Russian Journal of GeneticsRussian Journal of GeneticsГенетика0016-67583034-5103The Russian Academy of Sciences66702110.31857/S0016675823120123VDKHCWГЕНЕТИКА ЖИВОТНЫХPopulation Genetic Structure in Polar Bears (Ursus maritimus) from the Russian Arctic SeasПопуляционно-генетическая структура белого медведя (Ursus maritimus) в морях российской АрктикиSorokinP. A.СорокинП. А.sorokin-p@yandex.ruZvychaynayaE. Yu.ЗвычайнаяЕ. Ю.sorokin-p@yandex.ruIvanovE. A.ИвановЕ. А.sorokin-p@yandex.ruMizinI. A.МизинИ. А.sorokin-p@yandex.ruMordvintsevI. N.МордвинцевИ. Н.sorokin-p@yandex.ruPlatonovN. G.ПлатоновН. Г.sorokin-p@yandex.ruIsachenkoA. I.ИсаченкоА. И.sorokin-p@yandex.ruLazarevaR. E.ЛазареваР. Е.sorokin-p@yandex.ruRozhnovV. V.РожновВ. В.sorokin-p@yandex.ruSevertsov Institute of Ecology and Evolution, Russian Academy of SciencesИнститут проблем экологии и эволюции им. А.Н. Северцова Российской академии наук“Russian Arctic” National ParkНациональный парк “Русская Арктика”LTD “Arctic Research Center”ООО “Арктический Научный Центр”0112202359121393140626022025Copyright ©; 2023, П.А. Сорокин, Е.Ю. Звычайная, Е.А. Иванов, И.А. Мизин, И.Н. Мордвинцев, Н.Г. Платонов, А.И. Исаченко, Р.Е. Лазарева, В.В. РожновCopyright ©; 2023, П.А. Сорокин, Е.Ю. Звычайная, Е.А. Иванов, И.А. Мизин, И.Н. Мордвинцев, Н.Г. Платонов, А.И. Исаченко, Р.Е. Лазарева, В.В. Рожнов2023П.А. Сорокин, Е.Ю. Звычайная, Е.А. Иванов, И.А. Мизин, И.Н. Мордвинцев, Н.Г. Платонов, А.И. Исаченко, Р.Е. Лазарева, В.В. РожновП.А. Сорокин, Е.Ю. Звычайная, Е.А. Иванов, И.А. Мизин, И.Н. Мордвинцев, Н.Г. Платонов, А.И. Исаченко, Р.Е. Лазарева, В.В. Рожновhttps://transsyst.ru/0016-6758/article/view/667021

Population genetic structure in polar bear (Ursus maritimus) from model areas in the Russian Arctic is considered based on materials collected in the period 2010–2021. Data on polymorphism of 17 microsatellite loci of nuclear DNA and a 610 nucleotide long mtDNA D-loop fragment were obtained for 93 animals. For the studied sample of adult polar bears, a high genetic diversity of nuclear DNA and a low value of nucleotide variability π for mitochondrial DNA were found. For all genetic markers, differentiation of bears from the southern part of the Barents Sea from animals from the north of the Barents and Kara seas was found. These groups differ in the distribution of the mitochondrial marker (θst = 0.270) and are weakly differentiated by nuclear loci (Rst = 0.018).

Рассмотрена популяционно-генетическая структура белого медведя (Ursus maritimus) на модельных участках в морях российской Арктики по материалам, собранным в период 2010–2021 гг. Получены данные по полиморфизму 17 микросателлитных локусов ядерной ДНК и фрагмента D-петли мтДНК длиной 610 пн для 93 животных. Для исследованной выборки взрослых белых медведей обнаружено высокое генетическое разнообразие ядерной ДНК и низкое значение нуклеотидной изменчивости π по митохондриальной ДНК. По всем генетическим маркерам обнаружена дифференциация медведей из южной части Баренцева моря от животных севера Баренцева и Карского морей. Данные группировки различаются по распределению митохондриального маркера (θst = 0.270) и слабо дифференцируются по ядерным локусам (Rst = 0.018).

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