Zea
| Zea | |
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| Zea mays | |
| Klasifikasi ilmiah | |
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| Genus: | Zea |
| Spesies tipe | |
| Zea mays | |
| Sinonim[1] | |
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Zea adalah marga (genus) tumbuhan yang termasuk dalam suku rumput-rumputan (Poaceae). Anggota yang paling dikenal dan menjadi spesies tipe adalah jagung (Z. mays), yang merupakan salah satu tanaman penghasil pangan utama bagi umat manusia. Selain Z. mays, dikenal ada lima jenis (spesies) anggota Zea lainnya. Semuanya berasal dari Mesoamerika.
Jenis
There are five recognized species in the genus: Zea diploperennis, Zea perennis, Zea luxurians, Zea nicaraguensis, and Zea mays. The last species is further divided into four subspecies: huehuetenangensis, mexicana, parviglumis, and mays. The first three subspecies are teosintes; the last is maize, or corn, the only domesticated taxon in the genus Zea. The species are grouped into two sections, section Luxuriantes, with the first four species, and section Zea with Zea mays. The former section is typified by dark-staining knobs made up of heterochromatin that are terminal on most chromosome arms, while most subspecies of section Zea may have 0 to 3 knobs between each chromosome end and the centromere and very few terminal knobs (except Zea mays huehuetenangensis which has many large terminal knobs). The two perennials are thought to be one species by some.