Coadaptation

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coadaptation

[‚kō‚ad·əp′tā·shən]
(evolution)
The selection process that tends to accumulate favorably interacting genes in the gene pool of a population.

Coadaptation

 

the morphological and functional adaptation of organs to each other during the course of evolution; a form of correlation.

Coadaptation proceeds, using genetic changes, through natural selection of the most successful structural and functional organic interrelationships, at the same time assuring the adaptation of the organism as a whole to new life conditions.

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As a component of a coadapted complex, theory evolves in the direction of further justifying government's often increasing regulatory mandate for securing food safety.
This is contrary to models of speciation that rely on a random disruption of well coadapted traits that are continually buffered by stabilizing selective pressures within species (Carson 1982, 1985).
This Evolutionary Hypothesis proposes that different coadapted gene systems would have evolved independently in each parental genome.
Hayward and Breese (1993) described the genetic structure of inbred cereal landraces as "stable mixture of coadapted genotypes having different and complementary requirements for resources such as nutrients and light, and thus escaping competitive elimination".
Long-distance dispersal may take the individual to a habitat to which it is less adapted (Dias and Blondel 1996) and/or cause it to produce less fit offspring when reproducing with a philopatric individual, due to break down of coadapted gene complexes (Shields 1982; Waser and Price 1994).
Intentional inbreeding may then be favored by the evolution of coadapted gene complexes and/or adaptations to local environmental conditions (Mayr 1963, Moll et al.
polymorphism; Wade 1998) or may fix the population for a single coadapted set of maternal and offspring characters.
Since oviposition and gall formation is probably under the control of coadapted multilocus genetic systems, large shifts are unlikely.
When populations are adapted to different local conditions, genetic admixture can result in outbreeding depression or a reduction in population fitness caused by a breakdown of coadapted gene complexes or by swamping local adaptation (Shields 1982; Templeton 1986).
It is therefore unlikely that outbreeding depression due to disruption of coadapted gene complexes (Templeton 1986; Potts et al.
The assumption was that differently coadapted populations would always result in hybrids with reduced fitness.