ArticlePloS one2026
Genome-wide identification of tomato B-RRs gene family and expression analysis in response to ABA and drought.
Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
B-type Response Regulators (B-RRs) play a crucial regulatory role in cytokinin signal transduction and are significant for plant development and stress resistance. However, studies on B-RRs in tomato are limited. In this study, we conducted a comprehensive analysis of the B-RRs gene family in tomato. A total of 10 genes encoding B-RRs transcription factors (named as SlRR1 to SlRR10) were identified. We analyzed the structure, chromosomal localization, phylogeny, protein motifs, and expression levels of these B-RRs genes. Gene structure analysis revealed that the B-RRs genes in tomato possess between 4-11 exons and 4-12 introns. These genes are distributed across eight chromosomes. Phylogenetic tree analysis classified the B-RRs genes into three distinct subfamilies: subfamily I contains 6 genes that share five motifs, subfamily II includes 1 gene that shares three motifs, and subfamily III comprises 3 genes that share four motifs. Expression analysis demonstrated that SlRR1, SlRR2, and SlRR5 are highly expressed in the vegetative meristem, while SlRR3, SlRR4, and SlRR9 exhibit high expression levels in the roots. SlRR7 was predominantly expressed in the fruits, whereas SlRR6, SlRR8, and SlRR10 show low expression or are undetectable in all tissues. Cis-element analysis revealed the presence of drought and abscisic acid (ABA) response elements in the promoters of the B-RRs genes. Correspondingly, their expression was significantly suppressed by both Polyethylene glycol (PEG) -induced drought stress and exogenous ABA treatment. Given the established antagonism between cytokinin and ABA, our findings suggest that tomato B-RRs may not only play a role in cytokinin signaling but also potentially serve as key nodes in the crosstalk between cytokinin and ABA pathways during drought stress responses. These findings indicate that the B-RRs genes in tomato are vital for plant growth, development, and stress resistance.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.