安全与环境工程2024，Vol.31Issue(6)：270-276,7.DOI:10.13578/j.cnki.issn.1671-1556.20230326
野生稻(Oryza rufipogon)保护思考
Consideration on protection of wild rice(Oryza rufipogon)
摘要
Abstract
Asian domesticated rice(Oryza sativa)is originated from common wild rice(Oryza rufipogon).Chi-nese scientists have made important progress on the origin,evolution and spread of rice.In order to deeply un-derstand the key and core role of wild rice on the process of rice domestication,to improve the national aware-ness of ecological protection,and to strengthen the protection of wild rice resources,from an environmental bi-ology perspective,this paper discusses the relevant hot issues based on the origin and evolution of rice recorded by the rice phytoliths.The results of the latest research suggest that wild rice has been widely distributed in the middle and lower reaches of the Yangtze River since the late Pleistocene.This is necessary conditions for the rice origin.The origin and evolution of rice mainly witness five stages:① The wild rice harvest and utilization stage during 24 000～13 000 a before present;② Planting and domestication stage during 13 000～11 000 a be-fore present.About 11 000 a ago,successful domestication of rice started the farming and agricultural develop-ment;③The accelerated domestication stage during 11 000～6 600 a before present.About 6 600 a ago,non-shattering in rice tended to stabilize;④ 6 600～4 000 a before present is the stable development stage of rice do-mestication and shape;⑤ About 4 000 a ago,rice was differentiated into indica and japonica.The domestica-tion of ordinary wild rice into rice has experienced a long process of nearly ten thousand years,which can be said to be hard-won.The wild rice resources play a key and core role in the process of rice domestication.There-fore,strengthened protection of wild rice resources will make the wild rice germplasm resources better serve the contemporary and future,and it is of great significance to ensure national food security.关键词
植硅体分析/水稻/起源演化/野生稻资源/粮食安全Key words
phytolith analysis/Asian domesticated rice/origin and evolution/wild rice resource/food security分类
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李勇,顾延生..野生稻(Oryza rufipogon)保护思考[J].安全与环境工程,2024,31(6):270-276,7.基金项目
国家自然科学基金重点项目(U23A2023) （U23A2023）
