title: Identification of the mulberry genes involved in ethylene biosynthesis and signaling pathways and the expression of MaERF-B2-1 and MaERF-B2-2 in the response to flooding stress.
abstract: The phytohormone ethylene is essential to plant growth and development. It plays crucial roles in responses to biotic and abiotic stress. The mulberry tree is an important crop plant in countries in which people rear silkworms for silk production. The availability of the mulberry genome has made it possible to identify mulberry genes involved in ethylene biosynthesis and signal pathways. A total of 145 mulberry genes were identified by both homology-based and hidden Markov model (HMM) search, including 29 genes associated with ethylene biosynthesis and 116 genes in the AP2/ERF family. Studies on gene structure have provided a genetic basis for understanding the functions of these genes. The differences in gene expression were also observed in different tissues. The expression of two mulberry genes in the AP2/ERF family, MaERF-B2-1 and MaERF-B2-2, was found to be associated with the response to flooding stress.
authors.affiliation: State Key Laboratory of Silkworm Genome Biology, Southwest University, Beibei, Chongqing, 400715, China.
authors.forename: Jingzhe
authors.initials: J
authors.lastname: Shang
authors.forename: Penghua
authors.initials: P
authors.lastname: Song
authors.forename: Bi
authors.initials: B
authors.lastname: Ma
authors.forename: Xiwu
authors.initials: X
authors.lastname: Qi
authors.forename: Qiwei
authors.initials: Q
authors.lastname: Zeng
authors.forename: Zhonghuai
authors.initials: Z
authors.lastname: Xiang
authors.forename: Ningjia
authors.initials: N
authors.lastname: He
mesh_terms: D020816:Amino Acid Motifs; D000595:Amino Acid Sequence; D016000:Cluster Analysis; D005030:Ethylenes / Q000096:biosynthesis*; D005091:Exons / Q000235:genetics; D055868:Floods; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D007438:Introns / Q000235:genetics; D008969:Molecular Sequence Data; D031625:Morus / Q000235:genetics* / Q000502:physiology; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D011401:Promoter Regions, Genetic / Q000235:genetics; D016415:Sequence Alignment; D015398:Signal Transduction / Q000235:genetics*; D013312:Stress, Physiological / Q000235:genetics*; D014157:Transcription Factors / Q000737:chemistry / Q000378:metabolism
chemical_list: D005030:Ethylenes; D010940:Plant Proteins; D014157:Transcription Factors; C036216:ethylene