Jul 2026· Journal of Applied Genetics· 0 citations· 62 references
Medicine
TL;DR
An extensive genome-wide study of the DUF668 gene family in potato demonstrated that StDUF668s play a role in crucial biological processes, involving abiotic and biotic stress responses, and provided a valuable resource for future research aimed at improving potato stress tolerance and growth.
Expansins (EXPs) are non-enzymatic proteins that mediate cell wall loosening and play essential roles in plant growth, development, and stress responses. However, the expansin gene family in
Sorghum bicolor
remains insufficiently characterized.
In this study, we identified 68 expansin genes in
S. bicolor
(
SbEXPs
), predominantly belonging to the EXPA and EXPB subfamilies. Structural and evolutionary characterization revealed conserved domain organization, with gene family expansion likely driven by tandem and segmental duplications. Regulatory analysis revealed diverse cis-regulatory elements and predicted interactions with transcription factors, miRNAs, and protein-protein interaction partners, indicating multi-layered regulatory control. Network analysis further identified key genes, including
SbEXPA17
,
SbEXPB1
, and
SbEXPB2
, as potential central nodes. Expression profiling demonstrated distinct tissue-specific patterns, with many
SbEXP
genes highly expressed in roots and other actively growing tissues. Under drought conditions, RNA-seq data revealed differential expression of several
SbEXP
genes, with a subset consistently upregulated. These patterns were validated by qRT-PCR, confirming strong induction of genes such as
SbEXPA17
,
SbEXPB6
, and
SbEXPB8
under PEG-simulated drought stress.
This study provides a comprehensive characterization of the expansin gene family in
S. bicolor
and suggests their potential involvement in drought response through modulation of cell wall dynamics. These findings offer a foundation for future functional studies and the development of drought-resilient sorghum varieties.
Hameed Gul, Shareef Gul, Muhammad Usama et al.· BMC Plant Biology· 0 citations
A systematic analysis of the MtPLATZ gene family in M. truncatula is provided, offering a valuable reference for functional studies and genetic improvement of stress tolerance in legumes.
It is demonstrated that heterologous expression of TksPLATZ1, TksPLATZ2 and TksPLATZ7 localize to the cell nucleus and act as transcriptional activators and repressors, respectively, which enhances the tolerance of Arabidopsis to salt and osmotic stress.
Jinxian Chen, Wenhao Wu, Ming-Hua Luo et al.· Phytochemistry· 0 citations
Together, these findings provide a foundation for functional characterization and useful information for future research on the role of SlPHD family members in plant abiotic stress tolerance.
Tayeb Muhammad, Tao Yang, Haitao Yang et al.· Planta· 0 citations
This study systematically characterizes the composition, expansion and stress response patterns of the GmATG gene family, revealing functional differentiation among family members.
The results of STRING-based computer simulations predicting protein–protein interactions indicate that PpTCP3 and PpTCP5 interact with key hormone pathways and stress-related transcription factors (TFs), including auxin signaling and strigolactone signaling.
Yanfu Jing, Yang Yu, Zimin Xiao et al.· International Journal of Mol...· 0 citations
