Identification and expression analysis of cytokinin response regulators in Fragaria vesca

Yang, Yingchun; Jiang, Yun; Mi, Xianna; Gan, Longzhan; Gu, Tingting; Ding, Jing; Li, Yi

doi:10.1007/s11738-016-2213-8

Cited by 11 publications

(11 citation statements)

References 69 publications

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“…CcRR12, CcRR13, CcRR20 and CcRR21 were excluded from further work of this study because of their low activities in the root. Promoters of CcRRs contained the certain elements related to hormone responses and abiotic stresses, indicating their function may related to the hormone signaling and abiotic stress response same as in other plants ( Jain et al., 2006 ; Ramírez-Carvajal et al., 2008 ; Tsai et al., 2012 ; Yang et al., 2016 ). This was proved by the results that 8 type A and type B CcRRs drastically responded to the treatments of exogenous hormones and abiotic stresses, partially as reported by Huang et al.…”

Section: Discussionmentioning

confidence: 94%

“…Type C ARRs have a domain similar to that of the type A ARRs in structure. However, their expression could not be induced by cytokinin (Yang et al, 2016). Pseudo ARRs lack conserved residues for phosphorylation and some of them contain a CCT (for CONSTANS, CONSTANS-like and TOC1) motif in Ctermini (Strayer et al, 2000;To et al, 2007;Li et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Mining key genes related to root morphogenesis through genome-wide identification and expression analysis of RR gene family in citrus

Zhang

Wang

et al. 2022

Front. Plant Sci.

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Morphogenesis of root is a vital factor to determine the root system architecture. Cytokinin response regulators (RRs) are the key transcription factors in cytokinin signaling, which play important roles in regulating the root morphogenesis. In this study, 29 RR proteins, including 21 RRs and 8 pseudo RRs, were identified from the genome of citrus, and termed as CcRR1-21 and CcPRR1-8, respectively. Phylogenetic analysis revealed that the 29 CcRRs could be classified into four types according to their representative domains. Analysis of cis-elements of CcRRs indicated that they were possibly involved in the regulation of growth and abiotic stress resistance in citrus. Within the type A and type B CcRRs, CcRR4, CcRR5, CcRR6 and CcRR16 highly expressed in roots and leaves, and dramatically responded to the treatments of hormones and abiotic stresses. CcRR2, CcRR10, CcRR14 and CcRR19 also highly expressed in roots under different treatments. Characteristic analysis revealed that the above 8 CcRRs significantly and differentially expressed in the three zones of root, suggesting their functional differences in regulating root growth and development. Further investigation of the 3 highly and differentially expressed CcRRs, CcRR5, CcRR10 and CcRR14, in 9 citrus rootstocks showed that the expression of CcRR5, CcRR10 and CcRR14 was significantly correlated to the length of primary root, the number of lateral roots, and both primary root and the number of lateral roots, respectively. Results of this study indicated that CcRRs were involved in regulating the growth and development of the root in citrus with different functions among the members.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Mining key genes related to root morphogenesis through genome-wide identification and expression analysis of RR gene family in citrus

Zhang

Wang

et al. 2022

Front. Plant Sci.

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“…This indicates that cytokinin could serve as a signal for thermomorphogenesis. It is also likely that a higher temperature sensitizes cytokinin signalling, which could explain why a transient increase in the active cytokinin pool is followed by its significant depletion [ 134 , 135 ], and downregulation in cytokinin metabolism genes and the expression of ARR-type A orthologs in strawberry ( Fragaria vesca ) [ 143 , 144 ]. It has also been proposed that heat stress-induced cytokinin depletion can promote stomatal closure, as this process is inhibited in plants with increased cytokinin levels [ 135 ].…”

Section: Temperature and Cytokininmentioning

confidence: 99%

Cytokinin at the Crossroads of Abiotic Stress Signalling Pathways

Pavlů

Novák

Koukalová

et al. 2018

IJMS

132

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Cytokinin is a multifaceted plant hormone that plays major roles not only in diverse plant growth and development processes, but also stress responses. We summarize knowledge of the roles of its metabolism, transport, and signalling in responses to changes in levels of both macronutrients (nitrogen, phosphorus, potassium, sulphur) and micronutrients (boron, iron, silicon, selenium). We comment on cytokinin’s effects on plants’ xenobiotic resistance, and its interactions with light, temperature, drought, and salinity signals. Further, we have compiled a list of abiotic stress-related genes and demonstrate that their expression patterns overlap with those of cytokinin metabolism and signalling genes.

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“…The expression pattern of A-ARRs was similar to that of B-ARR, and all of them exhibited higher expression levels in OLI and OLII. CK involvement has been reported in the regulation of flowering in many plants, including rose [ 45 ], longan [ 47 ], apple [ 48 ], and Fragaria vesca [ 49 ]. The differential expression patterns of AHKs, AHPs, B-ARR, and A-ARRs in the initiation of flowering indicate that CKs are involved in flowering initiation in C. oleifera during stages I and II.…”

Section: Discussionmentioning

confidence: 99%

Transcriptome Analysis Reveals Putative Induction of Floral Initiation by Old Leaves in Tea-Oil Tree (Camellia oleifera ‘changlin53’)

Guo

Zhong

Tian

et al. 2022

IJMS

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Floral initiation is a major phase change in the spermatophyte, where developmental programs switch from vegetative growth to reproductive growth. It is a key phase of flowering in tea-oil trees that can affect flowering time and yield, but very little is known about the molecular mechanism of floral initiation in tea-oil trees. A 12-year-old Camellia oleifera (cultivar ‘changlin53’) was the source of experimental materials in the current study. Scanning electron microscopy was used to identify the key stage of floral initiation, and transcriptome analysis was used to reveal the transcriptional regulatory network in old leaves involved in floral initiation. We mined 5 DEGs related to energy and 55 DEGs related to plant hormone signal transduction, and we found floral initiation induction required a high level of energy metabolism, and the phytohormones signals in the old leaves regulate floral initiation, which occurred at stage I and II. Twenty-seven rhythm-related DEGs and 107 genes associated with flowering were also identified, and the circadian rhythm interacted with photoperiod pathways to induce floral initiation. Unigene0017292 (PSEUDO-RESPONSE REGULATOR), Unigene0046809 (LATE ELONGATED HYPOCOTYL), Unigene0009932 (GIGANTEA), Unigene0001842 (CONSTANS), and Unigene0084708 (FLOWER LOCUS T) were the key genes in the circadian rhythm-photoperiod regulatory network. In conjunction with morphological observations and transcriptomic analysis, we concluded that the induction of floral initiation by old leaves in C. oleifera ‘changlin53’ mainly occurred during stages I and II, floral initiation was completed during stage III, and rhythm–photoperiod interactions may be the source of the main signals in floral initiation induced by old leaves.

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Identification and expression analysis of cytokinin response regulators in Fragaria vesca

Cited by 11 publications

References 69 publications

Mining key genes related to root morphogenesis through genome-wide identification and expression analysis of RR gene family in citrus

Mining key genes related to root morphogenesis through genome-wide identification and expression analysis of RR gene family in citrus

Cytokinin at the Crossroads of Abiotic Stress Signalling Pathways

Transcriptome Analysis Reveals Putative Induction of Floral Initiation by Old Leaves in Tea-Oil Tree (Camellia oleifera ‘changlin53’)

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