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Identification and gene mapping of completely dominant earliness in rice (Oryza sativa L.)

, : Identification and gene mapping of completely dominant earliness in rice (Oryza sativa L.). Scientia Agricultura Sinica 34(3): 233-239

The completely dominant earliness was identified in a male-sterile and early maturing rice indica line 6442S-7. F1 progenies from 6442S-7 crossed with 13 various types of medium-or late-maturing varieties, shared the same heading date as 6442S-7. The segregation of heading date in the F2 and B1F1 populations showed that the earliness of 6442S-7 was mainly controlled by two dominant major genes.


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