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

doi:10.3969/j.issn.1009-7791.2026.03.001

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Subtropical Plant Science ›› 2026, Vol. 55 ›› Issue (3): 255-266.DOI: 10.3969/j.issn.1009-7791.2026.03.001

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

CHEN Chun-hui¹, ZHAO Zi-xin¹, YE Xing-zhuang^1,2, LIU Si-yu¹, WANG Jing-ru¹, WENG Hui-ying¹, FAN Hui-hua³, LIU Bao^1*

(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:2025-12-26 Accepted:2026-02-03 Online:2026-06-30 Published:2026-06-30
Contact: LIU Bao

半枫荷YABBY基因家族鉴定及表达分析

陈春晖¹，赵子欣¹，叶兴状^1,2，刘思雨¹，王静茹¹，翁慧莹¹，范辉华³，刘宝^1*

(1. 福建农林大学林学院，福建福州 350002；2. 福建省亚热带植物研究所，福建厦门 361006；3. 福建省林业科学研究院，福建福州 350012)

通讯作者: 刘宝
基金资助:
特色树种半枫荷种质创新与产业化工程（KLB17H21A）

Abstract

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

摘要： 采用生物信息学方法对半枫荷Semiliquidambar cathayensis的YABBY基因家族进行全基因组鉴定及功能分析，为其花器官发育分子机制研究提供理论依据。研究共鉴定出10个YABBY家族成员（ScYABBY1～ScYABBY10），归属于5个亚家族，分布于7条染色体上。序列与结构分析显示，所有成员均完整保留了特征性的N端C₂C₂型锌指与C端YABBY结构域，且同一亚家族成员表现出一致的外显子-内含子组织形式（含5～9个外显子）。亚细胞定位预测提示，该家族蛋白均定位于细胞核。启动子顺式作用元件分析显示，光响应元件最为丰富，此外还含有厌氧、脱落酸和赤霉素等胁迫及激素响应元件，提示该家族可能参与光照及激素信号调控。不同花期表达分析表明，各基因在雌、雄花序发育过程中表现出明显的时空表达差异。其中，ScYABBY10和ScYABBY1在雌花序中持续高表达，在雄花序中则表达水平较低，尤其ScYABBY10在雌花序发育全过程中始终维持高表达，推测其可能为调控雌花序发育的关键调控因子。综上，半枫荷YABBY基因家族在光响应及花器官发育过程中发挥重要作用，ScYABBY10或为其核心功能成员。

关键词: YABBY基因家族, 半枫荷, 生物信息学, 花器官

CLC Number:

Q943

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.

陈春晖, 赵子欣, 叶兴状, 刘思雨, 王静茹, 翁慧莹, 范辉华, 刘宝. 半枫荷YABBY基因家族鉴定及表达分析[J]. 亚热带植物科学, 2026, 55(3): 255-266.

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

半枫荷YABBY基因家族鉴定及表达分析

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