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Evolution of the SPX gene family and its role in the response mechanism to low phosphorus stress in self-rooted apple stock

التفاصيل البيبلوغرافية
العنوان: Evolution of the SPX gene family and its role in the response mechanism to low phosphorus stress in self-rooted apple stock
المؤلفون: Zenghui Wang, Xiaowen Zhang, Xuemei Yang, Haixia Tang, Lijuan Feng, Yanlei Yin, Jialin Li
المصدر: BMC Genomics, Vol 25, Iss 1, Pp 1-13 (2024)
بيانات النشر: BMC, 2024.
سنة النشر: 2024
المجموعة: LCC:Biotechnology
LCC:Genetics
مصطلحات موضوعية: Self-rooted apple stock, Expression patterns, SPX family, Phosphate starvation, Regulatory networks, Biotechnology, TP248.13-248.65, Genetics, QH426-470
الوصف: Abstract Background Phosphorus plays a key role in plant adaptation to adversity and plays a positive role in the yield and quality formation of apples. Genes of the SPX domain-containing family are widely involved in the regulation of phosphorus signalling networks. However, the mechanisms controlling phosphorus deficiency are not completely understood in self-rooted apple stock. Results In this study, 26 members of the apple SPX gene family were identified by genome-wide analysis, and further divided into four subfamilies (SPX, SPX-MFS, SPX-EXS, and SPX-RING) based on their structural features. The chromosome distribution and gene duplications of MdSPXs were also examined. The promoter regions of MdSPXs were enriched for multiple biotic/abiotic stresses, hormone responses and typical P1BS-related elements. Analysis of the expression levels of 26 MdSPXs showed that some members were remarkably induced when subjected to low phosphate (Pi) stress, and in particular MdSPX2, MdSPX3, and MdPHO1.5 exhibited an intense response to low Pi stress. MdSPX2 and MdSPX3 showed significantly divergent expression levels in low Pi sensitive and insensitive apple species. Protein interaction networks were predicted for 26 MdSPX proteins. The interaction of MdPHR1 with MdSPX2, MdSPX3, MdSPX4, and MdSPX6 was demonstrated by yeast two-hybrid assay, suggesting that these proteins might be involved in the Pi-signaling pathway by interacting with MdPHR1. Conclusion This research improved the understanding of the apple SPX gene family and contribute to future biological studies of MdSPX genes in self-rooted apple stock.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1471-2164
Relation: https://doaj.org/toc/1471-2164
DOI: 10.1186/s12864-024-10402-2
URL الوصول: https://doaj.org/article/b845bd4d3b68430c9214deb8c1e58249
رقم الأكسشن: edsdoj.b845bd4d3b68430c9214deb8c1e58249
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14712164
DOI:10.1186/s12864-024-10402-2