Chromosome-level genome assembly of Chouioia cunea Yang, the parasitic wasp of the fall webworm

<em>Chouioia cunea</em> Yang 1989 is a parasitic wasp of many lepidopteran insects during their pupal stage, and has been successfully used to control pests such as the fall webworm<em> Hyphantria cunea</em>. The total assembly length is 171.99 Mb, containing 6 chromosomes with a GC content of 36.89% and the scaffold/contig N50 length of 31.70/26.52Mb. A total of 12,258 protein-coding genes (PCGs), 10,547 3’-UTRs, and 10,671 5’-UTRs were annotated. The results revealed that a total of 26.06 Mb repeat sequences had been identified, accounting for 15.15% of the <em>C. cunea</em> genome. 431 noncoding RNAs (ncRNAs) were predicted, including 84 micro-RNAs (miRNAs), 97 ribosomal RNAs (rRNAs), 29 small nuclear RNAs (snRNAs), 16 small nucleolar RNAs (snoRNAs), and 205 transfer RNAs (tRNAs). In <em>C. cunea</em>, 11,691 (95.40%) genes were clustered into 9,204 gene families, of which 328 gene families were expanded, 360 gene families were contracted, and 54 (37 expansions and 17 contractions) gene families experienced rapid evolution.

周氏啮小蜂（Chouioia cunea）Yang 1989是一类在蛹期寄生多种鳞翅目昆虫的寄生蜂，已被成功用于防治美国白蛾（Hyphantria cunea）等害虫。该物种的基因组总组装长度为171.99 Mb，包含6条染色体，GC含量为36.89%，支架（scaffold）与重叠群（contig）的N50长度分别为31.70 Mb和26.52 Mb。共注释得到12258个蛋白质编码基因（PCGs）、10547个3'非翻译区（3’-UTRs）以及10671个5'非翻译区（5’-UTRs）。研究共鉴定出26.06 Mb的重复序列，占周氏啮小蜂基因组的15.15%。共预测得到431个非编码RNA（ncRNAs），其中包括84个微小RNA（miRNAs）、97个核糖体RNA（rRNAs）、29个核小RNA（snRNAs）、16个核仁小RNA（snoRNAs）以及205个转运RNA（tRNAs）。在周氏啮小蜂中，共有11691个基因（占比95.40%）被聚类为9204个基因家族，其中328个基因家族发生扩张、360个基因家族发生收缩，另有54个基因家族（包含37个扩张型和17个收缩型）经历了快速演化。