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Articles | Volume 62, issue 2
Articles | Volume 62, issue 2
https://doi.org/10.5194/aab-62-403-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/aab-62-403-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 62, issue 2
Original study
 | 
10 Jul 2019
Original study |  | 10 Jul 2019

Interbreed variation in meiotic recombination rate and distribution in the domestic chicken Gallus gallus

Lyubov P. Malinovskaya, Katerina V. Tishakova, Natalia A. Volkova, Anna A. Torgasheva, Yakov A. Tsepilov, and Pavel M. Borodin

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Short summary
Recombination generates genetic variation and thus affects selection efficiency. Using immunolocalization of recombination proteins at the spermatocytes of males of six chicken breeds, we revealed high recombination rates in the roosters belonging to modern cross-breeds and low recombination rates in those belonging to ancient local breeds. Apparently, the recombination rate decreases over generations due to a decrease in genetic heterogeneity driven by inbreeding and artificial selection.
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