文献类型： 外文期刊

作者： Luo, Xiao-Cui ¹ ; Sun, Mei-Hong ¹ ; Xu, Rui-Rui ² ; Shu, Huai-Rui ¹ ; Wang, Jia-Wei ³ ; Zhang, Shi-Zhong ¹ ;

作者机构： 1.Shandong Agr Univ, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China

2.Weifang Univ, Key Lab Biol & Mol Biol Univ Shandong, Weifang 261061, Shandong, Peoples R China

3.Shandong Inst Pomol, Key Lab Fruit Biotechnol Breeding Shandong Prov, Tai An 271000, Shandong, Peoples R China

关键词： auxin response factor;gene family;Malus domestica

期刊名称：JOURNAL OF GENETICS （ 影响因子：1.166； 五年影响因子：1.212 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Auxin response factors (ARF) are transcription factors that regulate auxin responses in plants. Although the genomewide analysis of this family has been performed in some species, little is known regarding ARF genes in apple (Malus domestica). In this study, 31 putative apple ARF genes have been identified and located within the apple genome. The phylogenetic analysis revealed that MdARFs could be divided into three subfamilies (groups I, II and III). The predicted MdARFs were distributed across 15 of 17 chromosomes with different densities. In addition, the analysis of exon-intron junctions and of the intron phase inside the predicted coding region of each candidate gene has revealed high levels of conservation within and between phylogenetic groups. Expression profile analyses of MdARF genes were performed in different tissues (root, stem, leaf, flower and fruit), and all the selected genes were expressed in at least one of the tissues that were tested, which indicated that MdARFs are involved in various aspects of physiological and developmental processes of apple. To our knowledge, this report is the first to provide a genomewide analysis of the apple ARF gene family. This study provides valuable information for understanding the classification and putative functions of the ARF signal in apple.