Control of a key transition from prostrate to erect growth in rice domestication
Control of a key transition from prostrate to erect growth in rice domestication
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控制水稻驯化过程中从平伏生长到直立生长的关键转变
DOI：
10.1038/ng.197
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发表时间：
2008-11-01
期刊：
影响因子：
30.8
通讯作者：
Sun, Chuanqing
中科院分区：
文献类型：
--
作者：
Tan, Lubin;Li, Xianran;Sun, Chuanqing
从原始野生稻（O. rufipogonGriff.）水稻直立生长是水稻驯化过程中最关键的事件之一。这一进化步骤重要地改善了植物结构并增加了谷物产量。本研究发现元江野生稻的匍匐生长受位于第7染色体上的一个半显性基因PROG 1（PROSTRATE GROWTH 1）控制，该基因编码一个Cys 2-His 2锌指蛋白。sativa破坏了p53 1的功能并使p53 1的表达失活，从而导致栽培稻直立生长、更多的粒数和更高的籽粒产量。序列比较显示，来自17个国家的182个栽培稻品种，包括87个籼稻和95个粳稻品种，携带相同的突变，这些突变可能在水稻驯化过程中已经固定。
The transition from the prostrate growth of ancestral wild rice (O. rufipogonGriff.) to the erect growth ofOryza sativacultivars was one of the most critical events in rice domestication. This evolutionary step importantly improved plant architecture and increased grain yield. Here we find that prostrate growth of wild rice from Yuanjiang County in China is controlled by a semi-dominant gene,PROG1(PROSTRATE GROWTH 1), on chromosome 7 that encodes a single Cys2-His2zinc-finger protein.prog1variants identified inO. sativadisrupt theprog1function and inactivateprog1expression, leading to erect growth, greater grain number and higher grain yield in cultivated rice. Sequence comparison shows that 182 varieties of cultivated rice, including 87indicaand 95japonicacultivars from 17 countries, carry identical mutations in theprog1coding region that may have become fixed during rice domestication.