ArticlePeerJ2026
MADS-box gene expression patterns correlate with drought and salt stress responses in Kentucky bluegrass (
Article in PeerJ, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Kentucky bluegrass ( Methodology: This study examined the physiological and molecular responses of three Kentucky bluegrass varieties (K.B.G., Arcadia, and Jenny) to salt and drought stress. Results: Following initial screening tests, Arcadia was more tolerant to drought and salt stress than Jenny and K.B.G. and, therefore, was selected for further analysis. 16 MADS-box genes from transcriptome analysis have been identified in Kentucky bluegrass. GO enrichment analysis revealed that these genes are primarily involved in transcriptional regulation, including RNA polymerase II-related functions and cis-regulatory region binding. To better understand the function of MADS-box genes under drought and salt stress in Arcadia, the expression levels of 16 MADS-box genes were investigated using quantitative real-time polymerase chain reaction (PCR). Furthermore, 12 of the 16 genes except Conclusion: This study identified 16 MADS-box genes in Kentucky bluegrass and revealed Tissue-specific expression patterns in Arcadia under drought and salt conditions. These candidate genes may contribute to stress tolerance, providing a foundation for further research and potential genetic improvement of Kentucky bluegrass for enhanced resistance to abiotic stresses.
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