水稻，高粱，玉米，拟南芥和杨树中WOX基因家族的全基因组分析。,Journal of Integrative Plant Biology

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水稻，高粱，玉米，拟南芥和杨树中WOX基因家族的全基因组分析。
Journal of Integrative Plant Biology ( IF 9.3 ) Pub Date : 2010-10-26 , DOI: 10.1111/j.1744-7909.2010.00982.x
Xin Zhang ₁ , Jie Zong , Jianhua Liu , Jinyuan Yin , Dabing Zhang

Affiliation

WUSCHEL相关同源异型框（WOX）基因形成了一个大型基因家族，在植物中特异性表达。众所周知，它们通过确定细胞命运在调节植物组织和器官的发育中起重要作用。最近可用的全基因组序列使我们能够对植物中的WOX基因进行更全面的系统发育分析。在本研究中，我们分别从高粱（Sorghum bicolor）和玉米（Zea mays）中鉴定出11种和21种WOX。72个WOX来自稻（基因稻），高粱，玉米，拟南芥（拟南芥）和杨树（毛果杨）根据其同源域的氨基酸序列分为三个具有9个亚组的良好支持进化枝。通过同源域外的基序的观察也支持了它们的系统发育关系。我们观察到单子叶植物和双子叶植物之间9个亚组之间重复事件的变化，例如，单子叶植物A组中WOX的基因复制事件更多，而双子叶植物中双子叶植物的基因复制事件更少。此外，我们观察到水稻，高粱和拟南芥中WOX基因的保守内含子/外显子结构模式。此外，观察到WUS（Wuschel）盒和EAR（与ERF相关的两亲抑制）类似的基序在多个WOX中是保守的这五个植物中的亚组。水稻和拟南芥中WOX基因表达模式的比较分析表明，WOX基因在植物中起着保守和多种作用。这项工作提供了对WOX基因家族进化的见解，对于将来的研究很有用。

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Genome-wide analysis of WOX gene family in rice, sorghum, maize, Arabidopsis and poplar.

WUSCHEL‐related homeobox (WOX) genes form a large gene family specifically expressed in plants. They are known to play important roles in regulating the development of plant tissues and organs by determining cell fate. Recent available whole genome sequences allow us to do more comprehensive phylogenetic analysis of the WOX genes in plants. In the present study, we identified 11 and 21 WOXs from sorghum (Sorghum bicolor) and maize (Zea mays), respectively. The 72 WOX genes from rice (Oryza sativa), sorghum, maize, Arabidopsis (Arabidopsis thaliana) and poplar (Populus trichocarpa) were grouped into three well supported clades with nine subgroups according to the amino acid sequences of their homodomains. Their phylogenetic relationship was also supported by the observation of the motifs outside the homodomain. We observed the variation of duplication events among the nine sub‐groups between monocots and eudicots, for instance, more gene duplication events of WOXs within subgroup A for monocots, while, less for dicots in this subgroup. Furthermore, we observed the conserved intron/exon structural patterns of WOX genes in rice, sorghum and Arabidopsis. In addition, WUS (Wuschel)‐box and EAR (the ERF‐associated amphiphilic repression)‐like motif were observed to be conserved among several WOX subgroups in these five plants. Comparative analysis of expression patterns of WOX genes in rice and Arabidopsis suggest that the WOX genes play conserved and various roles in plants. This work provides insights into the evolution of the WOX gene family and is useful for future research.

更新日期：2010-10-26

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