The blue butterfly Polyommatus (Plebicula) atlanticus (Lepidoptera, Lycaenidae) holds the record of the highest number of chromosomes in the non-polyploid eukaryotic organisms

Lukhtanov, Vladimir A.

doi:10.3897/compcytogen.v9i4.5760

Cited by 56 publications

(48 citation statements)

References 34 publications

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“…The fact that multiple single fusions/fissions resulting in trivalents only weakly affect meiosis and fertility is supported not only by our data in the genus Melinaea , but also by data obtained for the genus Leptidea [Sichova et al, 2015[Sichova et al, , 2016 and the subgenus Agrodiaetus (Lepidoptera, Lycaenidae, genus Polyommatus ) [Lukhtanov, 2015].…”

Section: Chromosome Evolution and Its Implications For Diversificatiosupporting

confidence: 71%

“…Butterflies have the largest range of interspecific chromosome number variation, from n = 5 to approximately n = 224-226, which incidentally is the highest known number in non-polyploid eukaryotic organisms [Lukhtanov, 2014[Lukhtanov, , 2015. Lepidoptera may also harbor strong intraspecific chromosome number variation.…”

Section: Chromosome Evolution and Its Implications For Diversificatiomentioning

confidence: 99%

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Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus Melinaea (Lepidoptera, Nymphalidae)

McClure¹,

Dutrillaux²,

Dutrillaux³

et al. 2017

Cytogenet Genome Res

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Mitotic and meiotic chromosomes from 2 taxa of the genus Melinaea, M. satevis cydon and M. “satevis” tarapotensis (Lepidoptera: Nymphalidae), and from hybrids produced in captivity were obtained using an improved spreading technique and were subsequently analyzed. In one of the taxa, the presence of trivalents and tetravalents at diakinesis/metaphase I is indicative of heterozygosity for multiple chromosome fusions or fissions, which might explain the highly variable number of chromosomes previously reported in this genus. Two large and complex multivalents were observed in the meiotic cells of the hybrid males (32 chromosomes) obtained from a cross between M. “s.” tarapotensis (28 chromosomes) and M. s. cydon (40-43 chromosomes). The contribution of the 2 different haploid karyotypes to these complex figures during meiosis is discussed, and a taxonomic revision is proposed. We conclude that chromosome evolution is active and ongoing, that the karyotype of the common ancestor consisted of at least 48 chromosomes, and that evolution by chromosome fusion rather than fission is responsible for this pattern. Complex chromosome evolution in this genus may drive reproductive isolation and speciation, and highlights the difficulties inherent to the systematics of this group. We also show that Melinaea chromosomes, classically considered as holocentric, are attached to unique, rather than multiple, spindle fibers.

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Section: Chromosome Evolution and Its Implications For Diversificatiosupporting

confidence: 71%

Section: Chromosome Evolution and Its Implications For Diversificatiomentioning

confidence: 99%

Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus Melinaea (Lepidoptera, Nymphalidae)

McClure¹,

Dutrillaux²,

Dutrillaux³

et al. 2017

Cytogenet Genome Res

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“…This assumption seems to receive support from the fact that the greatest range of within-genus variation in chromosome number related to the fusion/fission rearrangements is described in organisms with holokinetic chromosomes (reviewed in Kuznetsova et al 2011). The evidence for the unique potential of holokinetic chromosomes’ fissions is provided by the blue butterfly Polyommatus atlanticus Elwes (Lycaenidae), 2n = ca 448-452, holding the record of the highest number of chromosomes in the non-polyploid eukaryotic organisms (Lukhtanov 2015). …”

Section: Chromosome Structurementioning

confidence: 99%

Comparative cytogenetics of Auchenorrhyncha (Hemiptera, Homoptera): a review

Kuznetsova

Aguin‐Pombo

2015

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A comprehensive review of cytogenetic features is provided for the large hemipteran suborder Auchenorrhyncha, which currently contains approximately 42,000 valid species. This review is based on the analysis of 819 species, 483 genera, and 31 families representing all presently recognized Auchenorrhyncha superfamilies, e.i. Cicadoidea (cicadas), Cercopoidea (spittle bugs), Membracoidea (leafhoppers and treehoppers), Myerslopioidea (ground-dwelling leafhoppers), and Fulgoroidea (planthoppers). History and present status of chromosome studies are described, as well as the structure of chromosomes, chromosome counts, trends and mechanisms of evolution of karyotypes and sex determining systems, their variation at different taxonomic levels and most characteristic (modal) states, occurrence of parthenogenesis, polyploidy, B-chromosomes and chromosome rearrangements, and methods used for cytogenetic analysis of Auchenorrhyncha.

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“…An unusual diversity of karyotypes is the most remarkable characteristic of Agrodiaetus . Species of this subgenus exhibit one of the highest ranges in chromosome numbers in the animal kingdom (Lukhtanov 2015). Haploid chromosome numbers (n) in Agrodiaetus range from n=10 in P. (A.) caeruleus (Staudinger, 1871) to n=134 in P. (A.) shahrami (Skala, 2001) (Lukhtanov and Dantchenko 2002a, Lukhtanov et al 2005).…”

Section: Introductionmentioning

confidence: 99%

A new butterfly species from south Russia revealed through chromosomal and molecular analysis of the Polyommatus (Agrodiaetus) damonides complex (Lepidoptera, Lycaenidae)

Lukhtanov¹,

Dantchenko²

2017

CCG

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Finding a new species is a rare event in easy-to-see and well-studied organisms like butterflies, especially if they inhabit well-explored areas such as the Western Palaearctic. However, even in this region, gaps in taxonomic knowledge still exist and here we report such a discovery. Using a combined analysis of chromosomal and molecular markers we demonstrate that Polyommatus blue populations from Daghestan (South Russia), previously identified as P. aserbeidschanus, represent in fact a new species which is described here as P. australorossicus sp. n. We also show that the enigmatic Polyommatus damonides described as a form of Polyommatus damone and later considered as an entity similar to P. poseidon or P. ninae is conspecific with a taxon previously known as P. elbursicus. As a result of our study, we propose several taxonomic changes within the P. damonides species complex and suggest the following new combinations: P. damonides elbursicus Forster, 1956, comb. n. and P. damonides gilanensis Eckweiler, 2002, comb. n.

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The blue butterfly Polyommatus (Plebicula) atlanticus (Lepidoptera, Lycaenidae) holds the record of the highest number of chromosomes in the non-polyploid eukaryotic organisms

Cited by 56 publications

References 34 publications

Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus <b><i>Melinaea</i></b> (Lepidoptera, Nymphalidae)

Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus <b><i>Melinaea</i></b> (Lepidoptera, Nymphalidae)

Comparative cytogenetics of Auchenorrhyncha (Hemiptera, Homoptera): a review

A new butterfly species from south Russia revealed through chromosomal and molecular analysis of the Polyommatus (Agrodiaetus) damonides complex (Lepidoptera, Lycaenidae)

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