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Changes in Allele Frequencies and Genetic Diversity in Red Clover after Selection for Cold Tolerance Using SSR Markers

Author

Listed:
  • Jurica Primorac

    (Faculty of Agriculture and Food Technology, University of Mostar, Biskupa Čule bb, 88000 Mostar, Bosnia and Herzegovina)

  • Hrvoje Šarčević

    (Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, 10000 Zagreb, Croatia)

  • Zrinka Knezović

    (Faculty of Agriculture and Food Technology, University of Mostar, Biskupa Čule bb, 88000 Mostar, Bosnia and Herzegovina)

  • Aleš Vokurka

    (Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, 10000 Zagreb, Croatia)

  • Ana Mandić

    (Faculty of Agriculture and Food Technology, University of Mostar, Biskupa Čule bb, 88000 Mostar, Bosnia and Herzegovina)

  • Snježana Bolarić

    (Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, 10000 Zagreb, Croatia)

Abstract

The selection of red clover ( Trifolium pratense L.) populations adapted to extreme environmental conditions is of great importance due to continuing climate change. The plant material analyzed with simple sequence repeat (SSR) markers included two parent populations, P1 (cultivar ‘Reichersberger’) and P3 (cultivar ‘Croatia’) and their reselections, which were created after one cycle of selection under cold temperature conditions. The reselections PS1 and PS3 were produced by intercrossing 38 surviving plants of parent populations P1 and P3, respectively. A total of 48 plants from each cultivar and each reselection were randomly selected for SSR analysis. Sixteen SSR primer pairs were selected, taking into account the presence of loci on all seven pairs of red clover chromosomes. An increase in the average frequency of alleles from the initial populations to the populations after one cycle of selection was observed, followed by a decrease in the number of alleles. Out of a total of 16 loci, the Waples neutrality test revealed significant frequency changes at 12 loci from P1 to PS1 and 9 loci from P3 to PS3 populations. The genetic diversity in the studied populations did not change significantly after selection, leaving enough genetic variability as a prerequisite for the success of future selection.

Suggested Citation

  • Jurica Primorac & Hrvoje Šarčević & Zrinka Knezović & Aleš Vokurka & Ana Mandić & Snježana Bolarić, 2023. "Changes in Allele Frequencies and Genetic Diversity in Red Clover after Selection for Cold Tolerance Using SSR Markers," Agriculture, MDPI, vol. 13(10), pages 1-13, October.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:10:p:2019-:d:1262040
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    References listed on IDEAS

    as
    1. Wen Li & Chongke Zheng & Jinjun Zhou & Zhizhen Zhang & Guanhua Zhou & Xianzhi Xie, 2021. "Characterization of a naturally occurring early-flowering rice mutant resulting from a novel variation in the Ghd7 locus," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 57(4), pages 166-169.
    2. Daniel P. Roberts & Autar K. Mattoo, 2018. "Sustainable Agriculture—Enhancing Environmental Benefits, Food Nutritional Quality and Building Crop Resilience to Abiotic and Biotic Stresses," Agriculture, MDPI, vol. 8(1), pages 1-24, January.
    3. Giedrius Petrauskas & Eglė Norkevičienė & Lesia Baistruk-Hlodan, 2023. "Genetic Differentiation of Red Clover ( Trifolium pratense L.) Cultivars and Their Wild Relatives," Agriculture, MDPI, vol. 13(5), pages 1-13, May.
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