Comparative Genomic Analysis of the GRF Genes in Chinese Pear ( Pyrus bretschneideri Rehd ), Poplar ( Populous ), Grape ( Vitis vinifera ), Arabidopsis and Rice ( Oryza sativa )

Growth-regulating factors (GRFs) are plant-specific transcription factors that have important functions in regulating plant growth and development. Previous studies on GRF family members focused either on a single or a small set of genes. Here, a comparative genomic analysis of the gene family was p...

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Bibliographic Details
Published in:Frontiers in plant science 2016-11, Vol.7, p.1750-1750
Main Authors: Cao, Yunpeng, Han, Yahui, Jin, Qing, Lin, Yi, Cai, Yongping
Format: Article
Language:English
Subjects:
Gene Duplication
gene structure
GRF
Microsynteny
molecular evolution
Plant Science
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Summary:Growth-regulating factors (GRFs) are plant-specific transcription factors that have important functions in regulating plant growth and development. Previous studies on GRF family members focused either on a single or a small set of genes. Here, a comparative genomic analysis of the gene family was performed in poplar (a model tree species), (a model plant for annual herbaceous dicots), grape (one model plant for perennial dicots), rice (a model plant for monocots) and Chinese pear (one of the economical fruit crops). In total, 58 genes were identified, 12 genes in rice ( ), 8 genes in grape ( ), 9 genes in , 19 genes in poplar ( ) and 10 genes in Chinese pear ( ). The genes were divided into five subfamilies based on the phylogenetic analysis, which was supported by their structural analysis. Furthermore, microsynteny analysis indicated that highly conserved regions of microsynteny were identified in all of the five species tested. And Ka/Ks analysis revealed that purifying selection plays an important role in the maintenance of genes. Our results provide basic information on genes in five plant species and lay the foundation for future research on the functions of these genes.
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2016.01750