ArticleGenome biology and evolution2022
Chromosome-level Assembly, Dosage Compensation and Sex-biased Gene Expression in the Small Brown Planthopper, Laodelphax striatellus.
Article in Genome biology and evolution, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 22 citations in OpenAlex.
- Mixed Evidence that Dosage Sensitive Genes Drive Global Dosage Compensation in Flour Beetles.Genome biology and evolution · 2026Article
- Identification of sex chromosome, sex-biased gene expression and dosage compensation in the pygmy mole cricket Xya riparia (Orthoptera: Tridactyloidea).BMC genomics · 2026Article
- Wolbachia enhances ovarian development in the rice planthopper Laodelphax striatellus through elevated energy production.Nature communications · 2025Article
- Evolutionary Analysis of Sex-Biased Gene Suggests Functional Conservation of Lifespan-Related Genes in Insecta.Biology · 2025Article
- An Extension of Muller's Sheltering Hypothesis for the Evolution of Sex Chromosome Gene Content.Molecular biology and evolution · 2025Article
- Dynamics of X chromosome hyper-expression and inactivation in male tissues during stick insect development.PLoS genetics · 2025Article
- Sex Chromosome Dosage Compensation in Insects.Insects · 2025Review
- Neo-Sex Chromosome Evolution in Treehoppers Despite Long-Term X Chromosome Conservation.Genome biology and evolution · 2024Article
- Chromosome-level genome assembly from a single planthopper Nilaparvata muiri (Hemiptera: Delphacidae).Scientific data · 2024Article
- The grasshopper genome reveals long-term gene content conservation of the X Chromosome and temporal variation in X Chromosome evolution.Genome research · 2024Article
- Incomplete transcriptional dosage compensation of chicken and platypus sex chromosomes is balanced by post-transcriptional compensation.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- A pipeline contributes to efficient identification of salivary proteins in short-headed planthopper, Epeurysa nawaii.Scientific reports · 2024Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In insects, sex chromosome differentiation often results in unequal gene dosages between sexes. Dosage compensation mechanisms evolve to balance gene expression, but the degree and mechanism of regulation often vary by insect species. In hemipteran species, the small brown planthopper (SBPH), Laodelphax striatellus, is an injurious crop pest, with a sex chromosome type XX in females and XO in males. This species offers the opportunity to study dosage compensation and sex-biased gene expression. In this study, we generated a chromosome-level genome of SBPH using Oxford Nanopore Technologies and high-throughput chromatin conformation capture (Hi-C) technology. We also sequenced RNA-seq data from 16 tissue samples to annotate the genome and analyze gene dosage compensation. We finally obtained a 510.2 megabases (Mb) genome with 99.12% of the scaffolds anchored on 15 chromosomes (14 autosomes and 1 X chromosome) and annotated 16,160 protein-coding genes based on full-length cDNA sequencing data. Furthermore, we found complete dosage compensation in all L. striatellus somatic tissues, but lack of dosage compensation in gonad tissue testis. We also found that female-biased genes were significantly enriched on the X chromosome in all tissues, whereas male-biased genes in gonad tissues were enriched on autosomes. This study not only provides a high-quality genome assembly but also lays a foundation for a better understanding of the sexual regulatory network in hemipteran insects.
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