共查询到20条相似文献,搜索用时 31 毫秒
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Characterisation of PtMYB1, an R2R3-MYB from pine xylem 总被引:2,自引:0,他引:2
Patzlaff A Newman LJ Dubos C Whetten RW Smith C McInnis S Bevan MW Sederoff RR Campbell MM 《Plant molecular biology》2003,53(4):597-608
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Towards functional characterisation of the members of the
R2R3-MYB
gene family from
Arabidopsis thaliana 总被引:7,自引:4,他引:3
Harald D. Kranz Marten Denekamp Raffaella Greco Hailing Jin Antonio Leyva Ruth C. Meissner Katia Petroni Ana Urzainqui Michael Bevan Cathie Martin Sjef Smeekens Chiara Tonelli Javier Paz-Ares Bernd Weisshaar 《The Plant journal : for cell and molecular biology》1998,16(2):263-276
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The R2R3-MYB transcription factor gene family in maize 总被引:2,自引:0,他引:2
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MYB转录因子家族是植物中数量最多的转录因子家族之一,在植物次生代谢调节、信号转导和抗逆等生物过程起重要作用。根据MYB转录因子结构域组成差异可分4个亚家族:即1R-MYB(MYB-relaed)、R2R3-MYB、3R-MYB和4R-MYB。其中,R2R3-MYB亚家族数量最多,可进一步分为22个亚组;利用生物信息学分析杨树MYB转录因子蛋白序列的保守结构域、系统发生、基因组定位、氨基酸组成和理化性质等;参照拟南芥MYB转录因子功能,预测杨树MYB转录因子功能;基于84K杨转录组测序和RT-qPCR分析,从301个杨树MYB转录因子基因中筛选出69个应答盐胁迫基因(P≤0.05)。其中,上调表达基因32个,下调表达基因37个。该研究可为进一步研究杨树MYB家族基因功能提供参考依据。 相似文献
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The R2R3-MYB gene family in Arabidopsis thaliana 总被引:25,自引:0,他引:25
MYB factors represent a family of proteins that include the conserved MYB DNA-binding domain. In contrast to animals, plants contain a MYB-protein subfamily that is characterised by the R2R3-type MYB domain. 'Classical' MYB factors, which are related to c-Myb, seem to be involved in the control of the cell cycle in animals, plants and other higher eukaryotes. Systematic screens for knockout mutations in MYB genes, followed by phenotypic analyses and the dissection of mutants with interesting phenotypes, have started to unravel the functions of the 125 R2R3-MYB genes in Arabidopsis thaliana. R2R3-type MYB genes control many aspects of plant secondary metabolism, as well as the identity and fate of plant cells. 相似文献
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c-MYB oncogene-like genes encoding three MYB repeats occur in all major plant lineages 总被引:12,自引:0,他引:12
Since the identification of the first plant MYB-like protein, the Zea mays factor C1, the number of MYB-related genes described has greatly increased. All of the more than 150 plant MYB-like proteins known so far contain either two or only one sequence-related helix-turn-helix motif in their DNA-binding domain. Animal c-MYB genes contain three such helix-turn-helix motif-encoding repeats (R1R2R3 class genes). It has therefore been concluded that R2R3-MYB genes are the plant equivalents of c-MYB and that there are significant differences in the basic structure of MYB genes of plants and animals. Here, we describe expressed R1R2R3-MYB genes from Physcomitrella patients++ and Arabidopsis thaliana, designated PpMYB3R-1 and AtMYB3R-1. The amino acid sequences of their DNA-binding domains show high similarity to those of animal MYB factors, and less similarity to R2R3-MYB proteins from plants. In addition, R1R2R3-MYB genes were identified in different plant evolutionary lineages including mosses, ferns and monocots. Our data show that a DNA-binding domain consisting of three MYB repeats existed before the divergence of the animal and plant lineages. R1R2R3-MYB genes may have a conserved function in eukaryotes, and R2R3-MYB genes may predominantly regulate plant-specific processes which evolved during plant speciation. 相似文献
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