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Estimation of C-derived introgression into A. m. mellifera colonies in the Russian Urals using microsatellite genotyping

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Abstract

Background

Marker-assisted selection is well established in animal breeding method of selecting individuals with desirable traits in a breeding scheme based on DNA molecular marker patterns.

Objective

Genetic diversity and C-derived admixture into local purebred gene pool of A. m. mellifera colonies was assessed using polymorphism of nine microsatellite loci in order to provide further marker-assisted selection of desired honey bee colonies.

Methods

The genetic diversity and the level of C-derived introgression into A. m. mellifera colonies in the Shulgan-Tash Nature Reserve (Russia) was assessed based on nine microsatellite loci (ap243, 4a110, A24, A8, A43, A113, A88, Ap049, A28), which were analized using the fragment analysis of the PCR products in Applied Biosystems 3130 DNA Analyzer. Phylogenetic relationship of colonies was evaluated using Neighbor-Joining methods with Cavalli-Sforza and Edwards genetic distance using the PHYLIP 3.68. The model-based Bayesian clustering algorithm implemented in STRUCTURE 2.3.3 was employed to infer membership and introgression proportions (Q-value).

Results

In the Shulgan-Tash Nature Reserve colonies of A. m. mellifera subdivided into four groups by level of C-derived introgression. Only five colonies of A. m. mellifera had C-derived introgression which varied from 0.5 to 2%. The genetic diversity in colonies of A. m. mellifera varied from 0.12 to 0.40. The Neighbor-Joining tree demonstrates the genetic relationship of A. m. mellifera colonies, which subdivided into three groups with different levels of C-derived introgression. Group 1 combined five honey bee colonies Bort_1, Bort_2, Bort_3, Baisalyan_1, and Kush_7 with a fraction of introgression close to 0.000 and genetic diversity from 0.20 to 0.25.

Conclusion

The results showed the excellence of nine microsatellite loci genotyping in estimation of genetic diversity, distinguishing the two European evolutionary lineages M and C and estimating C-derived introgression. These genetic parameters can be applied further to perform the marker-assisted selection of purebred dark European honey bees.

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Acknowledgements

This work was supported by postdoctoral fellowships from Incheon National University to RI (2017).

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Authors

Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by RI, MLL, UY, and AN. The first draft of the manuscript was written by RI and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding authors

Correspondence to Rustem A. Ilyasov or Hyung-Wook Kwon.

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Conflict of interest

Rustem Ilyasov, Myeong-Lyeol Lee, Ural Yunusbaev, Alexey Nikolenko, and Hyung-Wook Kwon declare that they do not have a conflict of interest.

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Ilyasov, R.A., Lee, ML., Yunusbaev, U. et al. Estimation of C-derived introgression into A. m. mellifera colonies in the Russian Urals using microsatellite genotyping. Genes Genom 42, 987–996 (2020). https://doi.org/10.1007/s13258-020-00966-0

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  • DOI: https://doi.org/10.1007/s13258-020-00966-0

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