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Rice black-streaked dwarf virus disease (RBSDVD) transmitted by small brown planthopper (SBPH, Laodelphax striatellus) is one of the most destructive viral diseases in rice (Oryza sativa L.). It is urgent to explore resistance resources and genes to breed resistant cultivars for controlling this disease. In the present study, linkage analysis was performed using an RIL (recombinant inbred line) population...
Roots are a vital organ for absorbing soil moisture and nutrients and influence drought resistance. The identification of quantitative trait loci (QTLs) with molecular markers may allow the estimation of parameters of genetic architecture and improve root traits by molecular marker-assisted selection (MAS). A mapping population of 120 recombinant inbred lines (RILs) derived from a cross between japonica...
To understand geographical distribution of the genetic diversity of rice cultivars (Oryza sativa L.) and its trends in recent fifty years in China, 453 accessions were analyzed by 36 microsatellites loci and 42 phenotypic traits. Results revealed that the genetic diversity by SSRs is highly consistent with that by phenotypic traits and the genetic diversity of indica cultivars was higher than that...
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