Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 354

Unlike apospory and diplospory in which an embryo sac is formed, no embryo sac is formed in adventitious embryony. Instead, the source of the embryo could be somatic cells of the ovule, integuments, or ovary wall. This mechanism occurs commonly in Citrus but rarely in other higher plants.