Definition. A pedigree is the set of known parent-offspring relationships in a population, often displayed as a family tree diagram. This can be used to derive the relationships among animals in a population.
What is pedigree selection?
Pedigree selection is a breeding technique in which the breeder maintains the records of an ancestry of the cultivar which are called as Pedigree records. … It helps the breeder to improve specific individuals of the progeny line, revealing genes for desired traits.
What are the important uses of pedigree selection?
Pedigree selection can be made more useful by giving all information good and bad about ancestors, including the collateral relatives. Pedigree selection is particularly useful for initial selection for traits that are expressed in only one sex. Such selections can be made early and inexpensively.
What is pedigree and pedigree record?
a zootechnical document that contains information on the origin, breed, growth and development, productivity, and other qualities of pedigree animals. Pedigree records are maintained in order to standardize the data needed to appraise pedigree animals and determine their use.
What are the steps of pedigree method?
Crossing between selected parent plants is the first step in pedigree method. Seeds obtained by hybridization (F1 seeds) are planted with proper sowing distance. Seeds of about 20-30 plants are harvested in bulk and forwarded to grow F2 generation. Selection is the main process carried in this step.
What is animal pedigree?
The noun pedigree refers to the genetic background of an animal, although it is sometimes applied to people as well. A purebred dog, for example, comes with a verified pedigree, a list of all past parentage.
How many generations are shown in this pedigree?
(7.4) Pedigree flashcards
|How many generations are shown on this pedigree?,||3 generations are shown.|
|Which individual is a female affected by the trait of interest?,||I-2 is the affected female.|
|Which individual is a male affected by the trail of interest?,||III-2 is the affected male.|
What are the parts of a pedigree?
The Components of a Pedigree:
Squares are used to indicate males in a family. Circles are used to indicate females. If the individual is “affected” by the trait (dominant or recessive) we darken the shape. A line between a male and a female indicates a marriage or union.