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QTL Mapping definitions

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Termini in questo insieme (15)

  • Quantitative Trait
    A measurable characteristic showing continuous variation, influenced by multiple genetic factors rather than a single gene.
  • Complex Trait
    A phenotype shaped by the combined effects of several genes, often displaying a range of values rather than discrete categories.
  • Inbred Line
    A genetically uniform group produced by repeated mating among close relatives, resulting in near-identical genetic makeup.
  • F1 Generation
    The first set of offspring from a cross between two distinct inbred lines, typically showing intermediate traits.
  • Backcross
    A genetic cross between a hybrid and one of its original parental lines, used to analyze inheritance patterns.
  • BC1 Generation
    The progeny resulting from a backcross, crucial for analyzing genetic markers and trait inheritance.
  • SNP Marker
    A specific DNA position where a single nucleotide varies among individuals, serving as a reference point in genetic mapping.
  • Allele
    A variant form of a gene found at a specific locus, contributing to genetic diversity within a population.
  • LOD Score
    A statistical value used to assess the likelihood that a particular genomic region is linked to a trait of interest.
  • Fine Mapping
    A technique to narrow down a broad genomic region to pinpoint the exact gene responsible for a trait.
  • Nearly Isogenic Line
    A genetic line almost identical to another except for a small region, useful for isolating the effect of specific genes.
  • Crossover Event
    An exchange of genetic material between homologous chromosomes, creating new allele combinations in offspring.
  • Association Mapping
    A method for locating genes in randomly mating populations by analyzing non-random allele associations.
  • Linkage Disequilibrium
    A situation where certain alleles at different loci are inherited together more often than expected by chance.
  • Genome-Wide Association Study
    A large-scale analysis comparing genetic variants across many individuals to identify markers linked to specific traits or diseases.