摘要
Aux/IAA基因家族在生长素诱导的早期做出响应,是生长素早期应答的3类基因家族之一。现主要从基因组水平研究白菜Aux/IAA基因的分布及特征。结果表明:从BRAD共检测到59条白菜Aux/IAA基因,不均等分布在白菜的全部10条染色体上。通过多重比对和基序探测结果显示,40条白菜Aux/IAA基因具有4个保守基序,其它基因的保守基序则有不同程度的分化。系统进化分析表明,Aux/IAA基因家族可分为7个亚家族。通过表达模式预测发现,白菜Aux/IAA基因家族表达模式也有较大差异。
Aux/IAA gene family is one of three gene families which are responsive primarily to auxin induction. The isolation and characterization of Brassica rapa Aux/IAA genes in whole-genome scale were presented. The results showed that a total of 59 Aux/IAA genes of Brassica rapa were identified from BRAD. Aux- IAA genes were unequally distributed in all the Brassica rapa chromosomes. Multiple alignment and motif display results revealed 40 Aux/IAA genes of Brassica rapa share all the four conserved domains,and others had evoluted differently. Phylogenetic analysis indicated Aux/IAA family could be divided into seven subfamilies. Expression patterns prediction showed that Aux/IAA genest expression patterns were much different. The results will be helpful to the auxin signal transduction cascade research.
出处
《北方园艺》
CAS
北大核心
2012年第14期109-113,共5页
Northern Horticulture
基金
国家自然科学基金资助项目(31171588)
重庆市高等教育教学改革研究资助项目(103116)
