Apomictic embryos in citrus arise from

Options

A. Dipolid egg
B. Synergids
C. Maternal sporophytic tissue in ovule
D. Antipodal cells

Answer

To solve the question regarding the origin of apomictic embryos in citrus, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term "Apomixis":**
- Apomixis refers to the formation of embryos without fertilization and meiosis. This means that the embryos develop directly from the maternal tissue without the need for sperm cells.

2. **Identify the Options Given:**
- The options provided are:
- A) Diploid egg
- B) Synergids
- C) Maternal sporophytic tissue
- D) Antipodal cells
- E) Ovule

3. **Analyze Each Option:**
- **Diploid Egg:** This would require fertilization to form an embryo, so it cannot be the correct answer.
- **Synergids:** These are involved in the fertilization process and do not give rise to embryos on their own.
- **Maternal Sporophytic Tissue:** This refers to the tissues of the ovule that are not involved in the fertilization process. In apomixis, embryos can develop from these tissues.
- **Antipodal Cells:** These cells are part of the embryo sac but do not typically give rise to embryos.
- **Ovule:** While the ovule is the structure where the embryo develops, the specific tissue from which the apomictic embryo arises needs to be identified.

4. **Determine the Correct Answer:**
- In citrus, apomictic embryos arise specifically from the maternal sporophytic tissue, such as the cells of the integument or the nucellus.

5. **Conclude:**
- Therefore, the correct answer to the question is that apomictic embryos in citrus arise from **maternal sporophytic tissue**.

### Final Answer:
Apomictic embryos in citrus arise from **maternal sporophytic tissue**.

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