SELECTION OF VARYING DIRECTION | BIONATURE

Some population biology concepts developed and championed by JBS Haldane in the 1950s are mentioned. Because of the motivating effect he had on others, his influence was out of proportion to the volume of his work at the time.

A notion raised by Haldane and Jayakar, that selection altering in direction over time would sustain a polymorphism, is investigated in the context of small populations subject to sampling error. It is determined that if the selection is random, the population will be ineffective if it is isolated. However, in a network of interconnected populations, independent changes in selection with time may produce genetic heterogeneity in space, which may tend to perpetuate polymorphism.

Please see the link :- https://globalpresshub.com/index.php/BN/article/view/589