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Updated: May 16, 2025

High-throughput Physical Mapping of Chromosomes using Automated in situ Hybridization
Published on: June 28, 2012
Chromosome-level genome assembly of the Adonis ladybird Hippodamia variegata
Hong-Ling Liu1, Yan-Ping Yong2, Xing-Long Wu2
1Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China. liuhongling@ippsaas.org.cn.
Abstract:
The Adonis ladybird (Hippodamia variegata), an important predator in agricultural ecosystems, plays a crucial role in biological control and is a significant model for evolutionary and genomic studies within Coccinellidae. Despite its ecological importance, the lack of a reference genome for H. variegata has limited in-depth investigations into its biology and potential as a biocontrol agent. Here, we present a high-quality, chromosome-level genome assembly of H. variegata. The final assembly spans 493.01 Mb, with a scaffold N50 of 28.19 Mb and a GC content of 36.41%. Hi-C sequencing data enabled the anchoring of 343.20 Mb to 10 chromosomes. Repetitive elements accounted for 258.56 Mb (52.44%) of the genome, with long interspersed nuclear elements (LINEs) being the most prevalent. We identified 37,348 protein-coding genes, of which 78.55% were functionally annotated in public protein databases. This high-quality genome assembly will serve as a valuable resource for furthering our understanding of Adonis ladybird's evolutionary biology, enhancing its utility in pest management, and supporting future research on ladybird genomics.
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