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HomeNature & BiologyTop 10 Plants with the Largest Fully Sequenced Genomes
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Top 10Updated 2026年3月13日

Top 10 Plants with the Largest Fully Sequenced Genomes

This ranking highlights plant species with fully sequenced genomes, ordered by their genome size in gigabases (Gb). Genome size is a critical metric reflecting genetic complexity and evolutionary adaptation. This list includes representative plant species from various clades known for their substantial genetic architecture.

Top 3
  1. 1American mistletoe (Phoradendron leucarpum)
  2. 2Norway spruce (Picea abies)
  3. 3Wheat (Triticum aestivum)
American mistletoe (Phoradendron leucarpum)
1
Norway spruce (Picea abies)
2
Wheat (Triticum aestivum)
3

Interesting Facts & Summary

In the 'genomic arms race' of the natural world, plants often defy our expectations. While the human genome consists of approximately 3.2 billion base pairs (Gb), the American Mistletoe (Phoradendron leucarpum) stands as a titan with a staggering genome size of roughly 100 Gb. This means the genome of this parasitic plant is over 30 times larger than that of a human. Intriguingly, as a 'hitchhiker' dependent on its host, the presence of massive amounts of repetitive sequences within its genome not only challenges our understanding of evolutionary complexity but also pushes the limits of computational power during the 'digital surgery' of full sequencing.

1
American mistletoe (Phoradendron leucarpum)
Genome Size (Gb)
115
Classification/Feature
Santalales
2
Norway spruce (Picea abies)
Genome Size (Gb)
19.6
Classification/Feature
Gymnosperm
3
Wheat (Triticum aestivum)
Genome Size (Gb)
17
Classification/Feature
Angiosperm/Hexaploid
4
Maize (Zea mays)
Genome Size (Gb)
2.3
Classification/Feature
Poaceae
5
Oil palm (Elaeis guineensis)
Genome Size (Gb)
1.8
Classification/Feature
Arecaceae
6
Soybean (Glycine max)
Genome Size (Gb)
1.1
Classification/Feature
Fabaceae
7
Black cottonwood (Populus trichocarpa)
Genome Size (Gb)
0.48
Classification/Feature
Salicaceae
8
Rice (Oryza sativa)
Genome Size (Gb)
0.43
Classification/Feature
Poaceae
9
Grapevine (Vitis vinifera)
Genome Size (Gb)
0.4
Classification/Feature
Vitaceae
10
Thale cress (Arabidopsis thaliana)
Genome Size (Gb)
0.13
Classification/Feature
Brassicaceae/Model organism
RankSpecies NameGenome Size (Gb)Classification/Feature
1
American mistletoe (Phoradendron leucarpum)
115
Santalales
2
Norway spruce (Picea abies)
19.6
Gymnosperm
3
Wheat (Triticum aestivum)
17
Angiosperm/Hexaploid
4
Maize (Zea mays)
2.3
Poaceae
5
Oil palm (Elaeis guineensis)
1.8
Arecaceae
6
Soybean (Glycine max)
1.1
Fabaceae
7
Black cottonwood (Populus trichocarpa)
0.48
Salicaceae
8
Rice (Oryza sativa)
0.43
Poaceae
9
Grapevine (Vitis vinifera)
0.4
Vitaceae
10
Thale cress (Arabidopsis thaliana)
0.13
Brassicaceae/Model organism

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