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Evolutionary analysis of genes from WOX family and their expression profile in grape (Vitis vinifera L.) under different stresses

Meishuang Gong, Xu Lu, Congcong Zhang, Lei Ma, Haokai Yan, Guojie Nai, Ying Lai, Yuanyuan Li, Zhihui Pu, Bai-Hong Chen , Shaoying Ma, Sheng Li

Abstract

The WUSCHEL-related homeobox (WOX) transcription factor family plays critical roles in plant growth, development, and stress adaptation, but the biological functions in response to various stress of the WOX gene family have not been extensively researched in grapevine (Vitis vinifera L.). In this study, 12 VvWOXs were identified from the grapevine genome. Real-timeQuantitativepolymerase chain reaction (qRT-PCR) and microarray expression profiling found that the expression pattern of VvWOXs had an obvious tissue-specific, and the conjoint analysis of expression patterns between various tissues and treated materials indicated VvWUS1 and to Grapevine rupestris stem pitting-associated virus (GRSPaV) expression trend showing the greatest similarity ,secondly VvWOX3 and Grapevine fanleaf virus (GFLV) had a similar expression trend. The gene expression patterns of the VvWOXs in grape were different under salt stress, of which VvWOX8/9, VvWUS1, and VvWOX3 were responding more strongly to salt stress than control (CK) by 18.20, 9.50, and 9.19 folds. This study further improves a better understanding of the WOX gene family evolution and function and offers a theoretical framework and reference value for grapevine adversities breeding and free viral seedling cultivation.

FP24136  Accepted 09 July 2024

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