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Question
Gossypium hirsutum is
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Solution
The correct option is A New world tetraploid crop
Gossypium hirsutum, also known as upland cotton or Mexican cotton, is the most widely planted species of cotton in the United States, constituting some 95% of all cotton production there. It is native to Mexico, the West Indies, northern South America, Central America and possibly tropical Florida. Worldwide, the figure is about 90% of all cotton production is of cultivars derived from this species. Most wild cottons are diploid, but a group of five species from America and Pacific islands are tetraploid, apparently due to a single hybridization event around 1.5 to 2 million years ago. The tetraploid species are Gossypium hirsutum, Gossypium tomentosum, Gossypium mustelinum, Gossypium barbadense. Thus, option A is correct.
Gossypium hirsutum, also known as upland cotton or Mexican cotton, is the most widely planted species of cotton in the United States, constituting some 95% of all cotton production there. It is native to Mexico, the West Indies, northern South America, Central America and possibly tropical Florida. Worldwide, the figure is about 90% of all cotton production is of cultivars derived from this species. Most wild cottons are diploid, but a group of five species from America and Pacific islands are tetraploid, apparently due to a single hybridization event around 1.5 to 2 million years ago. The tetraploid species are Gossypium hirsutum, Gossypium tomentosum, Gossypium mustelinum, Gossypium barbadense. Thus, option A is correct.
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