Dryocosmus kuriphilus
isolate
Dku-2
common name
Oriental chestnut gall wasp
age
adult
collection_date
2019-05
geo_loc_name
China: Changsha
sex
female
tissue
whole body
note
Dryocosmus kuriphilus, commonly known as the chestnut gall wasp, belonging to the family Cynipidae and native to China. It is a highly invasive insect species causing serious damage to chestnut trees and rapidly spread to various continents, including Europe, North America, and Oceania. The D. kuriphilus has become one of the important pests of chestnut plants in the world and is listed as the quarantine object by the European and Mediterranean Plant Protection Organization (EPPO). In this study, we used PacBio long reads, Illumina short reads, and Hi-C sequencing data to construct a chromosome level of D. kuriphilus genome. The assembled genome includes 14,729 contigs with a total length of 2.28 Gb, a contig N50 of 0.8 Mb. With Hi-C technology, 2.17 Gb (95.02%) of contigs was anchored and oriented into the 10 pseudochromosomes with the N50 of 198.8 Mb and the N90 of 158.8 Mb. In total, 21,584 protein-coding genes were predicted in the assembled D. kuriphilus genome as the reference gene set. A total of 1.82 Gb repeats (occupying 79.7 % of the genome), including 1.42 Gb of transposable elements and 0.40 Gb of tandem repeats, were identified in D. kuriphilus genome. In the evaluation of completeness, the BUSCO analysis determined a level of 94.6% completeness for the assembled genome sequences based on insecta database (OrthoDB version 9). The high-quality genome assembly of D. kuriphilus will not only provide a valuable reference for the study of its evolutionary history and genetic structure, but also facilitate the research of host-pest interactions and invasiveness. Moreover, this genome assembly will promote in the development of effective management strategies to mitigate the economic and ecological impacts of this invasive pest on chestnut trees and ecosystems.
BioSampleModel
Model organism or animal