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Extreme transgressive segregation for rhoifolin reveals breeding potential in strawberry F1 hybrids

José G Vallarino1, Luca Mazzoni2, Rohullah Qaderi2

  • 1Department of Molecular Biology and Biochemistry, Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Málaga, Spain.

Food Chemistry
|May 13, 2026
PubMed

Keywords:
FlavonoidsFragaria × ananassaFunctional foodsHeritabilityMetabolomicsTransgressive segregation

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Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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The chi-square test is a statistical hypothesis test. It is used to check whether there is a significant difference between an expected value and an observed value. In the context of genetics, it enables us to either accept or reject a hypothesis, based on how much the observed values deviate from the expected values.
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