VQ protein, contain a conserved and short FxxxVQxLTG amino acid sequence motif. Some VQ proteins play important roles in development process and abiotic/biotic stress in plants. However, there has not been a systematic study of the VQ family in plants. The results revealed that Group I genes are conserved in plant development in angiosperms; Group IV and Group X in eudicots and Group I, Group VI and Group VII in monocots are involved in drought response; Group I and Group IV are the most important groups and conservational in response to salt stress in eudicots but not in monocots; VQ genes in Group II and Group IV which responded to cold stress were overlapped in angiosperms; Group IV, Group V, Group VI and Group IX in eudicots and Group VI in monocots play key roles in response to ABA treatment; Group IV in eudicots while Group V and Group VI are irreplaceable in response to biotic stress in monocots. We propose that this study provides solid foundations for the investigation of the functions and evolution of VQ genes in angiosperms.

中文翻译：

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VQ家族的全基因组分类以及进化和功能分析

VQ蛋白，包含一个保守且短的FxxxVQxLTG氨基酸序列基序。一些VQ蛋白在植物的发育过程和非生物/生物胁迫中起重要作用。但是，尚未对植物中的VQ家族进行系统的研究。结果表明，I类基因在被子植物的发育中是保守的。双子叶植物中的IV组和X族以及单子叶植物中的I，VI和VII族参与干旱响应。第一组和第四组是最重要的组，是对双子叶植物而不是单子叶植物响应盐胁迫的保护基。II组和IV组中对冷胁迫有响应的VQ基因在被子植物中重叠；双子叶植物中的IV，V，VI，IX和IX组以及单子叶植物中的VI组在ABA处理中起关键作用。双子叶植物中的IV组是不可替代的，而V和VI组是对单子叶植物中生物胁迫的响应。我们建议这项研究为被子植物中VQ基因的功能和进化研究提供了坚实的基础。