Open AccessHigh-Quality Genome Sequence Resource of a Rice False Smut Fungus Ustilaginoidea virens Isolate, UV-FJ-1
Author(s) -
Jiandong Bao,
Rong Wang,
Shilei Gao,
Zhe Wang,
Yu Fang,
Wu Lv,
Mo Wang
Publication year - 2021
Publication title -
phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.264
H-Index - 131
eISSN - 1943-7684
pISSN - 0031-949X
DOI - 10.1094/phyto-01-21-0007-a
Subject(s) - biology , genome , sequence assembly , smut , gene , genetics , genome project , whole genome sequencing , gene prediction , reference genome , computational biology , botany , transcriptome , gene expression
Ustilaginoidea virens is the fungal pathogen causing rice false smut, resulting in not only yield lost but also grain pollution with toxic mycotoxins. Here we deployed PacBio Sequel II HIFI-read sequencing technology to generate a near-complete genome assembly for the U. virens isolate UV-FJ-1 (38.48 Mb), which was isolated from Fujian province, China. The genome assembly contains 116 contigs with N 50 of 0.65 Mb and a maximum length of 2.10 Mb, and the genome completeness is ≥98% assessed by benchmarking universal single-copy orthologs (BUSCOs) and the mapping rate of Illumina short reads. Excluding 35.78% repeat sequences, we identified a total of 7,164 protein-coding genes, of which 5,818 were functionally annotated and 223 encode putative effector proteins. Moreover, 21 secondary metabolite biosynthesis gene clusters were found in UV-FJ-1 genome. Taken together, this high-quality genome assembly and gene annotation resource will provide a better insight for characterizing the biological and pathogenic mechanisms of U. virens.