ArticlePlant biotechnology journal2019
Identification and characterization of a novel stay-green QTL that increases yield in maize.
Article in Plant biotechnology journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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Who cites it
44 citing papers in PubMed, 82 citations in OpenAlex.
- RNAi: the next wave of green agriculture, challenges, and bridging the translational gap.Plant cell reports · 2026Review
- Multi-year evaluation of silage yield, quality, and stability of maize (Zea mays L.) genotypes in the central Black Sea region of Türkiye.Scientific reports · 2026Article
- Mining of candidate genes regulating Gray leaf spot resistance in maize through integrative biological analysis.Molecular genetics and genomics : MGG · 2026Article
- Decoding the growth-defense dialectic: TOR signaling and developmental genetics in maize.Journal of experimental botany · 2026Review
- Integrated transcriptomic and BSA-seq analyses identify novel QTL and candidate genes for stay-green in maize.Frontiers in plant science · 2026Article
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Decoding nitrogen uptake efficiency in maize and sorghum: insights from comparative gene regulatory networks.The Plant journal : for cell and molecular biology · 2025Article
- Designing a nitrogen-efficient cold-tolerant maize for modern agricultural systems.The Plant cell · 2025Review
- Efficient mutagenesis and genotyping of maize inbreds using biolistics, multiplex CRISPR/Cas9 editing, and Indel-Selective PCR.Plant methods · 2025Article
- Stay-green trait improves yield, quality, and feeding value of forage oats under contrasting eco-sowing systems.Frontiers in plant science · 2025Article
- Validation of stay-green and stem reserve mobilization QTLs: physiological and gene expression approach.Frontiers in plant science · 2025Article
- A novel in vivo genome editing doubled haploid system for Zea mays L.Nature plants · 2024Article
- Integrative physiological and transcriptome analysis unravels the mechanism of low nitrogen use efficiency in burley tobacco.Plant direct · 2024Article
- Transcriptional Control of Seed Life: New Insights into the Role of the NAC Family.International journal of molecular sciences · 2024Review
- Genetic analysis of stay green related traits in maize with major gene plus polygenes mixed model.PloS one · 2024Article
- Remote sensing estimation of sugar beet SPAD based on un-manned aerial vehicle multispectral imagery.PloS one · 2024Article
- Prediction of wheat SPAD using integrated multispectral and support vector machines.Frontiers in plant science · 2024Article
- Characterization ofInternational journal of microbiology · 2024Article
- Comparative physiological and transcriptome analysis in cultivated and wild sugarcane species in response to hydrogen peroxide-induced oxidative stress.BMC genomics · 2023Article
- Genomic architecture of leaf senescence in sorghum (Sorghum bicolor).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
Corrections and comments
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Authors and funding
19 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Functional stay-green is a valuable trait that extends the photosynthetic period, increases source capacity and biomass and ultimately translates to higher grain yield. Selection for higher yields has increased stay-green in modern maize hybrids. Here, we report a novel QTL controlling functional stay-green that was discovered in a mapping population derived from the Illinois High Protein 1 (IHP1) and Illinois Low Protein 1 (ILP1) lines, which show very different rates of leaf senescence. This QTL was mapped to a single gene containing a NAC-domain transcription factor that we named nac7. Transgenic maize lines where nac7 was down-regulated by RNAi showed delayed senescence and increased both biomass and nitrogen accumulation in vegetative tissues, demonstrating NAC7 functions as a negative regulator of the stay-green trait. More importantly, crosses between nac7 RNAi parents and two different elite inbred testers produced hybrids with prolonged stay-green and increased grain yield by an average 0.29 megagram/hectare (4.6 bushel/acre), in 2 years of multi-environment field trials. Subsequent RNAseq experiments, one employing nac7 RNAi leaves and the other using leaf protoplasts overexpressing Nac7, revealed an important role for NAC7 in regulating genes in photosynthesis, chlorophyll degradation and protein turnover pathways that each contribute to the functional stay-green phenotype. We further determined the putative target of NAC7 and provided a logical extension for the role of NAC7 in regulating resource allocation from vegetative source to reproductive sink tissues. Collectively, our findings make a compelling case for NAC7 as a target for improving functional stay-green and yields in maize and other crops.
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