DMPQ-Write a short note on GM Mustard.

DMH-11 is a Genetically Modified (GM) mustard hybrid. Hybrids are normally obtained by crossing 2 genetically diverse plants from the same species. The 1st-generation offspring resulting from it has higher yields than what either of the parents is individually capable of giving. But there is no natural hybridization system in mustard, unlike in, say, cotton, maize or tomato. This is because its flowers contain both the female (pistil) and male (stamen) reproductive organs, making the plant naturally self-pollinating.

What scientist has done is to create a viable hybridization system in mustard using GM technology. The resulting GM mustard hybrid, it is claimed, gives 25-30% more yield than the best varieties such as ‘Varuna’ currently grown in the country.

Scientists at the Centre for Genetic Manipulation of Crop Plants (CGMCP) in Delhi University, however, showed that this problem could be addressed by crossing Indian mustard cultivars with juncea lines of East European origin like ‘Early Heera’ and ‘Donskaja’. The combination of the 2 divergent gene pools enhanced the crossing options; the resultant F1 progeny were found to exhibit significant heterosis.

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