Medicago truncatula
| Medicago truncatula | |
|---|---|
 |
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Tribe: | Trifolieae |
| Genus: | Medicago |
| Species: | M. truncatula |
| Binomial name | |
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Medicago truncatula Gaertn. |
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| Synonyms | |
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Medicago tribuloides Desr. |
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Medicago tribuloides Desr.
Medicago tribuloides var. breviaculeata Moris
Medicago truncatula var. breviaculeata (Moris) Urb.
Medicago truncatula var. longiaculeata Urb.
Medicago truncatula var. tribuloides (Desr.) Burnat
Medicago truncatula f. tricycla Nègre
Medicago truncatula var. tricycla (Nègre) Heyn
Medicago truncatula, the barrelclover,strong-spined medick,barrel medic, or barrel medick, is a small annual legume native to the Mediterranean region that is used in genomic research. It is a low-growing, clover-like plant 10–60 cm tall with trifoliate leaves. Each leaflet is rounded, 1–2 cm long, often with a dark spot in the center. The flowers are yellow, produced singly or in a small inflorescence of two to five together; the fruit is a small, spiny pod.
This species is studied as a model organism for legume biology because it has a small diploid genome, is self-fertile, has a rapid generation time and prolific seed production, is amenable to genetic transformation, and its genome has been sequenced.
It forms symbioses with nitrogen-fixing rhizobia (Sinorhizobium meliloti and Sinorhizobium medicae) and arbuscular mycorrhizal fungi including Rhizophagus irregularis (previously known as Glomus intraradices). The model plant Arabidopsis thaliana does not form either symbiosis, making M. truncatula an important tool for studying these processes.
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