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Inter- and intraspecific variability of morphometric parameters of rodent spermatozoa

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A Correction to this article was published on 09 July 2021

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Abstract

The levels of interspecific and intraspecific variation in morphometric parameters of spermatozoa have been studied in seven wild rodent species of the families Cricetidae and Muridae and inbred CBA mice. The study of intraspecific variability of parameters included an analysis of within-population age-related variation and variation among individuals within a population. It has been found that, as expected, animal species is the factor contributing most to variation in the test parameters, but the degree of differences between species has been not always proportional to genetic distances between them. The proportion of within-population age-related variation is not significant and, hence, can be ignored in population studies on male reproduction. In contrast, the contribution of individual variation in the parameters of spermatozoa to their overall variation in each species is significant and should be taken into account when forming the samples and analyzing the results. The levels of intraspecific variation in the morphometric parameters of spermatozoa in wild rodents and inbred mice are similar to each other.

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Acknowledgements

We are grateful to our colleagues E.B. Grigorkina, Yu.E. Kropacheva, S.V. Mukhacheva, and T.S. Oslina for their help in collecting the material; and to S.V. Zykov for his help with electron microscopy. The reported study was funded by RFBR (Russian Foundation for Basic Research); project number 19-31-27001.

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Correspondence to Yu. A. Davydova.

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All applicable international, national, and institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the Institute of Plant and Animal Ecology, Russian Academy of Sciences.

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Smirnov, G.Y., Modorov, M.V. & Davydova, Y.A. Inter- and intraspecific variability of morphometric parameters of rodent spermatozoa. Zoomorphology 140, 405–418 (2021). https://doi.org/10.1007/s00435-021-00531-7

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  • DOI: https://doi.org/10.1007/s00435-021-00531-7

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