Animal Breeding Pedigree Diagram Example

Dog Coat Color Inheritance Pedigree

A three-generation pedigree showing autosomal recessive chocolate coat color inheritance in Labrador Retrievers. Both parents in Generation I are unaffected carriers (Bb); two of four offspring express the chocolate phenotype (bb, affected). In Generation III, an affected female bred to a carrier male produces a mixed litter.

類型 系譜圖標準 NSGC Pedigree Standardization (Bennett 2008)引擎 schematex-pedigree更新時間 2026/5/27

需求

“A recessive Labrador coat-color pedigree: two carrier parents have an affected son, an unaffected daughter, an affected proband daughter and an unaffected son. The affected daughter and a carrier partner have an affected son, an unaffected daughter and a carrier daughter.”

接著試試Add another unaffected puppyMark the carrier partner as consultand

這張圖裡有什麼

看懂背後的決策。

01Both Generation I parents are carriers (Bb)

obligate inference when both unaffected parents have affected offspring.

Proband (II-3) is the affected female selected for the Generation III cross.

03II-5 carrier status inferred from III-3 carrier offspring

demonstrates how pedigree analysis confirms genotype.

Adapt for any autosomal recessive trait in livestock breeding by updating individual IDs and trait labels.

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