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Back to Study: From landrace to modern hybrid broccoli: the genom...
quantitative
Analysis v1
Strong Opposition

Modern broccoli’s genes stay linked together over much longer stretches of DNA than in purple cauliflower, meaning breeders have been mating very similar plants for generations.

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Pro
37
Against

Evidence from Studies

Supporting (0)

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Community contributions welcome

No supporting evidence found

Contradicting (1)

37

Community contributions welcome

37

From landrace to modern hybrid broccoli: the genomic and morphological domestication syndrome within a diverse B. oleracea collection.

Cross-Sectional Study

The study shows that modern broccoli has lost a lot of genetic variety due to breeding, but it never measured or compared how far genetic traits stay linked in broccoli vs. cauliflower, so the 13.5-fold claim can't be confirmed.

Source Study

From landrace to modern hybrid broccoli: the genomic and morphological domestication syndrome within a diverse B. oleracea collection.

Score: 37
DOI: 10.1038/s41438-020-00375-0

Similar Assertions

The broccoli we buy in stores today has much less genetic variety than the old-fashioned types grown in southern Italy, meaning farmers have lost a lot of natural diversity by breeding for uniformity.

37
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73%

Sprouting broccoli has way more unique genetic variants than store-bought broccoli, making it a treasure trove for breeders trying to add new traits.

37
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72%

Purple cauliflower has more perfectly uniform florets than modern broccoli — a trait breeders might want to copy into broccoli to make it look better.

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37
71%

Modern broccoli takes almost two months less to grow than sprouting broccoli, which means farmers can harvest it quicker and plant more crops per year.

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37
71%

Modern broccoli has much smaller individual florets than older varieties, which makes the head look tighter and more uniform — something breeders have been selecting for.

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37
71%