Multiple choice

The genus _____ is the first known allotetraploid

  1. Raphanus sativus

  2. Triticum vulgare

  3. Brassica oleracea

  4. Raphanobrassica
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Raphanobrassica is an intergeneric hybrid between radish (Raphanus sativus) and cabbage (Brassica oleracea), created artificially in the early 20th century. As an allotetraploid, it contains two complete diploid sets from different parent species - one from Raphanus and one from Brassica. This was one of the first experimental demonstrations of allopolyploidy in plants.

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