Identification and Expression of Genes in the CAM Plant .

species are important crassulacean acid metabolism (CAM) plants and widely cultivated in tropical areas for producing tequila spirit and fiber. The hybrid H11648 of (( × ) × A. ) is the main cultivar for fiber production in Brazil, China, and African countries. () genes have broad effect on auxin signaling-regulated plant growth and development, while only few genes have been reported in species. In this study, we identified 43, 60, 24, and 21 genes with full-length coding regions in , , . H11648, and , respectively. Although phylogenetic analysis revealed that rice contained a species-specific expansion pattern of gene, no similar phenomena were observed in species. The in silico expression indicated that genes had a distinct expression pattern in . H11648 compared with other species; and four genes were differentially expressed during CAM diel cycle in . Additionally, an expression analysis was conducted to estimate gene expression during different leaf developmental stages, abiotic and biotic stresses in . H11648. Together, we first characterized the genes of based on previously published transcriptome datasets and emphasized the potential functions of genes in leaf development and stress responses. The identification of which further expands our understanding on auxin signaling-regulated plant growth and development in species.