Genome-Wide Analysis of the Dof Transcription Factor Gene Family Reveals Soybean-Specific Duplicable and Functional Characteristics

doi:10.1371/journal.pone.0076809

	Genome-Wide Analysis of the Dof Transcription Factor Gene Family Reveals Soybean-Specific Duplicable and Functional Characteristics
	Guo, Yong; Qiu, Li-Juan
刊名	PLOS ONE
	2013
卷号	8 期号:9 页码:-
ISSN号	1932-6203
DOI	10.1371/journal.pone.0076809
通讯作者	Guo, Yong
英文摘要	The Dof domain protein family is a classic plant-specific zinc-finger transcription factor family involved in a variety of biological processes. There is great diversity in the number of Dof genes in different plants. However, there are only very limited reports on the characterization of Dof transcription factors in soybean (Glycine max). In the present study, 78 putative Dof genes were identified from the whole-genome sequence of soybean. The predicted GmDof genes were non-randomly distributed within and across 19 out of 20 chromosomes and 97.4% (38 pairs) were preferentially retained duplicate paralogous genes located in duplicated regions of the genome. Soybean-specific segmental duplications contributed significantly to the expansion of the soybean Dof gene family. These Dof proteins were phylogenetically clustered into nine distinct subgroups among which the gene structure and motif compositions were considerably conserved. Comparative phylogenetic analysis of these Dof proteins revealed four major groups, similar to those reported for Arabidopsis and rice. Most of the GmDofs showed specific expression patterns based on RNA-seq data analyses. The expression patterns of some duplicate genes were partially redundant while others showed functional diversity, suggesting the occurrence of sub-functionalization during subsequent evolution. Comprehensive expression profile analysis also provided insights into the soybean-specific functional divergence among members of the Dof gene family. Cis-regulatory element analysis of these GmDof genes suggested diverse functions associated with different processes. Taken together, our results provide useful information for the functional characterization of soybean Dof genes by combining phylogenetic analysis with global gene-expression profiling.
学科主题	Multidisciplinary Sciences ; MULTIDISCIPLINARY SCIENCES
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000325423500178
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5001]
专题	作物科学研究所_分子生物学系
作者单位	Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Guo, Yong,Qiu, Li-Juan. Genome-Wide Analysis of the Dof Transcription Factor Gene Family Reveals Soybean-Specific Duplicable and Functional Characteristics[J]. PLOS ONE,2013,8(9):-.
APA	Guo, Yong,&Qiu, Li-Juan.(2013).Genome-Wide Analysis of the Dof Transcription Factor Gene Family Reveals Soybean-Specific Duplicable and Functional Characteristics.PLOS ONE,8(9),-.
MLA	Guo, Yong,et al."Genome-Wide Analysis of the Dof Transcription Factor Gene Family Reveals Soybean-Specific Duplicable and Functional Characteristics".PLOS ONE 8.9(2013):-.