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The effect of the parental environment on offspring through non-DNA sequence-based mechanisms, such as DNA methylation, chromatin modifications, noncoding RNAs, and proteins, could only be established after the conception of "epigenetics". These effects are now broadly referred to as multigenerational epigenetic effects. Despite accumulating evidence of male gamete-mediated multigenerational epigenetic inheritance, little is known about the factors that underlie heat stress-induced multigenerational epigenetic inheritance via the male germline in . In this study, we address this gap by utilizing an established heat stress paradigm in and investigating its multigenerational effect on the sperm proteome. Our findings indicate that multigenerational heat stress during the early embryonic stage significantly influences proteins in the sperm associated with translation, chromatin organization, microtubule-based processes, and the generation of metabolites and energy. Assessment of life-history traits revealed that reproductive fitness and stress tolerance remained unaffected by multigenerational heat stress. Our study offers initial insights into the chromatin-based epigenetic mechanisms as a plausible means of transmitting heat stress memory through the male germline in . Furthermore, it sheds light on the repercussions of early embryonic heat stress on male reproductive potential. The data sets from this study are available at the ProteomeXchange Consortium under the identifier PXD037488.
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http://dx.doi.org/10.1021/acs.jproteome.4c00205 | DOI Listing |
Plant Cell Physiol
November 2024
Environmental Horticulture Department, University of Florida, PO Box 110670, Gainesville, FL 32611, USA.
NAC [NO APICAL MERISTEM (NAM), ARABIDOPSIS TRANSCRIPTION ACTIVATOR FACTOR 1/2 (ATAF1/2), and CUP-SHAPED COTYLEDON (CUC2)] transcription factors are key regulators of plant growth, development, and stress responses but were also crucial players during land plant adaptation and crop domestication. Using representative members of green algae, bryophytes, lycophytes, gymnosperms, and angiosperms, we expanded the evolutionary history of NAC transcription factors to unveil the relationships among members of this gene family. We found a massive increase in the number of NAC transcription factors from green algae to lycophytes and an even larger increase in flowering plants.
View Article and Find Full Text PDFFront Plant Sci
December 2024
Unit for Environment Science and Management, North-West University, Potchefstroom, South Africa.
Maize ( L.), a key staple crop in Sub-Saharan Africa, is particularly vulnerable to concurrent drought and heat stress, which threatens crop yield and food security. Plant growth-promoting rhizobacteria (PGPR) have shown potential as biofertilizers to enhance plant resilience under such abiotic stresses.
View Article and Find Full Text PDFPlant Physiol Biochem
December 2024
State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China. Electronic address:
Heat shock transcription factors (Hsfs) play important roles in plant developmental regulations and various abiotic stress responses. However, their evolutionary mechanism of freezing tolerance remains poorly understood. In our previous transcriptomics study based on DNA methylation sequencing, the BnaHsfA2 was found to be significantly accumulated in winter rapeseed (Brassica rapa L.
View Article and Find Full Text PDFPlant Physiol Biochem
December 2024
Beijing Key Laboratory of Grape Science and Enology and State Key Laboratory of Plant Diversity and Specilaty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; Chinese National Botany Garden, Beijing, 100093, China. Electronic address:
Transfer RNA-derived fragments (tRFs) are noncoding small RNAs derived from transfer RNAs (tRNAs) in microorganisms, animals and plants. In plants, tRFs are known to respond to environmental stimuli, including heat, oxidative stress and UV radiation; however, their specific functions in horticultural plants, such as grapevine, remain poorly understood. In this study, we used RNA-seq to identify differentially expressed genes (DEGs) in grape leaves exposed to UV-C radiation.
View Article and Find Full Text PDFJ Cell Physiol
December 2024
College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
MicroRNAs (miRNAs) are endogenous noncoding RNAs that produce a remarked effect on regulating posttranscriptional gene expression. Our previous study identified a decrease in the expression of oar-miR-411a-5p from umbilical plasma in intrauterine growth restriction (IUGR) Hu lambs subjected to maternal heat stress. In this study, we demonstrated that oar-miR-411a-5p could modulate skeletal muscle development.
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