ArticleGenome biology and evolution2023
A Chromosome-Scale Genome Assembly of a Helicoverpa zea Strain Resistant to Bacillus thuringiensis Cry1Ac Insecticidal Protein.
Article in Genome biology and evolution, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Mismatch between lab-generated and field-evolved resistance to transgenic Bt crops inProceedings of the National Academy of Sciences of the United States of America · 2024Article
- An Improved Bulk DNA Extraction Method for Detection ofInsects · 2024Article
- Anatomy of a pest control failure: introgression of cytochrome P450 337B3 alleles from invasive old-world bollworm into native corn earworm (Lepidoptera: Noctuidae).Journal of insect science (Online) · 2024Article
- High-quality genome of the zoophytophagous stink bug, Nesidiocoris tenuis, informs their food habit adaptation.G3 (Bethesda, Md.) · 2024Article
- Viral Prevalence and Genomic Xenology in the Coevolution of HzNV-2 (Nudiviridae) with HostInsects · 2023Article
- Chromosome-scale genome assembly of the pink bollworm, Pectinophora gossypiella, a global pest of cotton.G3 (Bethesda, Md.) · 2023Article
- polishCLR: A Nextflow Workflow for Polishing PacBio CLR Genome Assemblies.Genome biology and evolution · 2023Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Helicoverpa zea (Lepidoptera: Noctuidae) is an insect pest of major cultivated crops in North and South America. The species has adapted to different host plants and developed resistance to several insecticidal agents, including Bacillus thuringiensis (Bt) insecticidal proteins in transgenic cotton and maize. Helicoverpa zea populations persist year-round in tropical and subtropical regions, but seasonal migrations into temperate zones increase the geographic range of associated crop damage. To better understand the genetic basis of these physiological and ecological characteristics, we generated a high-quality chromosome-level assembly for a single H. zea male from Bt-resistant strain, HzStark_Cry1AcR. Hi-C data were used to scaffold an initial 375.2 Mb contig assembly into 30 autosomes and the Z sex chromosome (scaffold N50 = 12.8 Mb and L50 = 14). The scaffolded assembly was error-corrected with a novel pipeline, polishCLR. The mitochondrial genome was assembled through an improved pipeline and annotated. Assessment of this genome assembly indicated 98.8% of the Lepidopteran Benchmark Universal Single-Copy Ortholog set were complete (98.5% as complete single copy). Repetitive elements comprised approximately 29.5% of the assembly with the plurality (11.2%) classified as retroelements. This chromosome-scale reference assembly for H. zea, ilHelZeax1.1, will facilitate future research to evaluate and enhance sustainable crop production practices.
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