ArticleComparative cytogenetics2015
The blue butterfly Polyommatus (Plebicula) atlanticus (Lepidoptera, Lycaenidae) holds the record of the highest number of chromosomes in the non-polyploid eukaryotic organisms.
Article in Comparative cytogenetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.
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35 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.
- Speciation through chromosomal fusion and fission in Lepidoptera.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Pooled it
- Repeat-associated heterochromatin expansion in Acyclania tenebrosa, a noctuid with one of the largest lepidopteran genomes.BMC genomics · 2026Article
- Polyommatine Blue Butterflies Reveal Unexpected Integrity of the W Sex Chromosome Amid Extensive Chromosomal Fragmentation Linked to Telomere Restoration.Genome biology and evolution · 2025Article
- Do chromosome rearrangements fix by genetic drift or natural selection? Insights from Brenthis butterflies.Molecular ecology · 2024Article
- Spindle architecture constrains karyotype evolution.Nature cell biology · 2024Article
- Spindle architecture constrains karyotype in budding yeast.bioRxiv : the preprint server for biology · 2024Article
- Agent-based modeling of nuclear chromosome ensembles identifies determinants of homolog pairing during meiosis.PLoS computational biology · 2024Article
- A macroevolutionary role for chromosomal fusion and fission inScience advances · 2024Article
- Remarkable chromosomes and karyotypes: A top 10 list.Molecular biology of the cell · 2024Review
- Comparative genomics reveals the dynamics of chromosome evolution in Lepidoptera.Nature ecology & evolution · 2024Article
- Agent-based modeling of nuclear chromosome ensemble identifies determinants of homolog pairing during meiosis.bioRxiv : the preprint server for biology · 2024Article
- Lepidopteran Synteny Units reveal deep chromosomal conservation in butterflies and moths.G3 (Bethesda, Md.) · 2023Article
- Chromosomal conservatism vs chromosomal megaevolution: enigma of karyotypic evolution in Lepidoptera.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023Article
- The Role of Repetitive Sequences in Repatterning of Major Ribosomal DNA Clusters in Lepidoptera.Genome biology and evolution · 2023Article
- Whole-Genome Analysis Reveals the Dynamic Evolution of Holocentric Chromosomes in Satyrine Butterflies.Genes · 2023Article
- Article
- Dissecting cricket genomes for the advancement of entomology and entomophagy.Biophysical reviews · 2022Review
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- Origin of a Giant Sex Chromosome.Molecular biology and evolution · 2021Article
- Chromosomal and DNA barcode analysis of theComparative cytogenetics · 2021Article
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Abstract
The blue butterfly species Polyommatus (Plebicula) atlanticus (Elwes, 1906) (Lepidoptera, Lycaenidae) is known to have a very high haploid number of chromosomes (n= circa 223). However, this approximate count made by Hugo de Lesse 45 years ago was based on analysis of a single meiotic I metaphase plate, not confirmed by study of diploid chromosome set and not documented by microphotographs. Here I demonstrate that (1) Polyommatus atlanticus is a diploid (non-polyploid) species, (2) its meiotic I chromosome complement includes at least 224-226 countable chromosome bodies, and (3) all (or nearly all) chromosome elements in meiotic I karyotype are represented by bivalents. I also provide the first data on the diploid karyotype and estimate the diploid chromosome number as 2n=ca448-452. Thus, Polyommatus atlanticus is confirmed to possess the highest chromosome number among all the non-polyploid eukaryotic organisms.
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