Diurnal Oscillations of Soybean Circadian Clock and Drought Responsive Genes

Marcolino-Gomes, Juliana; Rodrigues, Fabiana Aparecida; Fuganti-Pagliarini, Renata; Bendix, Claire; Nakayama, Thiago Jonas; Celaya, Brandon; Molinari, Hugo Bruno Correa; Oliveira, M. C. N. de; Harmon, Frank G.; Nepomuceno, Alexandre Lima

doi:10.1371/journal.pone.0086402

Cited by 105 publications

(114 citation statements)

References 80 publications

(128 reference statements)

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“…Transcription of GmLCL1 and GmLCL2 declined over the course of the day, and both of these genes were assigned to cluster 4 (Figure ). The transcription patterns of these genes match the patterns measured for chamber‐grown soybean (Liu et al., ; Marcolino‐Gomes et al., ).…”

Section: Resultssupporting

confidence: 74%

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Field‐grown soybean transcriptome shows diurnal patterns in photosynthesis‐related processes

2018

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Many plant physiological processes have diurnal patterns regulated by diurnal environmental changes and circadian rhythms, but the transcriptional underpinnings of many of these cycles have not been studied in major crop species under field conditions. Here, we monitored the transcriptome of field‐grown soybean ( Glycine max ) during daylight hours in the middle of the growing season with RNA ‐seq. The analysis revealed 21% of soybean genes were differentially expressed over the course of the day. Expression of some circadian‐related genes in field‐grown soybean differed from previously reported expression patterns measured in controlled environments. Many genes in functional groups contributing to and/or depending on photosynthesis showed differential expression, with patterns particularly evident in the chlorophyll synthesis pathway. Gene regulatory network inference also revealed seven diurnally sensitive gene nodes involved with circadian rhythm, transcription regulation, cellular processes, and water transport. This study provides a diurnal overview of the transcriptome for an economically important field‐grown crop and a basis for identifying pathways that could eventually be tailored to optimize diurnal regulation of carbon gain.

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Section: Resultssupporting

confidence: 74%

“…Expression of several other circadian‐regulated genes has been studied in chamber‐grown soybean (Marcolino‐Gomes et al., ). Therefore, we aimed to compare these previous findings to expression patterns from field‐grown soybean.…”

Section: Resultsmentioning

confidence: 99%

Field‐grown soybean transcriptome shows diurnal patterns in photosynthesis‐related processes

2018

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“…Being very sensitive to drought, soybean productivity may be lost up to 40 % in years that suffer severe drought (Thao and Tran 2012). To improve drought tolerance of soybean cultivars, many studies have been carried out to identify useful genes, including TCS-related genes that might be employed in genetic engineering (Mochida et al 2010;Le et al 2011;Marcolino-Gomes et al 2014). Previous studies revealed that soybean genome contains at least 21 HKs, 13 HP and HP-like proteins, and 46 RRs/PRRs (Mochida et al 2010;Schmutz et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Differential Expression of Two-Component System–Related Drought-Responsive Genes in Two Contrasting Drought-Tolerant Soybean Cultivars DT51 and MTD720 Under Well-Watered and Drought Conditions

et al. 2014

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Two-component systems (TCSs) have been shown to participate in plant responses to drought. In this study, results of real-time quantitative PCR (RT-qPCR) of 26 selected dehydration-responsive TCS-related genes in roots and shoots of two Vietnamese soybean cultivars (DT51 and MTD720) with contrasting drought-tolerant phenotypes suggest a positive correlation between the number of droughtinducible TCS genes and their drought-tolerant ability. In addition, expression analyses of the roots and shoots indicated that DT51 and MTD720 had distinct drought-responsive TCS expression profiles, suggesting that expression of TCS-related genes are genotype and tissue dependent. Furthermore, nine TCS genes (GmHK07, 16, GmHP08, GmRR04, 16, 32, 34, GmPRR39, and 44) potentially associated with enhanced drought tolerance were identified. Particularly, GmRR34, showing its higher expression levels under both normal and drought conditions in DT51 roots versus MTD720 roots, might be a potential positive regulator of drought tolerance. On the other hand, GmPRR44 was highly recommended as a potential negative regulator of drought tolerance because it exhibited lower expression levels in both tissues of the drought-tolerant DT51 than in those of the drought-sensitive MTD720 under both stressed and unstressed conditions. These two genes deserve in-depth characterization as promising candidates for development of soybean cultivars with improved drought tolerance by using genetic engineering.

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“…The clock controls a similar proportion of the transcriptome in rice, papaya, maize, soybean, and poplar (Zdepski et al, 2008;Hayes et al, 2010;Hoffman et al, 2010;Khan et al, 2010;Filichkin et al, 2011;Marcolino-Gomes et al, 2014). Genes subject to circadian clock regulation are central to many important physiological processes (Figure 1), including flowering time (Park et al, 1999;Yu et al, 2008), phytohormone synthesis and signaling Covington et al, 2008;Goodspeed et al, 2012), growth control (Nozue et al, 2007), metabolic activities (Gutierrez et al, 2008;Ni et al, 2009), abiotic stress responses (Legnaioli et al, 2009), and plant-pathogen interactions (Wang et al, 2011b).…”

Section: Introduction the Circadian Clockmentioning

confidence: 99%

Circadian Clock Genes Universally Control Key Agricultural Traits

2015

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Circadian clocks are endogenous timers that enable plants to synchronize biological processes with daily and seasonal environmental conditions in order to allocate resources during the most beneficial times of day and year. The circadian clock regulates a number of central plant activities, including growth, development, and reproduction, primarily through controlling a substantial proportion of transcriptional activity and protein function. This review examines the roles that alleles of circadian clock genes have played in domestication and improvement of crop plants. The focus here is on three groups of circadian clock genes essential to clock function in Arabidopsis thaliana: PSEUDO-RESPONSE REGULATORs, GIGANTEA, and the evening complex genes early flowering 3, early flowering 4, and lux arrhythmo. homologous genes from each group underlie quantitative trait loci that have beneficial influences on key agricultural traits, especially flowering time but also yield, biomass, and biennial growth habit. Emerging insights into circadian clock regulation of other fundamental plant processes, including responses to abiotic and biotic stresses, are discussed to highlight promising avenues for further crop improvement.

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Diurnal Oscillations of Soybean Circadian Clock and Drought Responsive Genes

Cited by 105 publications

References 80 publications

Field‐grown soybean transcriptome shows diurnal patterns in photosynthesis‐related processes

Field‐grown soybean transcriptome shows diurnal patterns in photosynthesis‐related processes

Differential Expression of Two-Component System–Related Drought-Responsive Genes in Two Contrasting Drought-Tolerant Soybean Cultivars DT51 and MTD720 Under Well-Watered and Drought Conditions

Circadian Clock Genes Universally Control Key Agricultural Traits

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