scholarly journals A Y-Encoded Suppressor of Feminization Arose via Lineage-Specific Duplication of a Cytokinin Response Regulator in Kiwifruit

2018 ◽  
Vol 30 (4) ◽  
pp. 780-795 ◽  
Author(s):  
Takashi Akagi ◽  
Isabelle M. Henry ◽  
Haruka Ohtani ◽  
Takuya Morimoto ◽  
Kenji Beppu ◽  
...  
Keyword(s):  
Response Regulator ◽  
Cytokinin Response

Genome-wide expression profiling of ARABIDOPSIS RESPONSE REGULATOR 7(ARR7) overexpression in cytokinin response

2006 ◽  
Vol 277 (2) ◽  
pp. 115-137 ◽  
Author(s):  
Dong Ju Lee ◽  
Jin-Young Park ◽  
Su-Jin Ku ◽  
Young-Min Ha ◽  
Sunmi Kim ◽  
...  
Keyword(s):  
Expression Profiling ◽  
Response Regulator ◽  
Genome Wide ◽  
Cytokinin Response ◽  
Genome Wide Expression

scholarly journals The Type-B Cytokinin Response Regulator ARR1 Inhibits Shoot Regeneration in an ARR12-Dependent Manner in Arabidopsis

2020 ◽  
Vol 32 (7) ◽  
pp. 2271-2291 ◽  
Author(s):  
Zhenhua Liu ◽  
Xuehuan Dai ◽  
Juan Li ◽  
Na Liu ◽  
Xiangzheng Liu ◽  
...  
Keyword(s):  
Shoot Regeneration ◽  
Response Regulator ◽  
Dependent Manner ◽  
Type B ◽  
Cytokinin Response

Involvement of cytokinin response regulator RhRR1 in the control of flowering

2019 ◽  
Vol 41 (7) ◽  
Author(s):  
Lin Wu ◽  
Ming Feng ◽  
Yangchao Jia ◽  
Honglei Li ◽  
Yiqing Liu ◽  
...  
Keyword(s):  
Response Regulator ◽  
Cytokinin Response

scholarly journals Meeting at the DNA: Specifying Cytokinin Responses through Transcription Factor Complex Formation

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1458
Author(s):  
Jan Erik Leuendorf ◽  
Thomas Schmülling
Keyword(s):  
Plant Hormone ◽  
Target Genes ◽  
Response Regulator ◽  
Biological Processes ◽  
Type B ◽  
Cytokinin Signaling ◽  
Expression Control ◽  
Cytokinin Response ◽  
Transcription Factor Complex ◽  
Targeted Approach

Cytokinin is a plant hormone regulating numerous biological processes. Its diverse functions are realized through the expression control of specific target genes. The transcription of the immediate early cytokinin target genes is regulated by type-B response regulator proteins (RRBs), which are transcription factors (TFs) of the Myb family. RRB activity is controlled by phosphorylation and protein degradation. Here, we focus on another step of regulation, the interaction of RRBs among each other or with other TFs to form active or repressive TF complexes. Several examples in Arabidopsis thaliana illustrate that RRBs form homodimers or complexes with other TFs to specify the cytokinin response. This increases the variability of the output response and provides opportunities of crosstalk between the cytokinin signaling pathway and other cellular signaling pathways. We propose that a targeted approach is required to uncover the full extent and impact of RRB interaction with other TFs.

scholarly journals Genome sequencing and population genomic analyses provide insights into the adaptive landscape of silver birch

2017 ◽  
Vol 49 (6) ◽  
pp. 904-912 ◽  
Author(s):  
Jarkko Salojärvi ◽  
Olli-Pekka Smolander ◽  
Kaisa Nieminen ◽  
Sitaram Rajaraman ◽  
Omid Safronov ◽  
...  
Keyword(s):  
Response Regulator ◽  
Nuclear Genome ◽  
Light Response ◽  
Silver Birch ◽  
Adaptive Landscape ◽  
Effective Population ◽  
Individual Gene ◽  
Wood Development ◽  
Environmental Responses ◽  
Cytokinin Response

Abstract Silver birch (Betula pendula) is a pioneer boreal tree that can be induced to flower within 1 year. Its rapid life cycle, small (440-Mb) genome, and advanced germplasm resources make birch an attractive model for forest biotechnology. We assembled and chromosomally anchored the nuclear genome of an inbred B. pendula individual. Gene duplicates from the paleohexaploid event were enriched for transcriptional regulation, whereas tandem duplicates were overrepresented by environmental responses. Population resequencing of 80 individuals showed effective population size crashes at major points of climatic upheaval. Selective sweeps were enriched among polyploid duplicates encoding key developmental and physiological triggering functions, suggesting that local adaptation has tuned the timing of and cross-talk between fundamental plant processes. Variation around the tightly-linked light response genes PHYC and FRS10 correlated with latitude and longitude and temperature, and with precipitation for PHYC. Similar associations characterized the growth-promoting cytokinin response regulator ARR1, and the wood development genes KAK and MED5A.

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