Q.108
Which is correct about the 4E-ms System of Producing Hybrid Wheat
(A) . The 4E chromosome carries Blue aleurone (Ba) gene with dosage effect
(B) . The 4E chromosome also carries male fertile (Ms) gene
(C) . The white seeds will give male sterile plant and used in hybrid seed production
(D) . Deep blue seed with 2n+2 chromosome will be used as maintainer line
Choose the correct answer from the options given below:
- 4E-ms Hybrid Wheat Production System:
- Uses an alien chromosome addition (chromosome 4E from the wild wheatgrass Thinopyrum elongatum) carrying:
- The Blue aleurone (Ba) gene as an endosperm marker.
- A male fertility restorer gene linked to Ba.
- Enables automated photoelectric sorting of selfed blue restoration grains from xenia-white male-sterile hybrid grains.
- Conclusion: Statements (A), (B), and (C) are correct. (Correct answer: Option 2)
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