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.
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.
| Rank | Species Name | Genome Size (Gb) | Classification/Feature |
|---|---|---|---|
American mistletoe (Phoradendron leucarpum) | 115 | Santalales | |
Norway spruce (Picea abies) | 19.6 | Gymnosperm | |
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 |