Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 9 (4), 683-90
eCollection

The Blue Butterfly Polyommatus (Plebicula) Atlanticus (Lepidoptera, Lycaenidae) Holds the Record of the Highest Number of Chromosomes in the Non-Polyploid Eukaryotic Organisms

Affiliations

The Blue Butterfly Polyommatus (Plebicula) Atlanticus (Lepidoptera, Lycaenidae) Holds the Record of the Highest Number of Chromosomes in the Non-Polyploid Eukaryotic Organisms

Vladimir A Lukhtanov. Comp Cytogenet.

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.

Keywords: Acipenser; Amoeba proteus; Astacus; Aulacantha scolymantha; Lycaenidae; Ophioglossum; Pacifastacus; Plebicula; Polyommatus; chromosome number; karyotype evolution; linkage group; vizcacha rat.

Figures

Figure 1.
Figure 1.
Male karyotype of Polyommatus (Plebicula) atlanticus, sample NK02A032. a MI plate b chromosome count in MI plate: red dots indicate distinct separate entities, blue dots indicate doubtful entities, n=224 red dots + 2 blue dots c diploid chromosome set observed in male asynaptic meiosis d chromosome number count in diploid chromosome set; at least 434 entities can be distinguished. Bar = 10 μm.

Similar articles

See all similar articles

Cited by 13 PubMed Central articles

See all "Cited by" articles

References

    1. Barker MS. (2013) Karyotype and genome evolution in Pteridophytes. In: Leitch IJ, Greilhuber J, Doležel J, Wendel JF. (Eds) Plant Genome Diversity 2: Physical Structure, Behaviour and Evolution of Plant Genomes. Springer, Wien, 245–253. doi: 10.1007/978-3-7091-1160-4_15 - DOI
    1. Bureš P, Zedek F. (2014) Holokinetic drive: centromere drive in chromosomes without centromeres. Evolution 68(8): 2412–2420. doi: 10.1111/evo.12437 - DOI - PubMed
    1. de Lesse H. (1970) Les nombres de chromosomes dans le groupe de Lysandra argester et leur incidence sur sa taxonomie [Lep. Lycaenidae]. Bulletin de la Société entomologique de France 75: 64–68.
    1. Dincă V, Lukhtanov VA, Talavera G, Vila R. (2011) Unexpected layers of cryptic diversity in Wood White Leptidea butterflies. Nature Communications 2: . doi: 10.1038/ncomms1329 - DOI - PubMed
    1. Dumont BL, Payseur BA. (2011) Genetic analysis of genome-scale recombination rate evolution in house mice. PLoS Genetics 7: . doi: 10.1371/journal.pgen.1002116 - DOI - PMC - PubMed

LinkOut - more resources

Feedback