Karyotype characteristics of Chironomus fraternus Wülker and Ch. beljaninae Wülker (Diptera, Chironomidae) from Northern Russia

Petrova, N. A.; Zhirov, S. V.

doi:10.1134/s0013873817060033

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…Only a few species have been previously recorded from the region of investigation: Chironomus beljaninae (Wülker, 1991) [1], Ch. plumosus (Linnaeus, 1758), Ch.…”

Section: Introductionmentioning

confidence: 99%

Karyotypes and COI Gene Sequences of Chironomus sp. Le1 (Kiknadze and Salova, 1996), Ch. laetus (Belyanina and Filinkova, 1996) and Their Hybrid from the Yamal Peninsula, Arctic Zone of Russia

Bolshakov

Прокин

Pavlov

et al. 2022

Insects

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The study of the biological diversity of the Arctic zone yields intriguing results. Initial research on the lakes of the Yamal Peninsula resulted in the identification of Chironomus laetus and the hybrid Ch. laetus x Ch. sp. Le1. To avoid misidentification, we used morphological, cytogenetic, and molecular genetic approaches. By cytogenetics, in Ch. sp. Le1, seven banding sequences were found: Le1A1, Le1B1, Le1C1, Le1D1, Le1E1, Le1F1, and Le1G1. The karyotype of Ch. laetus was mapped for the first time; it is the first species with the arm combinations AE BC DF G. We propose the name of a new cytocomplex—“laetus”. DNA-barcoding of the COI gene was carried out for Ch. laetus and Ch. laetus x Ch. sp. Le1 for the first time. The estimated genetic distance between the sequences of Ch. laetus and Ch. riihimakiensis is 2.3–2.5%. The high similarity in morphology, banding sequences, and the possibility of hybridization indicate a close relationship between Ch. laetus and Ch. sp. Le1, which is assumed to be the northern variant of Ch. riihimakiensis. Molecular genetic data suggests the presence of a subgroup with Ch. laetus.

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“…Only a few species have been previously recorded from the region of investigation: Chironomus beljaninae (Wülker, 1991) [1], Ch. plumosus (Linnaeus, 1758), Ch.…”

Section: Introductionmentioning

confidence: 99%