Question

Which of the following is an example of sporophytic cell activation polyembryony?

Options

• Saxifraga and Bergenia

• Nymphaea and Orchids

• Citrus and Syzygium

• Casuarina and Ulmus

Answer 1

Citrus and Syzygium are examples of plants exhibiting sporophytic cell activation polyembryony, where cells of the nucellus or integuments develop directly into embryo tissue. This mechanism is significant in these economically important fruit crops, allowing for production of genetically identical seedlings.