In silico identification, characterization expression profile of WUSCHEL-Related Homeobox (WOX) gene family in two species of kiwifruit

PeerJ

article

Chen Feng¹  Shuaiyu Zou¹  Puxin Gao¹  Zupeng Wang² 

[1] Lushan Botanical Garden, Chinese Academy of Sciences;Innovative Academy of Seed Design, Chinese Academy of Sciences;Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences

关键词: Actinidia chinensis;    A. eriantha;    Whole-genome duplication;    Expression profiles;    Conserved motif;   

DOI  :  10.7717/peerj.12348

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

The WUSCHEL (WUS)-related homeobox (WOX) gene family is a class of plant-specific transcriptional factors and plays a crucial role in forming the shoot apical meristem and embryonic development, stem cell maintenance, and various other developmental processes. However, systematic identification and characterization of the kiwifruit WOX gene family have not been studied. This study identified 17 and 10 WOX genes in A. chinensis (Ac) and A. eriantha (Ae) genomes, respectively. Phylogenetic analysis classified kiwifruit WOX genes from two species into three clades. Analysis of phylogenetics, synteny patterns, and selection pressure inferred that WOX gene families in Ac and Ae had undergone different evolutionary patterns after whole-genome duplication (WGD) events, causing differences in WOX gene number and distribution. Ten conserved motifs were identified in the kiwifruit WOX genes, and motif architectures of WOXs belonging to different clades highly diverged. The cis-element analysis and expression profiles investigation indicated the functional differentiation of WOX genes and identified the potential WOXs in response to stresses. Our results provided insight into general characters, evolutionary patterns, and functional diversity of kiwifruit WOXs.

【 授权许可】

CC BY