Rice — Three Domestications, Three Civilizations

The three lineages

• Oryza sativa japonica — short-grain, sticky. Domesticated in the Yangtze valley around 9,000 years ago. Foundation of Chinese, Japanese, Korean rice cuisine.
• Oryza sativa indica — long-grain, less sticky. Domesticated probably in eastern India, possibly hybridized from japonica. Foundation of South Asian, Southeast Asian, Persian, Middle Eastern rice cuisine.
• Oryza glaberrima — African rice. Domesticated in the inland Niger Delta around 3,000 years ago. Crossed the Atlantic with enslaved West Africans to the Carolina coast, where it underpins the Lowcountry rice economy.

The point is that "rice" is not one food. It's three independent domestications and a thousand regional cultivars.

What sticky-versus-loose means in the kitchen

Japonica rice is genetically lower in amylose, the starch component that produces firm, separate grains. It cooks sticky. It is the right rice for sushi, onigiri, Korean banchan, Japanese hot pot.

Indica rice is higher in amylose. It cooks loose, with separate grains. It is the right rice for biryani, pulao, jollof, pilaf, paella, Persian polo.

Trying to make biryani with japonica or sushi with basmati produces the wrong dish. The genetics matter.

Cultivars worth knowing

• Carolina Gold (Lowcountry) — heirloom long-grain, recovered from near-extinction by Glenn Roberts and Anson Mills.
• Basmati (Indian / Pakistani) — aromatic long-grain.
• Jasmine (Thai) — aromatic long-grain.
• Arborio, Carnaroli, Vialone Nano (Italian) — high-amylose short-grain bred for risotto.
• Bomba, Calasparra (Spanish) — bred for paella.
• Koshihikari (Japanese) — premium short-grain.
• Kalijira (Bangladeshi) — fragrant short-grain, brilliant for pulao.

Cooking technique by family

Short-grain (japonica): rinse well, cook with a 1:1.1 water ratio, rest covered after cooking.

Long-grain (indica): rinse well, soak 20 minutes, cook with 1:1.5 water ratio for absorption method, or boil-and-drain (pasta method) for biryani-style.

Risotto rice: do not rinse — you want the surface starch. Stir constantly with added stock.

Cross-reference

Judith Carney's Black Rice (2001) on the African lineage; Naomi Duguid's Burma and Persia cookbooks on the Asian lineages; Pierre Thiam's Senegal on contemporary West African rice cooking.

Three domestications

Rice (Oryza) was domesticated independently in three distinct
regions:

1. Asian rice (Oryza sativa) — domesticated in China's Yangtze
   River valley roughly 9,000 years ago. The two major subspecies
   are japonica (sticky, short-grain, the rice of Japan, Korea,
   northern China) and indica (longer-grain, the rice of South
   Asia and Southeast Asia).

2. African rice (Oryza glaberrima) — domesticated independently
   in the inland delta of the Niger River roughly 3,000 years ago.
   The Senegambian rice tradition that traveled to the Carolina
   Lowcountry was an African-rice tradition; the slave-trade-era
   transfer brought both the cultivars and the cultivation
   knowledge.

3. Wild American rice (Zizania) — not a true rice but a
   related grass; cultivated by Indigenous peoples around the
   Great Lakes for at least 4,000 years. The Anishinaabe
   tradition of harvesting manoomin (wild rice) remains active.

What each civilization built on rice

• Chinese rice civilization developed paddy agriculture, the
  Confucian state apparatus that depended on rice-tax collection,
  and the cuisine that culminates in dishes from congee to
  fried rice to mochi.
• Indian rice civilization developed biryanis, pulaos, dosas,
  idlis — a vast catalog of rice preparations across regional
  cuisines.
• Southeast Asian rice civilization (Vietnam, Thailand,
  Indonesia, Philippines) developed nuoc mam, jasmine rice,
  banh mi, and the broader fish-sauce-and-rice culinary tradition.
• West African rice civilization developed jollof, thieboudienne,
  benechin — the rice-and-stew foundation that crossed to the
  Americas.
• American Lowcountry tradition (descended from West African)
  developed Hoppin' John, red rice, Charleston ice cream (the
  rice-pudding-based dessert).

The post-Green-Revolution narrowing

As with wheat, the 20th-century Green Revolution narrowed the
diversity of rice cultivars dramatically. A small number of high-
yield IRRI (International Rice Research Institute) varieties now
account for the majority of global rice production.

The heirloom traditions persist but at risk. Carolina Gold rice
nearly went extinct in the 20th century before Glenn Roberts's
Anson Mills operation revived it. Black rice varieties from
Thailand, red rice from Bhutan, and Camargue red rice from France
all survive in small production.

What to cook

The rice you should have in your cupboard, for different uses:

• Carolina Gold for Lowcountry dishes (Hoppin' John, red rice,
  Charleston ice cream).
• Basmati (aged 18+ months) for Indian biryanis and pulaos.
• Jasmine for Southeast Asian dishes.
• Short-grain sushi rice (Calrose or Akita Komachi) for
  Japanese preparations.
• Arborio or Carnaroli for risotto.
• Wild rice (real Anishinaabe-harvested manoomin if you can
  find it; cultivated wild rice if not) for the American
  Indigenous tradition.

Further reading

• Judith Carney, Black Rice (2001).
• Francesca Bray, The Rice Economies (1986).
• Glenn Roberts (Anson Mills) — published essays.
• Various IRRI publications on rice diversity.