Clarification of key genes for rice domestication

为了阐明水稻驯化的关键基因，对栽培稻不展穗的农艺效应进行了分析。对野生稻遗传背景下的近等基因系进行了田间试验。因此，具有封闭圆锥花序的植株表现出显著降低的种子破碎率和异交率。这些结果表明，穗形的简单形态变化对水稻的破粒授粉行为有很大的影响，对水稻的驯化有很大的影响。

In order to clarify key genes for rice domestication, the agronomical effects of non-spreading panicles of cultivated rice were analyzed. Near-isogenic lines for non-spreading panicles in the genetic background of wild rice were subjected to the field experiments. As a result, plants with closed panicles showed significantly reduced seed-shattering and outcrossing rates. These results suggests that a simple morphological change in panicle shape had a large impact on seed-shattering and pollinating behaviors and a strong influence on rice domestication.