USE OF ALLELE-SPECIFIC MARKERS OF THE PPD AND VRN GENES FOR PREDICTING GROWING SEASON DURATION IN BARLEY CULTIVARS
Abstract
Allelic combinations of the Vrn-H1, Vrn-H2, Vrn-H3, Ppd-H1, and Ppd-H2 genes have been investigated with allele-specific molecular markers in 91 spring barley cultivars recommended for use in Russia and Belarus. In a field experiment under conditions of North-West Russia, heading date evaluation has been performed in these cultivars.
Barley varieties having the dominant Ppd-H1 allele were shown to overrun other genotypes in the developmental rate (heading date) and to mature earlier under long-day conditions. Among studied cultivars, grown in Russia, only 9 % possessed the dominant Ppd-H1 allele. A significant association was also found between the allele combination of Vrn genes and heading date of barley cultivars. Among cultivars with identical genotypes for Ppd-H1 and Ppd-H2, those having the allelic combination Vrn-H1vrn-H2Vrn-H3 flower significantly earlier than with other haplotypes. The use of allele-specific markers of Ppd and Vrn genes makes breeding for early ripeness easier and faster.
About the Authors
M. M. Zlotina
Vavilov Institute of Plant Industry (VIR), St. Petersburg, Russia
Russian Federation
Russian Federation
O. N. Kovaleva
Vavilov Institute of Plant Industry (VIR), St. Petersburg, Russia
Russian Federation
Russian Federation
I. G. Loskutov
Vavilov Institute of Plant Industry (VIR), St. Petersburg, Russia
Russian Federation
Russian Federation
E. K. Potokina
Vavilov Institute of Plant Industry (VIR), St. Petersburg, Russia
Russian Federation
Russian Federation
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