GENETICS OF THE TRAITS IN THE RICE HYBRID ‘SVETLY X MAVR
https://doi.org/10.31367/2079-8725-2019-63-3-30-35
Abstract
Rice can form not only white, but also red, brown and black kernels. In black rice pericarp contains anthocyanin pigment, which has antioxidant activity and is beneficial to human health. The article is devoted to the development of new rice lines with black pericarp on the basis of the hybrid ‘Svetly × Mavr’. The purpose of the work is to develop rice new lines with black seed vessel on the genetic background of the variety ‘Svetly’. There has been carried out a genetic analysis of varying quantitative traits that affect rice productivity. Cleavage by pericarp color occurred according to the dihybrid scheme according to the type of recessive epistasis in the ratio 9:3:4. The black color of the pericarp was formed with the presence of two dominant Pb and Pp genes in the genotype, the brown one was determined by the Pb gene, and the white one was determined by the other combinations of genes. Inheritance of plant height occurred according to the overdominance of large values of the trait. Parental forms differed in the allelic state of two pairs of genes. Along the panicle length, there has been determined partial negative dominance and monogenic differences of the hybridized varieties. According to ‘number of spikelets per panicle’, there has been identified an overdominance of a larger value of the trait and the interaction of two pairs of genes. According to ‘1000-kernel weight’, there has been established partial dominance of large values of the trait and monogenic differences of the initial parental forms. There have been selected the best recombinant forms combining a compact erect panicle and grains with a black seed vessel, and there has been developed starting material for practical breeding. The study was carried out on the fields of the Experimental Station “Proletarskaya” of the Rostov Region in 2018.
About the Authors
P. I. Kostylev
FSBSI “Agricultural Research Center “Donskoy”
Russian Federation
Russian Federation
Doctor of Agricultural Sciences, professor, main researcher of the laboratory of rice breeding and seed-growing,
347740, Rostov region, Zernograd, Nauchny Gorodok, 3
E. V. Krasnova
FSBSI “Agricultural Research Center “Donskoy”
Russian Federation
Russian Federation
Candidate of Agricultural Sciences, leading researcher of the laboratory of rice breeding and seedgrowing,
347740, Rostov region, Zernograd, Nauchny Gorodok, 3
A. V. Aksenov
FSBSI “Agricultural Research Center “Donskoy”
Russian Federation
Russian Federation
agronomist of the laboratory of rice breeding and seed-growing,
347740, Rostov region, Zernograd, Nauchny Gorodok, 3
E. S. Balyukova
FSBSI “Agricultural Research Center “Donskoy”
Russian Federation
Russian Federation
assistant researcher of the laboratory of rice breeding and seed-growing,
347740, Rostov region, Zernograd, Nauchny Gorodok, 3
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Review
For citations:
Kostylev P.I., Krasnova E.V., Aksenov A.V., Balyukova E.S. GENETICS OF THE TRAITS IN THE RICE HYBRID ‘SVETLY X MAVR. Grain Economy of Russia. 2019;(3):30-35. (In Russ.) https://doi.org/10.31367/2079-8725-2019-63-3-30-35
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