Question:
Famous blue coloured variety ‘Applause’ belongs to which of the following flower crop?
Famous blue coloured variety ‘Applause’ belongs to which of the following flower crop?
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'Suntory Blue Rose Applause' is the world's first commercially available genetically engineered blue rose (Rosa hybrida). Its development is a landmark achievement in modern flower biotechnology.
Updated On: Aug 13, 2026
- Lilium longiflorum
- Rosa hybrida
- Dianthus caryophyllus
- Tagetes erecta
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
True blue flowers are rare in several major commercial ornamental species because they naturally lack the genetic pathway to synthesize blue-colored anthocyanidins, such as delphinidin.
Biotechnology and genetic engineering have been used to introduce foreign genes to create transgenic "blue" flowers.
Step 2: Detailed Explanation:
Roses (Rosa hybrida) naturally lack the enzyme flavonoid $3',5'$-hydroxylase ($\text{F}3'5'\text{H}$), which is essential for synthesizing blue delphinidin pigments.
Consequently, true blue roses cannot be produced through traditional breeding methods.
In a breakthrough collaboration, scientists at the Japanese company Suntory and the Australian firm Florigene successfully developed the world's first genetically modified "blue" rose.
They introduced the $\text{F}3'5'\text{H}$ gene from pansy into rose plants while using RNA interference (RNAi) to suppress the endogenous red-pigment pathway.
This transgenic rose variety, characterized by an attractive mauve/blue-violet color, was commercially released under the name 'Applause' (Suntory Blue Rose Applause).
Therefore, the variety 'Applause' belongs to Rosa hybrida.
Step 3: Final Answer:
The blue variety 'Applause' belongs to Rosa hybrida, which corresponds to option (B).
True blue flowers are rare in several major commercial ornamental species because they naturally lack the genetic pathway to synthesize blue-colored anthocyanidins, such as delphinidin.
Biotechnology and genetic engineering have been used to introduce foreign genes to create transgenic "blue" flowers.
Step 2: Detailed Explanation:
Roses (Rosa hybrida) naturally lack the enzyme flavonoid $3',5'$-hydroxylase ($\text{F}3'5'\text{H}$), which is essential for synthesizing blue delphinidin pigments.
Consequently, true blue roses cannot be produced through traditional breeding methods.
In a breakthrough collaboration, scientists at the Japanese company Suntory and the Australian firm Florigene successfully developed the world's first genetically modified "blue" rose.
They introduced the $\text{F}3'5'\text{H}$ gene from pansy into rose plants while using RNA interference (RNAi) to suppress the endogenous red-pigment pathway.
This transgenic rose variety, characterized by an attractive mauve/blue-violet color, was commercially released under the name 'Applause' (Suntory Blue Rose Applause).
Therefore, the variety 'Applause' belongs to Rosa hybrida.
Step 3: Final Answer:
The blue variety 'Applause' belongs to Rosa hybrida, which corresponds to option (B).
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