Polyommatus atlanticus (blue butterfly, n= ca 223): Lukhtanov (2015)
Polyommatus atlanticus (blue butterfly)
n = ca 223 (de Lesse 1970)
https://gyazo.com/d0db605c49724a26c83dd542840e880b
Fig1
n = ca 224 (+2)
2n = at least 434 chromosomes
The author described the number of chromosomes in haploid cell and diploid cells of Polyommatus atlanticus (blue butterfly.
Previously, the count of chromosomes in blue butterfly has been already reported many years ago (de Lesse 1970) but there has been no photographs of chromosomes so the author tried to observe and count the chromosomes in blue butterfly.
The author counted the 224 chromosomes (+2 doutful chromosomes) in MI plate and 434 chromosomes in diploid cells.
There are many chromosomes so they have to be paired at meiosis to make the tension between homolog chromosomes. In such kind of case, homolog chromosomes can get close together and make the pairing without any interlocks within the reasonable time scale? How can cell manage such extreame homology search in the cell?