Comprehensive genomic characterisation of the NAC transcription factor family and its response to drought stress in <i>Eucommia ulmoides</i>

Wang, Qi; Hu, FengCheng; Yao, ZhaoQun; Zhao, XinFeng; Chu, GuangMing; Ye, Jing

doi:10.7717/peerj.16298

Cited by 2 publications

(1 citation statement)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The NAC family is a crucial group of transcription factors specific to plants, with its members playing key roles in multiple physiological processes, including secondary growth regulation, the response to abiotic stress, the development of meristems, and hormone signal transduction [14][15][16]. For example, the SND1 gene plays a significant role in cellulose synthesis and secondary cell wall formation.…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification and Expression Analysis of Salt-Tolerance-Associated NAC Family Genes in Cyclocarya paliurus

Yang,

An,

et al. 2024

Forests

View full text Add to dashboard Cite

Soil salinity affects approximately 20% of the world’s arable land, presenting a significant challenge for studying the mechanisms by which plants adapt to saline environments. Cyclocarya paliurus, an invaluable research model due to its ecological and medicinal significance, is primarily concentrated in central and southern China. Nevertheless, Cyclocarya paliurus faces challenges from environmental factors such as soil salinization, which adversely impacts its growth, subsequently affecting the yield and quality of its bioactive compounds. The NAC gene family, a critical group of plant-specific transcription factors, plays pivotal roles in responding to abiotic stresses. However, there has not yet been any studies on NAC genes under salt stress in Cyclocarya paliurus. In this study, we identified 132 NAC genes within the Cyclocarya paliurus genome. Our analysis of the conserved structures and gene organization revealed a high degree of conservation in the proteins of the CpNAC gene family. Cis-element analysis unveiled the participation of these genes in a variety of biological processes, including light responses, phytohormone responses, cell cycle responses, and abiotic stress responses. Under salt stress conditions, the expression of 35 CpNAC genes changed significantly, indicating a response to salt treatment. Furthermore, we provided additional evidence for the identification of the NAC gene family and revealed their potential positive regulatory role in signal transduction by conducting a transcriptional activation activity analysis of CpNAC132(D) and CpNAC040, which are homologous to Arabidopsis thaliana NAC062/91 and NAC103, respectively. This research not only advances our comprehension of the salt stress adaptation in Cyclocarya paliurus but also provides robust support for future investigations into plant responses to environmental stress and the cultivation of salt-tolerant crops.

show abstract

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification and Expression Analysis of Salt-Tolerance-Associated NAC Family Genes in Cyclocarya paliurus

Yang,

An,

et al. 2024

Forests

View full text Add to dashboard Cite

show abstract

Differential Gene Expression in Contrasting Common Bean Cultivars for Drought Tolerance during an Extended Dry Period

Ponce,

Bugança,

da Silva

et al. 2024

Genes

View full text Add to dashboard Cite

Common beans (Phaseolus vulgaris L.), besides being an important source of nutrients such as iron, magnesium, and protein, are crucial for food security, especially in developing countries. Common bean cultivation areas commonly face production challenges due to drought occurrences, mainly during the reproductive period. Dry spells last approximately 20 days, enough time to compromise production. Hence, it is crucial to understand the genetic and molecular mechanisms that confer drought tolerance to improve common bean cultivars’ adaptation to drought. Sixty six RNASeq libraries, generated from tolerant and sensitive cultivars in drought time sourced from the R5 phenological stage at 0 to 20 days of water deficit were sequenced, generated over 1.5 billion reads, that aligned to 62,524 transcripts originating from a reference transcriptome, as well as 6673 transcripts obtained via de novo assembly. Differentially expressed transcripts were functionally annotated, revealing a variety of genes associated with molecular functions such as oxidoreductase and transferase activity, as well as biological processes related to stress response and signaling. The presence of regulatory genes involved in signaling cascades and transcriptional control was also highlighted, for example, LEA proteins and dehydrins associated with dehydration protection, and transcription factors such as WRKY, MYB, and NAC, which modulate plant response to water deficit. Additionally, genes related to membrane and protein protection, as well as water and ion uptake and transport, were identified, including aquaporins, RING-type E3 ubiquitin transferases, antioxidant enzymes such as GSTs and CYPs, and thioredoxins. This study highlights the complexity of plant response to water scarcity, focusing on the functional diversity of the genes involved and their participation in the biological processes essential for plant adaptation to water stress. The identification of regulatory and cell protection genes offers promising prospects for genetic improvement aiming at the production of common bean varieties more resistant to drought. These findings have the potential to drive sustainable agriculture, providing valuable insights to ensure food security in a context of climate change.

show abstract

Comprehensive genomic characterisation of the NAC transcription factor family and its response to drought stress in Eucommia ulmoides

Cited by 2 publications

References 52 publications

Genome-Wide Identification and Expression Analysis of Salt-Tolerance-Associated NAC Family Genes in Cyclocarya paliurus

Genome-Wide Identification and Expression Analysis of Salt-Tolerance-Associated NAC Family Genes in Cyclocarya paliurus

Differential Gene Expression in Contrasting Common Bean Cultivars for Drought Tolerance during an Extended Dry Period

Contact Info

Product

Resources

About