ArticleHeredity2016
The fate of W chromosomes in hybrids between wild silkmoths, Samia cynthia ssp.: no role in sex determination and reproduction.
Article in Heredity, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Molecular mechanisms of sex determination in Lepidoptera: current status and perspectives.Insect science · 2026Review
- A W chromosome-derived feminizing piRNA in pyralid moths demonstrates convergent evolution for primary sex determination signals in Lepidoptera.BMC biology · 2025Article
- Polyommatine Blue Butterflies Reveal Unexpected Integrity of the W Sex Chromosome Amid Extensive Chromosomal Fragmentation Linked to Telomere Restoration.Genome biology and evolution · 2025Article
- Chromosome-Level Genome Assembly ofInsects · 2023Article
- Dichotomous sperm in Lepidopteran insects: a biorational target for pest management.Frontiers in insect science · 2023Review
- Silencing RNAs expressed from W-linkedProceedings of the National Academy of Sciences of the United States of America · 2022Article
- Article
- Evolution of multiple sex-chromosomes associated with dynamic genome reshuffling in Leptidea wood-white butterflies.Heredity · 2020Article
- Identification and characterization of a Masculinizer homologue in the diamondback moth, Plutella xylostella.Insect molecular biology · 2020Article
- Article
- Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera.Insects · 2019Review
- Insights into the Structure of the Spruce Budworm (G3 (Bethesda, Md.) · 2018Article
- Sex Chromosomes of the Iconic MothGenes · 2018Article
- Shared and Species-Specific Patterns of Nascent Y Chromosome Evolution in Two Guppy Species.Genes · 2018Article
- The deep conservation of the Lepidoptera Z chromosome suggests a non-canonical origin of the W.Nature communications · 2017Article
- FeminizingEvolution letters · 2017Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Moths and butterflies (Lepidoptera) have sex chromosome systems with female heterogamety (WZ/ZZ or derived variants). The maternally inherited W chromosome is known to determine female sex in the silkworm, Bombyx mori. However, little is known about the role of W chromosome in other lepidopteran species. Here we describe two forms of the W chromosome, W and neo-W, that are transmitted to both sexes in offspring of hybrids from reciprocal crosses between subspecies of wild silkmoths, Samia cynthia. We performed crosses between S. c. pryeri (2n=28, WZ/ZZ) and S. c. walkeri (2n=26, neo-Wneo-Z/neo-Zneo-Z) and examined fitness and sex chromosome constitution in their hybrids. The F1 hybrids of both reciprocal crosses had reduced fertility. Fluorescence in situ hybridization revealed not only the expected sex chromosome constitutions in the backcross and F2 hybrids of both sexes but also females without the W (or neo-W) chromosome and males carrying the W (or neo-W) chromosome. Furthermore, crosses between the F2 hybrids revealed no association between the presence or absence of W (or neo-W) chromosome and variations in the hatchability of their eggs. Our results clearly suggest that the W (or neo-W) chromosome of S. cynthia ssp. plays no role in sex determination and reproduction, and thus does not contribute to the formation of reproductive barriers between different subspecies.
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