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The article presents stages of development and testing new rice variety Nautilus with blast resistance genes Pi-b and Pi-z. Basing on the use of DNA-marking methods, breeding material carrying the target genes was developed. The obtained material was studied in the links of breeding process in the field. Based on the results of field testing, 6 lines were identified, of which VNIIR 6016 turned out to be the best in terms of a complex of economically valuable traits. In 2016, this sample was transferred to the State variety testing under the name Nautilus. In 2019, a new rice variety Nautilus was included in the register of breeding achievements and approved for use in the Russian Federation in Krasnodar region. The study of variety Nautilus in 2019-2020 in an ecological test confirmed its high resistance to blast, in comparison with other released varieties. It took 10 - 12 years to develop the variety.

Development of rice variety with blast resistance genes Pi-b and Pi-z basing on DNA-technologies