title: Analysis of phytoplasma-responsive sRNAs provide insight into the pathogenic mechanisms of mulberry yellow dwarf disease.
abstract: The yellow dwarf disease associated with phytoplasmas is one of the most devastating diseases of mulberry and the pathogenesis involved in the disease is poorly understood. To analyze the molecular mechanisms mediating gene expression in mulberry-phytoplasma interaction, the comprehensive sRNA changes of mulberry leaf in response to phytoplasma-infection were examined. A total of 164 conserved miRNAs and 23 novel miRNAs were identified, and 62 conserved miRNAs and 13 novel miRNAs were found to be involved in the response to phytoplasma-infection. Meanwhile, target genes of the responsive miRNAs were identified by sequencing of the degradome library. In addition, the endogenous siRNAs were sequenced, and their expression profiles were characterized. Interestingly, we found that phytoplasma infection induced the accumulation of mul-miR393-5p which was resulted from the increased transcription of MulMIR393A, and mul-miR393-5p most likely initiate the biogenesis of siRNAs from TIR1 transcript. Based on the results, we can conclude that phytoplasma-responsive sRNAs modulate multiple hormone pathways and play crucial roles in the regulation of development and metabolism. These responsive sRNAs may work cooperatively in the response to phytoplasma-infection and be responsible for some symptoms in the infected plants.
authors.affiliation: State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Ying-Ping
authors.initials: YP
authors.lastname: Gai
authors.affiliation: State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Yi-Qun
authors.initials: YQ
authors.lastname: Li
authors.affiliation: College of Forestry, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Fang-Yue
authors.initials: FY
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Chuan-Zhong
authors.initials: CZ
authors.lastname: Yuan
authors.affiliation: College of Forestry, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Yao-Yao
authors.initials: YY
authors.lastname: Mo
authors.affiliation: State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Hua-Liang
authors.initials: HL
authors.lastname: Zhang
authors.affiliation: College of Forestry, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Hong
authors.initials: H
authors.lastname: Wang
authors.affiliation: 1] State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China [2] College of Forestry, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
authors.forename: Xian-Ling
authors.initials: XL
authors.lastname: Ji
mesh_terms: D035683:MicroRNAs / Q000235:genetics*; D031625:Morus / Q000235:genetics* / Q000382:microbiology*; D045582:Phytoplasma / Q000235:genetics / Q000472:pathogenicity* / Q000502:physiology*; D010935:Plant Diseases / Q000235:genetics / Q000382:microbiology*; D018515:Plant Leaves / Q000235:genetics / Q000382:microbiology
chemical_list: D035683:MicroRNAs