Tomato YABBY2b controls plant height through regulating indole-3-acetic acid-amido synthetase (GH3.8) expression

Sun, Meihua; Li, Hui; Li, Yanbing; Xiang, Hengzuo; Liu, Yudong; He, Yi; Qi, Mingfang; Li, Tianlai

doi:10.1016/j.plantsci.2020.110530

Cited by 29 publications

(13 citation statements)

References 30 publications

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“…IAA is the most abundant auxin in plants, and IAA‐amido synthetase helps with its homeostasis by leading to IAA‐amino acid conjugates (Ludwig‐Müller, 2011 ). Increased expression of IAA‐amido synthetase produces highly reduced growth forms, altered architecture, and shortened roots (Ding et al., 2021 ; Sun et al., 2020 ). In O. sativa , overexpression of IAA‐amido synthetase resulted in improved drought tolerance (Zhang et al., 2009 ), fungal pathogen response (Ding et al., 2008 ; Domingo et al., 2009 ), and altered growth.…”

Section: Discussionmentioning

confidence: 99%

Strategies of tolerance reflected in two North American maple genomes

et al. 2022

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Maples (the genus Acer) represent important and beloved forest, urban, and ornamental trees distributed throughout the Northern hemisphere. They exist in a diverse array of native ranges and distributions, across spectrums of tolerance or decline, and have varying levels of susceptibility to biotic and abiotic stress. Among Acer species, several stand out in their importance to economic interest. Here we report the first two chromosome-scale genomes for North American species, Acer negundo and Acer saccharum. Both assembled genomes contain scaffolds corresponding to 13 chromosomes, with A. negundo at a length of 442 Mb, an N50 of 32 Mb, and 30 491 genes, and A. saccharum at a length of 626 Mb, an N50 of 46 Mb, and 40 074 genes. No recent whole genome duplications were detected, though A. saccharum has local gene duplication and more recent bursts of transposable elements, as well as a large-scale translocation between two chromosomes. Genomic comparison revealed that A. negundo has a smaller genome with recent gene family evolution that is predominantly contracted and expansions that are potentially related to invasive tendencies and tolerance to abiotic stress. Examination of RNA sequencing data obtained from A. saccharum given long-term aluminum and calcium soil treatments at the Hubbard Brook Experimental Forest provided insights into genes involved in the aluminum stress response at the systemic level, as well as signs of compromised processes upon calcium deficiency, a condition contributing to maple decline.

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Section: Discussionmentioning

confidence: 99%

Strategies of tolerance reflected in two North American maple genomes

et al. 2022

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“…The phytohormone IAA plays a vital role in plant growth ( Zhao, 2010 ) and indole-3-glycerol phosphate synthase serves as a branchpoint compound in the Trp-independent IAA de novo biosynthetic pathway ( Ouyang et al, 2000 ). Sun et al (2020) reported that YABBY2b controls plant height by regulating indole-3-acetic acid-amido synthetase expression in tomato and demonstrated that silencing the indole-3-acetic acid-amido synthetase gene increased plant height. As mentioned above, the indole-3-glycerol phosphate synthase gene Sobic.004G143900 was also down-regulated in the stage1_stage2 comparison.…”

Section: Discussionmentioning

confidence: 99%

Identification of Candidate Forage Yield Genes in Sorghum (Sorghum bicolor L.) Using Integrated Genome-Wide Association Studies and RNA-Seq

et al. 2022

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Genetic dissection of forage yield traits is critical to the development of sorghum as a forage crop. In the present study, association mapping was performed with 85,585 SNP markers on four forage yield traits, namely plant height (PH), tiller number (TN), stem diameter (SD), and fresh weight per plant (FW) among 245 sorghum accessions evaluated in four environments. A total of 338 SNPs or quantitative trait nucleotides (QTNs) were associated with the four traits, and 21 of these QTNs were detected in at least two environments, including four QTNs for PH, ten for TN, six for SD, and one for FW. To identify candidate genes, dynamic transcriptome expression profiling was performed at four stages of sorghum development. One hundred and six differentially expressed genes (DEGs) that were enriched in hormone signal transduction pathways were found in all stages. Weighted gene correlation network analysis for PH and SD indicated that eight modules were significantly correlated with PH and that three modules were significantly correlated with SD. The blue module had the highest positive correlation with PH and SD, and the turquoise module had the highest negative correlation with PH and SD. Eight candidate genes were identified through the integration of genome-wide association studies (GWAS) and RNA sequencing. Sobic.004G143900, an indole-3-glycerol phosphate synthase gene that is involved in indoleacetic acid biosynthesis, was down-regulated as sorghum plants grew in height and was identified in the blue module, and Sobic.003G375100, an SD candidate gene, encoded a DNA repair RAD52-like protein 1 that plays a critical role in DNA repair-linked cell cycle progression. These findings demonstrate that the integrative analysis of omics data is a promising approach to identify candidate genes for complex traits.

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“…We also found that B. megaterium could promote tomato flowering 8.2 days earlier and increase the average fruit ears by 1.1. The common natural auxin secreted is indole-3-acetic acid, which can promote the growth and morphological development of the root system and enhance the uptake of soil nutrients by plants [ 24 ]. Therefore, the growth of the plant root system can be promoted by secreting indoleacetic acid and cytokinin.…”

Section: Discussionmentioning

confidence: 99%

A Genomic Analysis of Bacillus megaterium HT517 Reveals the Genetic Basis of Its Abilities to Promote Growth and Control Disease in Greenhouse Tomato

Yang

Zhao

Yang

et al. 2022

International Journal of Genomics

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Bacillus megaterium is well known as a plant growth-promoting rhizobacterium, but the relevant molecular mechanisms remain unclear. This study aimed to elucidate the effects of B. megaterium HT517 on the growth and development of and the control of disease in greenhouse tomato and its mechanism of action. A pot experiment was conducted to determine the effect of B. megaterium on tomato growth, and this experiment included the HT517 group ( 3.2 × 10 8 cfu/pot) and the control group (inoculated with the same amount of sterilized suspension). An antagonistic experiment and a plate confrontation experiment were conducted to study the antagonistic effect of B. megaterium and Fusarium oxysporum f.sp. lycopersici. Liquid chromatography–mass spectrometry was used to determine the metabolite composition and metabolic pathway of HT517. PacBio+Illumina HiSeq sequencing was utilized for map sequencing of the samples. An in-depth analysis of the functional genes related to the secretion of these substances by functional bacteria was conducted. HT517 could secrete organic acids that solubilize phosphorus, promote root growth, secrete auxin, which that promotes early flowering and fruiting, and alkaloids, which control disease, and reduce the incidence of crown rot by 51.0%. The complete genome sequence indicated that the strain comprised one circular chromosome with a length of 5,510,339 bp (including four plasmids in the genome), and the GC content accounted for 37.95%. Seven genes (pyk, aceB, pyc, ackA, gltA, buk, and aroK) related to phosphate solubilization, five genes (trpA, trpB, trpS, TDO2, and idi) related to growth promotion, eight genes (hpaB, pheS, pheT, ileS, pepA, iucD, paaG, and kamA) related to disease control, and one gene cluster of synthetic surfactin were identified in this research. The identification of molecular biological mechanisms for extracellular secretion by the HT517 strain clarified that its organic acids solubilized phosphorus, that auxin promoted growth, and that alkaloids controlled tomato diseases.

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Tomato YABBY2b controls plant height through regulating indole-3-acetic acid-amido synthetase (GH3.8) expression

Cited by 29 publications

References 30 publications

Strategies of tolerance reflected in two North American maple genomes

Strategies of tolerance reflected in two North American maple genomes

Identification of Candidate Forage Yield Genes in Sorghum (Sorghum bicolor L.) Using Integrated Genome-Wide Association Studies and RNA-Seq

A Genomic Analysis of Bacillus megaterium HT517 Reveals the Genetic Basis of Its Abilities to Promote Growth and Control Disease in Greenhouse Tomato

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