Strain (biology)

In biology, strain is used in three related ways.

Microbiology/Virology[edit | edit source]

A strain is a genetic variant or subtype of a virus or bacterium. For example, a "flu strain" is a certain biological form of the influenza or "flu" virus. Compare clade.

Plants[edit | edit source]

A strain is a group of plants with similar (but not identical) appearance and/or properties. The term has no official status. See cultivar.

Rodents[edit | edit source]

A mouse or a rat strain is a group of animals that is genetically uniform. Strains are used in laboratory experiments. Mouse strains can be inbred, mutated or genetically engineered, while rat strains are usually inbred.

External links[edit | edit source]

• International Mouse Strain Resource (IMSR)
• Rat strain index

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