Fosmid

Genome

Glycine

Subfamily

Amino acid

Synteny

Segmental duplication

Gene family

Gene duplication

Intron

Tandem exon duplication

Gene

Biology

Phylogenetic tree

Genetics

Glycine soja

BMC Plant Biology

Background GRAS proteins are crucial transcription factors, which are plant-specific and participate in various plant biological processes. Thanks to the rapid progress of the whole genome sequencing technologies, the GRAS gene families in different plants have been broadly explored and studied. However, comprehensive research on the soybean ( Glycine max ) GRAS gene family is relatively lagging. Results In this study, 117 Glycine max GRAS genes ( GmGRAS ) were identified. Further phylogenetic analyses showed that the GmGRAS genes could be categorized into nine gene subfamilies: DELLA, HAM, LAS, LISCL, PAT1, SCL3, SCL4/7, SCR and SHR. Gene structure analyses turned out that the GmGRAS genes lacked introns and were relatively conserved. Conserved domains and motif patterns of the GmGRAS members in the same subfamily or clade exhibited similarities. Notably, the expansion of the GmGRAS gene family was driven both by gene tandem and segmental duplication events. Whereas, segmental duplications took the major rol...

Genome-wide identification and characterization of GRAS genes in soybean (Glycine max)