Abstract

This paper presents the results of an analysis of karyotypes of larvae of Chironomus plumosus L., 1758 from the Rybinsk Reservoir collected in 2016–2019. Fourteen sequences of discs of polytene chromosomes have been revealed in 367 individuals. The karyofund of the studied population has been enriched with 23 new genomic combinations and includes 136 combinations for 1013 individuals throughout the period of our observations (2013–2019). The frequency of occurrence of the “standard” genomic combination is 0.7%; the frequency of occurrence of pluA3 and pluA4 sequences, which are characteristic of the reservoir, has also increased. The frequency of occurrence of the pluE1.2 combination has significantly increased. There is a trend towards a decrease in intrapopulation cytogenetic distances. An analysis of differences in the frequency of occurrence of individual sequences throughout the observation period has been carried out.

中文翻译：

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气候变暖期间雷宾斯克水库羽摇蚊（双翅目、摇蚊科）核基变异性

摘要

本文介绍了对2016-2019 年收集的雷宾斯克水库的 1758 年羽摇蚊幼虫核型分析的结果。已在 367 个个体中揭示了 14 条多线染色体圆盘序列。在我们的观察期间（2013-2019 年），研究人群的核基丰富了 23 种新的基因组组合，包括 1013 个人的 136 种组合。“标准”基因组组合的出现频率为 0.7%；作为储层特征的pluA3和pluA4序列的出现频率也有所增加。pluE1.2的出现频率组合显着增加。存在种群内细胞遗传距离减小的趋势。对整个观察期内单个序列出现频率的差异进行了分析。