Analysis of the oligopeptide transporter gene family in Ganoderma lucidum: structure, phylogeny, and expression patterns.
Oligopeptide transporters (OPTs) are believed to transport broad ranges of substrates across the plasma membrane from the extracellular environment into the cell and are thought to contribute to various biological processes. In the present study, 13 putative OPTs (Gl-OPT1 to Gl-OPT13) were identified through extensive search of Ganoderma lucidum genome database. Phylogenetic analysis with OPTs from other fungi and plants indicates that these genes can be further divided into five groups. Motif compositions of OPT members are highly conserved in each group, indicative of functional conservation. Expression profile analysis of the 13 Gl-OPT genes indicated that, with the exception of Gl-OPT7-Gl-OPT9, for which no transcripts were detected, all paralogues were differentially expressed, suggesting their potential involvement in stress response and functional development of fungi. Overall, the analyses in this study provide a starting point for elucidating the functions of OPT in G. lucidum, and for understanding the complexities of metabolic regulation.
a College of Resource, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Quanju
Q
Xiang
a College of Resource, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Keyu
K
Shen
a College of Resource, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Xiumei
X
Yu
a College of Resource, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Ke
K
Zhao
a College of Resource, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Yunfu
Y
Gu
a College of Resource, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Xiaoping
X
Zhang
b Rice Research Institute of Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Xiaoqiong
X
Chen
a College of Resource, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
Qiang
Q
Chen
D000595:Amino Acid Sequence; D017124:Conserved Sequence; D005656:Fungal Proteins / Q000235:genetics; D015870:Gene Expression; D018507:Gene Expression Regulation, Developmental; D015966:Gene Expression Regulation, Fungal; D026901:Membrane Transport Proteins / Q000235:genetics*; D005810:Multigene Family; D010802:Phylogeny; D020940:Reishi / Q000235:genetics / Q000378:metabolism*; D013312:Stress, Physiological
D005656:Fungal Proteins; D026901:Membrane Transport Proteins
expression patterns; gene structure; heavy metal stress; motifs d’expression; stress aux métaux lourds; structure génique