ArticleG3 (Bethesda, Md.)2024
Genome report: Genome sequence of tuliptree scale, Toumeyella liriodendri (Gmelin), an ornamental pest insect.
Article in G3 (Bethesda, Md.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Genome report: genome sequence of the hibiscus mealybug, Nipaecoccus viridis (Newstead), an invasive pest of citrus.G3 (Bethesda, Md.) · 2025Article
- Contrasting Evolutionary Trajectories Under Paternal Genome Elimination in Male and Female Citrus Mealybugs.Molecular ecology · 2025Article
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5 authors.
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Abstract
Scale insects are of interest both to basic researchers for their unique reproductive biology and to applied researchers for their pest status. In spite of this interest, there remain few genomic resources for this group of insects. To begin addressing this lack of data, we present the genome sequence of tuliptree scale, Toumeyella liriodendri (Gmelin) (Hemiptera: Coccomorpha: Coccidae). The genome assembly spans 536Mb, with over 96% of sequence assembled into one of 17 chromosomal scaffolds. We characterize roughly 66% of this sequence as repetitive and annotate 16,508 protein coding genes. Then we use the reference genome to explore the phylogeny of soft scales (Coccidae) and evolution of karyotype within the family. We find that T. liriodendri is an early-diverging soft scale, less closely related to most sequenced soft scales than a species of the family Aclerdidae is. This molecular result corroborates a previous, morphology-based phylogenetic placement of Aclerdidae within Coccidae. In terms of genome structure, T. liriodendri has nearly twice as many chromosomes as the only other soft scale assembled to the chromosome level, Ericerus pela (Chavannes). In comparing the two, we find that chromosome number evolution can largely be explained by simple fissions rather than more complex rearrangements. These genomic natural history observations lay a foundation for further exploration of this unique group of insects.
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