The Tomato DOF Daily Fluctuations 1, TDDF1 acts as flowering accelerator and protector against various stresses

Ewas, Mohamed; Khames, Eman; Ziaf, Khurram; Shahzad, Raheel; Nishawy, Elsayed; Ali, Farhan; Subthain, Hizar; Amar, Mohamed Hamdy; Ayaad, Mohammed; Ghaly, Omran; Luo, Jie

doi:10.1038/s41598-017-10399-7

Cited by 27 publications

(22 citation statements)

References 54 publications

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“…A group of five tomato DOF genes, homologous to Arabidopsis Cycling DOF Factors (CDFs) are reported to be involved in the control of flowering time and abiotic stress responses (Corrales et al, 2014). More recently, the TDDF1 gene was characterized and shown to be involved in circadian regulation and stress resistance (Ewas et al, 2017). Therefore, additional work is required to fully understand the role of DOF genes during tomato plant growth and development.…”

Section: Introductionmentioning

confidence: 99%

The DOF Transcription Factor SlDOF10 Regulates Vascular Tissue Formation During Ovary Development in Tomato

et al. 2019

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The formation of fruits is an important step in the life cycle of flowering plants. The process of fruit development is highly regulated and involves the interaction of a complex regulatory network of genes in both space and time. To identify regulatory genes involved in fruit initiation in tomato we analyzed the transcriptomic profile of ovaries from the parthenocarpic PsEND1:barnase transgenic line. This line was generated using the cytotoxic gene barnase targeted to the anthers with the PsEND1 anther-specific promoter from pea. Among the differentially expressed genes we identified SlDOF10 , a gene coding a DNA-binding with one finger (DOF) transcription factor which is activated in unpollinated ovaries of the parthenocarpic plants. SlDOF10 is preferentially expressed in the vasculature of the cotyledons and young leaves and in the root tip. During floral development, expression is visible in the vascular tissue of the sepals, the flower pedicel and in the ovary connecting the placenta with the developing ovules. The induction of the gene was observed in response to exogenous gibberellins and auxins treatments. To evaluate the gene function during reproductive development, we have generated SlDOF10 overexpressing and silencing stable transgenic lines. In particular, down-regulation of SlDOF10 activity led to a decrease in the area occupied by individual vascular bundles in the flower pedicel. Associated with this phenotype we observed induction of parthenocarpic fruit set. In summary, expression and functional analyses revealed a role for SlDOF10 gene in the development of the vascular tissue specifically during reproductive development highlighting the importance of this tissue in the process of fruit set.

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Section: Introductionmentioning

confidence: 99%

The DOF Transcription Factor SlDOF10 Regulates Vascular Tissue Formation During Ovary Development in Tomato

et al. 2019

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“…To date, studies in wheat (Watson et al, 2018), sorghum (Rizal et al, 2014), and rice (Tanaka et al, 2016) have reported that manipulating environmental variables allows producing seed in less time and increases the number of generations per year. Similarly, manipulating some environmental variables, such as water stress or temperature, can induce early flowering in tomato (Ewas et al, 2017). In this context, a combination of technologies such as a greenhouse with a controlled environment, marker-assisted selection for resistance, selection by the single seed descent method, and GS could be interesting and viable options for modern tomato breeding.…”

Section: Discussionmentioning

confidence: 99%

Prediction accuracy of genomic selection models for earliness in tomato

Hernández-Bautista

Lobato-Ortíz

García-Zavala

et al. 2020

Chil. j. agric. res.

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Genomic selection is considered to be an important tool in plant breeding programs. However, its application in the earliness of tomato (Solanum lycopersicum L.) has not been studied. The objective of the present study was to evaluate the prediction performance of six statistical models for six quantitative characteristics related to earliness in tomato. The study used phenotypic and genotypic data belonging to an F2 population consisting of 172 tomato plants. Simple sequence repeat (SSR) markers were obtained using genotypic information, and the genomic values were estimated by the following six different statistical models: Bayesian Lasso (BL), Bayesian ridge regression (BRR), BayesA, BayesB, BayesCπ, and reproducing kernel Hilbert spaces (RKHS) regression. The correlation values ranged from 0.17 to 0.57. The highest association values were found in days to flowering of the third inflorescence and 1000-seed weight, which were greater than 0.5. In general, all the models performed in a similar manner because only slight differences were observed among the correlation values. Specifically, BL, BayesB, and RKHS exhibited the highest Pearson correlation values for most traits. According to the results, genomic selection could be a useful tool to support tomato breeding focused on earliness.

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“…Therefore, it is very important using the expressed genes in developing the transgenic plant under different stress condition. There were other DOF genes information in major solanaceous food crops [54][55][56][57][58] (Table 1).…”

Section: Dof In Solanaceous Food Cropsmentioning

confidence: 99%

The Role of Major Transcription Factors in Solanaceous Food Crops under Different Stress Conditions: Current and Future Perspectives

Tolosa

Zhengbin

2020

Plants

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Plant growth, development, and productivity are adversely affected by environmental stresses such as drought (osmotic stress), soil salinity, cold, oxidative stress, irradiation, and diverse diseases. These impacts are of increasing concern in light of climate change. Noticeably, plants have developed their adaptive mechanism to respond to environmental stresses by transcriptional activation of stress-responsive genes. Among the known transcription factors, DoF, WRKY, MYB, NAC, bZIP, ERF, ARF and HSF are those widely associated with abiotic and biotic stress response in plants. Genome-wide identification and characterization analyses of these transcription factors have been almost completed in major solanaceous food crops, emphasizing these transcription factor families which have much potential for the improvement of yield, stress tolerance, reducing marginal land and increase the water use efficiency of solanaceous crops in arid and semi-arid areas where plant demand more water. Most importantly, transcription factors are proteins that play a key role in improving crop yield under water-deficient areas and a place where the severity of pathogen is very high to withstand the ongoing climate change. Therefore, this review highlights the role of major transcription factors in solanaceous crops, current and future perspectives in improving the crop traits towards abiotic and biotic stress tolerance and beyond. We have tried to accentuate the importance of using genome editing molecular technologies like CRISPR/Cas9, Virus-induced gene silencing and some other methods to improve the plant potential in giving yield under unfavorable environmental conditions.

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The Tomato DOF Daily Fluctuations 1, TDDF1 acts as flowering accelerator and protector against various stresses

Cited by 27 publications

References 54 publications

The DOF Transcription Factor SlDOF10 Regulates Vascular Tissue Formation During Ovary Development in Tomato

The DOF Transcription Factor SlDOF10 Regulates Vascular Tissue Formation During Ovary Development in Tomato

Prediction accuracy of genomic selection models for earliness in tomato

The Role of Major Transcription Factors in Solanaceous Food Crops under Different Stress Conditions: Current and Future Perspectives

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