary structures in Populus nigra (L.) taproot

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