Subtropical Plant Science >

2026 , Vol. 55 >Issue 3: 255 - 266

DOI: https://doi.org/10.3969/j.issn.1009-7791.2026.03.001

Research articles

Identification and Expression Analysis of the YABBY Gene Family in Semiliquidambar cathayensis

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  • (1. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian China; 2. Fujian Institute of Subtropical Botany, Xiamen 361006, Fujian China; 3. Fujian Academy of Forestry Sciences, Fuzhou 350012, Fujian China)

Received date: 2025-12-26

  Accepted date: 2026-02-03

  Online published: 2026-06-30

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Abstract

In this study, a genome-wide identification and functional analysis of the YABBY gene family was conducted in Semiliquidambar cathayensis using bioinformatics approaches, aiming to provide theoretical support for understanding the molecular mechanisms underlying floral organ development. A total of 10 YABBY family members (ScYABBY1～ScYABBY10) were identified and classified into five subfamilies, distributed across seven chromosomes. Sequence and structural analyses revealed that all members possess the characteristic N-terminal C2C2zinc-finger and C-terminal YABBY domains. Furthermore, members within the same subfamily exhibited consistent exon-intron organizations, comprising 5 to 9 exons. Subcellular localization prediction suggested that all ScYABBY proteins were localized to the nucleus. Promoter cis-element analysis revealed a high abundance of light-responsive elements, along with elements responsive to anaerobic stress, abscisic acid, and gibberellins, suggesting potential involvement in light signaling and hormone response pathways. Expression profiling at different flowering stages showed distinct spatiotemporal expression patterns among the gene family members in male and female inflorescences. Notably, ScYABBY10 and ScYABBY1 exhibited sustained high expression in female inflorescences but were low or undetectable in male inflorescences. ScYABBY10 maintained a consistently high expression level throughout female inflorescence development, indicating its potential role as a key regulator of female floral organ development. In conclusion, the YABBY gene family in S. cathayensis plays important roles in light response and floral organ development, with ScYABBY10 likely serving as a core functional regulator.

Key words： YABBY gene family; Semiliquidambar cathayensis; bioinformatics; floral organ

Cite this article

CHEN Chun-hui, ZHAO Zi-xin, YE Xing-zhuang, LIU Si-yu, WANG Jing-ru, WENG Hui-ying, FAN Hui-hua, LIU Bao . Identification and Expression Analysis of the YABBY Gene Family in Semiliquidambar cathayensis[J]. Subtropical Plant Science, 2026 , 55(3) : 255 -266 . DOI: 10.3969/j.issn.1009-7791.2026.03.001

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