Question

Apomictic embryos in citrus arise from

• A. Maternal sporophytic tissue in ovule
• B. Antipodal cells
• C. Diploid cells
• D. Synergids

Answer 1

The correct option is A Maternal sporophytic tissue in ovule

Apomixis is a kind of asexual reproduction in which viable embryo is formed within the confines of the seed coat, without meiosis and syngamy. Adventive embryony is a type of Apomixis found in Citrus in which there is the formation of extra embryos due to sporophytic budding. One or more diploid sporophytic cells, either nucellus or integuments undergo stages of embryogeny and eventually develop into mature embryos.

Hence, in Citrus apomictic embryos arise from maternal sporophytic tissue in the ovule.

So, the correct answer is A.