摘要
利用生物信息学的方法,对有代表性的23个调控植物木质素生物合成的转录因子进行系统发育树和保守基序分析,同时结合已报道的转录因子功能,构建维管植物次生细胞壁生物合成的调控遗传网络。结果表明:系统发育树中MYB转录因子、NAC转录因子和NtLIM转录因子各聚为一类。保守基序中除PttMYB21a外,MYB转录因子都具有2个不相同的MYB DNA结合域SANT基序;NAC转录因子都具有共同的保守基序NAM。调控遗传网络中11个转录调控模块通过调控自身/下游转录因子/包含AC元件的木质素单体途径基因/不包含AC元件的木质素单体途径基因对次生细胞壁生物合成产生影响。
Using bioinformatics methods,some representative 23 control plant lignin biosynthesis transcription factors system development tree and conservative base sequence analysis were made,at the same time with reported transcription factor function,the vascular plant secondary cell wall biosynthesis control genetic network was constructed.Bioinformatics analysis showed that transcription factors MYB,NAC and NtLIM in phylogenetic tree gathered for a class separately.All MYB(except for PttMYB21)had 2 different MYB-DNA binding domain SANT motifs in conserved motifs.NAC had common conserved motifs NAM.11 modules in transcriptional regulation genetic network,which acted through regulate themselves/downstream transcription factors/monolignol pathway genes with AC elements/monolignol pathway genes without AC elements,implicated in secondary cell wall biosynthesis.
出处
《福建林业科技》
北大核心
2013年第1期1-5,21,共6页
Journal of Fujian Forestry Science and Technology
基金
四川省"十二五"重点攻关资助项目(2011YZGG-10)
四川省应用基础研究基金资助项目(05JY029-101)
四川主要丛生竹定向培育技术项目(10zx1102)资助
关键词
木质素
次生细胞壁
生物合成
转录因子
转录调控
lignin
secondary cell wall
biosynthesis
transcriptional factor
transcriptional regulation
