Ecological Genetics & Metagenomics Lab

Diagnostic characters for diploid and tetraploid species of green toads

In our new research, morphology of diploid (Bufotes sitibundus and B. perrini) and a tetraploid (B. pewzowi) species, as well as triploid hybrids (B. perrini x B. pewzowi) distributed in Kazakhstan and Kyrgyzstan was examined. The most important for discrimination indices related to foot length, forearm length and eye diameter were identified using multivariate statistics. The application of these diagnostic indices will allow non-invasive identification of individuals of these diploid and tetraploid species during field research and study of museum specimens.

В новом исследовании изучена морфология диплоидных (Bufotes sitibundus и B. perrini) и тетраплоидного (B. pewzowi) видов жаб, а также триплоидных гибридов B. perrini и B. pewzowi , распространенных в Казахстане и Кыргызстане. С использованием многомерной статистики были выявлены наиболее значимые индексы, связанные с длиной стопы, длиной предплечья и диаметром глаза. Применение этих диагностических индексов позволит неинвазивно идентифицировать особей данных видов во время полевых исследований и изучения музейных образцов.

Litvinchuk S.N., Svinin A.O., Dujsebayeva T.N. 2021. Morphological differentiation between diploid and polyploid species of green toads (Anura: Bufonidae: Bufotes) in Central Asia. Bonn Zoological Bulletin, 70 (2), 361–371. doi.org/10.20363/BZB-2021.70.2.361

Rapid adaptive radiation in a hillstream cyprinid fish in the East African White Nile River basin

Our work have appeared in a new issue of Molecular Ecology. With the use of ddRAD-seq genotyping we have studied adaptive radiation of six ecomorphs of cyprinid hill-stream fishes of the genus Garra in a river located in the Ethiopian Highlands in East Africa. Here we highlight how, driven by ecological opportunity, an ancestral trophically highly specialized lineage is likely to have rapidly radiated in a riverine environment promoted by the evolution of novel feeding strategies.

Наша работа появилась в новом выпуске «Molecular Ecology». С помощью ddRAD-seq генотипирования мы изучили адаптивную радиацию шести экоморф карповых горных рыб рода гарра (Garra) в реке, расположенной на Эфиопском нагорье в Восточной Африке. Здесь мы подчеркиваем, как, руководствуясь экологическими возможностями, предковая узкоспециализированная линия, претерпела быструю адаптивную радиацию в речной среде через эволюцию новых стратегий питания.

Levin B.*, Simonov E.*, Franchini P., Mugue N., Golubtsov A., Meyer, A. 2021. Rapid adaptive radiation in a hillstream cyprinid fish in the East African White Nile River basin. Molecular Ecology, 30(21), 5530–5550. doi: 10.1111/mec.16130
* equal contribution authors

Distribution of Gloydius halys in the Novosibirsk region is much wider than previously thought

Our short report on discovery of new marginal populations of the Halys Pit Viper (Gloydius halys) was published. These findings extend the known range of the species approximately 100 km to the west.

Опубликован наш краткий отчет об обнаружении новых краевых популяций обыкновенного щитомордника (Gloydius halys). Эти находки расширяют известный ареал вида примерно на 100 км к западу.


Simonov E., Lisachova L., Lisachov A. 2021. Discovery of new marginal populations of a regionally vulnerable snake, the Halys Pit Viper (Gloydius halys). North-Western Journal of Zoology, 17(1), 149–151.  http://biozoojournals.ro/nwjz/content/v17n1/nwjz_e217501_Simonov.pdf

Phylogenetic position of Caligus lacustris (Copepoda: Caligidae) is clarified

With our colleagues from Petrozavodsk and Novosibirsk we made the first phylogenetic analysis of the parasitic copepod Caligus lacustris Steenstrup et Lütken, 1861, the only freshwater species of the genus. Its phylogenetic position implies that specialization to freshwater habitats had happened once in a group of species that included the predecessors to C. centrodonti, C. curtus, C. brevipedis, and C. lacustris itself. See the paper below for the details.

Parshukov A.*, Vlasenko P.*, Simonov E.*, Ieshko E., Burdukovskaya T., Anikieva L., … Solovyev, M. 2021. Parasitic copepods Caligus lacustris (Copepoda: Caligidae) on the rainbow trout Oncorhynchus mykiss in cage aquaculture: morphology, population demography, and first insights into phylogenetic relationships. Parasitology Research, 120 (7), 2455–2467. https://doi.org/10.1007/s00436-021-07198-5
* contributed equally to this work

Fragment of the Figure 3 from the cited work

Microbial community structure in a host–parasite system

Our collaborative work with Mikhail Solovyev’s Lab on skin microbiota of Prussian carp (Carassius gibelio) infested by Argulus and Lernaea ectoparasites is published in the Journal of Applied Microbiology. We found that ectoparasites have the potential to alter skin microbiota, which in turn can play a possible role in the transmission of secondary bacterial infections caused by pathogenic bacteria in fish.

Kashinskaya E., Simonov E., Andree K., Vlasenko P., Polenogova O., Kiriukhin B., Solovyev M. 2021. Microbial community structure in a host–parasite system: the case of Prussian carp and its parasitic crustaceans. Journal of Applied Microbiologyhttps://doi.org/10.1111/jam.15071

Fragment of the Figure 1 from the cited work

Launching of Ranavirus project

Our postdoc Dr Artem Lisachov got governmental funding for the screening of ranavirus infection (Ranavirus sp.) in ectothermic vertebrates in West Siberia. Our lab is going to be the first in Russia to carry out large scale screening of emerging diseases affecting wild populations of reptiles, amphibians and fish.

Rana amurensis | Siberian wood frog in the picture © Evgeniy Simonov

Theme: Overlay by Kaira
Ecological & Evolutionary Genetics Research Group, 2021