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Cytoplasmic male sterility (CMS) in plants is a male reproductive defect determined by mitochondrial genes and inherited maternally. CMS can be suppressed by nuclear restorer of fertility (Rf) genes. Therefore, CMS/Rf systems provide a classic model for the study of mitochondrial–nuclear interactions in plants. Moreover, CMS/Rf systems are economical, effective tools for the production of hybrid seeds...
Initiation of flowering, also called heading, in rice (Oryza sativa) is determined by the florigens encoded by Heading date 3a (Hd3a) and RICE FLOWERING LOCUS T1 (RFT1). Early heading date 1 (Ehd1) regulates Hd3a and RFT1. However, different rice varieties have diverged alleles of Ehd1 and Hd3a/RFT1 and their genetic interactions remain largely unclear.
Here we generated three segregating populations...
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