Ecotype Ecospecies Cenospecies Comparium

Ecotype is the basic unit in biosystematics, adapted to a particular environment but capable of producing fertile hybrids with other ecotypes.

This ecotype is regarded as equivalent to subspecies of classical taxonomy.

Ecospecies is a group of plants comprising one or more ecotypes within the cenospecies, whose members are able to interchange their genes.  Ecospecies is regarded as equivalent to species of classical taxonomy.

Cenospecies is a group of plants representing one or more ecospecies of common evolutionary origin.   It is regarded as equivalent to subgenus of classical taxonomy.  Cenospecies of the same comparium are separated by genetic barriers and all hybrids between them are sterile.

Comparium is composed of one or more cenospecies that are not able to intercross.  Complete genetic barriers exist between different comparia.

The informations obtained from the above mentioned studies were compared with the data obtained through comparative morphology. And geographical distributions resulted in the recognition and identification of a total variety or species. To conclude, biosystematic study in the contemporary and modern taxonomy plays a vital role in separating and solving some of the problems that may develop in the identification of plants at the level of species. Biosystematist provides all the necessary data in solving the real position of species that was in controversy.

QUESTION :

1. What is Ecotype ?
2. Explain about Ecospecies ?
3. What is Cenospecies ?
4. Explain Comparium ?