Genome-wide identification and comprehensive analysis of the phytochrome-interacting factor (PIF) gene family in wheat

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小麦光敏色素相互作用因子(PIF)基因家族的全基因组鉴定与综合分析

关键词：

来源：

DOAJ

全文链接：

//agri.nais.net.cn/topic/downloadFile/41dd725b-c180-4101-95bd-8e4e5f699f16

来源地址：

https://doaj.org/article/763e74e6ada1404f8e3781962e6ed7f4

资源所属：

小麦遗传育种专题

类型：

学术文献

语种：

英语

原文发布日期：

2024-01-05

摘要：

Phytochrome-interacting factors (PIFs) are essential transcription factors for plant growth, development, and stress responses. Although PIF genes have been extensively studied in many plant species, they have not been thoroughly investigated in wheat. Here, we identified 18 PIF genes in cultivated hexaploid wheat (Triticum aestivum L). Phylogenetic analysis, exon-intron structures, and motif compositions revealed the presence of four distinct groups of TaPIFs. Genome-wide collinearity analysis of PIF genes revealed the evolutionary history of PIFs in wheat, Oryza sativa, and Brachypodium distachyon. Cis-regulatory element analysis suggested that TaPIF genes indicated participated in plant development and stress responses. Subcellular localization assays indicated that TaPIF2-1B and TaPIF4-5B were transcriptionally active. Both were found to be localized to the nucleus. Gene expression analyses demonstrated that TaPIFs were primarily expressed in the leaves and were induced by various biotic and abiotic stresses and phytohormone treatments. This study provides new insights into PIF-mediated stress responses and lays a strong foundation for future investigation of PIF genes in wheat.