Use of apomixis in Plant Breeding
Use of apomixis in Plant Breeding The Greek terms "APO" (away from) and "mixed" (the process of mixing or mingling) are the roots of the word "apomixis." It describes how a plant grows from a seed without the need for fertilization or typical sexual reproduction. The easiest way to define apomixis is as a reference to the asexual process. The resultant plant is a female parent plant clone. The female gametophyte, or embryo sac, is created during sexual reproduction by developmental processes that take place inside the ovule. After double fertilization, the resultant components are the embryo and endosperm. In higher plants, apomixis is a common occurrence. More than 35 groups of plants, including the Gramineae, Rosaceae, Compositae, and Rutaceae, are known to be apomictic. Apomixis is seen in major grains like wheat and maize. Apomixis Types There are three commonly known kinds of apomixis: adventitious embryony, apospory, and diplospory. Diplospory T...