Genome-Wide Identification, Phylogeny, and Expression Analysis of ARF Genes Involved in Vegetative Organs Development in Switchgrass
文献类型： 外文期刊
作者： Wang, Jianli 1 ; Wu, Zhenying 2 ; Shen, Zhongbao 3 ; Bai, Zetao 2 ; Zhong, Peng 4 ; Ma, Lichao 2 ; Pan, Duofeng 3 ; Zhang 1 ;
作者机构： 1.Harbin Normal Univ, Coll Life Sci & Technol, Harbin 150080, Heilongjiang, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Prov Key Lab Energy Genet, Key Lab Biofuels, Qingdao 266101, Peoples R China
3.Heilongjiang Acad Agr Sci, Grass & Sci Inst, Harbin 150086, Heilongjiang, Peoples R China
4.Heilongjiang Acad Agr Sci, Rural Energy Res Inst, Harbin 150086, Heilongjiang, Peoples R China
期刊名称：INTERNATIONAL JOURNAL OF GENOMICS （ 影响因子：2.326； 五年影响因子：2.557 ）
ISSN： 2314-436X
年卷期： 2018 年
页码：
收录情况： SCI
摘要： Auxin response factors (ARFs) have been reported to play vital roles during plant growth and development. In order to reveal specific functions related to vegetative organs in grasses, an in-depth study of the ARF gene family was carried out in switchgrass (Panicum virgatum L.), a warm-season C4 perennial grass that is mostly used as bioenergy and animal feedstock. A total of 47 putative ARF genes (PvARFs) were identified in the switchgrass genome (2n = 4x = 36), 42 of which were anchored to the seven pairs of chromosomes and found to be unevenly distributed. Sixteen PvARFs were predicted to be potential targets of small RNAs (microRNA160 and 167). Phylogenetically speaking, PvARFs were divided into seven distinct subgroups based on the phylogeny, exon/intron arrangement, and conserved motif distribution. Moreover, 15 pairs of PvARFs have different temporal-spatial expression profiles in vegetative organs (2nd, 3rd, and 4th internode and leaves), which implies that different PvARFs have specific functions in switchgrass growth and development. In addition, at least 14 pairs of PvARFs respond to naphthylacetic acid (NAA) treatment, which might be helpful for us to study on auxin response in switchgrass. The comprehensive analysis, described here, will facilitate the future functional analysis of ARF genes in grasses.
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