Question:

Which of the following is specific origin of Bottlegourd?

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Bottlegourd (Lagenaria siceraria) originated in Tropical East Africa.
Its durable rind allowed it to float across oceans, leading to its early global distribution.
  • Tropical East Africa
  • Malabar region of Kerala
  • Canary islands
  • Mediterranean
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The Correct Option is A

Solution and Explanation

Step 1: Understanding the Concept:
Determining the center of origin for crop species is fundamental for understanding their evolutionary history, genetic diversity, and wild relatives.
Bottlegourd, botanically known as Lagenaria siceraria, is one of the oldest cultivated plants in the world, utilized historically as both food and functional containers.

Step 2: Detailed Explanation:

Phylogenetic studies and archaeological discoveries indicate that Lagenaria siceraria is native to Africa.
Wild populations of bottlegourd have been found in the wild habitats of Tropical East Africa, which is recognized as its primary center of origin.
The fruit of the wild ancestor of bottlegourd has a thin but extremely durable rind, enabling it to float across ocean currents without losing seed viability.
This natural seed dispersal mechanism allowed the species to reach the Americas and Asia thousands of years ago, establishing a wide pan-tropical distribution.
The other regions listed in the options represent secondary centers of diversity or separate ecosystems for other species:
1. The Malabar region of Kerala is noted for its high diversity of spices like black pepper.
2. The Canary Islands are a secondary home to several endemic flora but not bottlegourd.
3. The Mediterranean is the center of origin for crops like cabbage, beet, and olive.

Step 3: Final Answer:

The specific origin of Bottlegourd is Tropical East Africa, which corresponds to Option (A).
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