ArticleBMC genomics2018
Genome-wide expression profiling of leaves and roots of watermelon in response to low nitrogen.
Article in BMC genomics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 44 citations in OpenAlex.
- Article
- Genome-wide identification of the GATA transcription factor family in ten Cucurbitaceae species and expression analysis of ClGATA genes in watermelon stress responses.BMC genomics · 2026Article
- Genome-wide identification of HXK gene families in cucumber and watermelon: CsHXK1 and ClHXK6 play key roles in responding to multiple stresses.BMC plant biology · 2026Article
- The DIR Gene Family in Watermelon: Evolution, Stress Expression Profiles, and Functional Exploration ofInternational journal of molecular sciences · 2025Article
- Heterologous WatermelonCurrent issues in molecular biology · 2025Article
- Transcriptome Profiling Reveals the Gene Network Responding to Low Nitrogen Stress in Wheat.Plants (Basel, Switzerland) · 2024Article
- MX1 and UBE2L6 are potential metaflammation gene targets in both diabetes and atherosclerosis.PeerJ · 2024Article
- Allelic variations of ClACO gene improve nitrogen uptake via ethylene-mediated root architecture in watermelon.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- An integrated nitrogen utilization gene network and transcriptome analysis reveal candidate genes in response to nitrogen deficiency inFrontiers in plant science · 2023Article
- Identification of Low-Nitrogen-Related miRNAs and Their Target Genes in Sugarcane and the Role ofInternational journal of molecular sciences · 2022Article
- Transcriptional regulation mechanism of wheat varieties with different nitrogen use efficiencies in response to nitrogen deficiency stress.BMC genomics · 2022Article
- Effect of Nickel Ions on the Physiological and Transcriptional Responses to Carbon and Nitrogen Metabolism in Tomato Roots under Low Nitrogen Levels.International journal of molecular sciences · 2022Article
- Deciphering the Potential Role of Symbiotic Plant Microbiome and Amino Acid Application on Growth Performance of Chickpea Under Field Conditions.Frontiers in plant science · 2022Article
- RNA-Seq analysis reveals an essential role of tyrosine metabolism pathway in response to root-rot infection in Gerbera hybrida.PloS one · 2019Article
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundNitrogen (N) is a key macronutrient required for plant growth and development. In this study, watermelon plants were grown under hydroponic conditions at 0.2 mM N, 4.5 mM N, and 9 mM N for 14 days.
resultsDry weight and photosynthetic assimilation at low N (0.2 mM) was reduced by 29 and 74% compared with high N (9 mM). The photochemical activity (Fv/Fm) was also reduced from 0.78 at high N to 0.71 at low N. The N concentration in the leaf, stem, and root of watermelon under low N conditions was reduced by 68, 104, and 108%, respectively compared with 9 mM N treatment after 14 days of N treatment. In the leaf tissues of watermelon grown under low N conditions, 9598 genes were differentially expressed, out of which 4533 genes (47.22%) were up-regulated whereas, 5065 genes (52.78%) were down-regulated compared with high N. Similarly in the root tissues, 3956 genes were differentially expressed, out of which 1605 genes were up-regulated (40.57%) and 2351 genes were down-regulated (59.43%), compared with high N. Our results suggest that leaf tissues are more sensitive to N deficiency compared with root tissues. The gene ontology (GO) analysis showed that the availability of N significantly affected 19 biological processes, 8 cell component metabolic pathways, and 3 molecular functions in the leaves; and 13 biological processes, 12 molecular functions, and 5 cell component metabolic pathways in the roots of watermelon. The low affinity nitrate transporters, high affinity nitrate transporters, ammonium transporters, genes related with nitrogen assimilation, and chlorophyll and photosynthesis were expressed differentially in response to low N. Three nitrate transporters (Cla010066, Cla009721, Cla012765) substantially responded to low nitrate supply in the root and leaf tissues. Additionally, a large number of transcription factors (1365) were involved in adaptation to low N availability. The major transcription factor families identified in this study includes MYB, AP2-EREBP, bHLH, C2H2 and NAC.
conclusionCandidate genes identified in this study for nitrate uptake and transport can be targeted and utilized for further studies in watermelon breeding and improvement programs to improve N uptake and utilization efficiency.
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