Domestication

agriculture

the production of goods through the growing of plants, animals and other life forms
Domestication

the genetic alteration of plants or animals as a result of human control of reproduction
Artificial Selection

selective pressures applied by humans (rather than natural environment)
Characteristics chosen to domesticate plants
- fast growth rate (e.g., annuals)
- easily stored
- easy to grow
- plentiful
- generally high nutritional quality
Common genetic changes in Domesticates (direct effects)
- increased yield (more seeds, larger size)
- more effective
- harvesting/processing
- loss of seed-dispersal mechanisms
- consistent & short-ripening time
- easier processing
- better taste
- greater docility (animals)
Common genetic changes in Domesticates (indirect effects)
- loss of defense mechanisms / competitive abilities
- less genetic diversity

Author

kamrunsreno

17290

Card Set

Domestication

Description

NRES 211 Final

Updated

2010-05-02T22:10:27Z

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