Future perspective in soybean breeding
2008
Đorđević, V., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Miladinović, J., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Balešević-Tubić, S., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Đukić, V., Institute of Field and Vegetable Crops, Novi Sad (Serbia)
Plant breeding usually considers selecting superior genotype from large and variable plant populations. Widespread use of molecular markers in study of complex, quantitative traits has inadequate application in plant breeding. Reasons for this disproportion lying in the nature of complex traits. Main concepts of application molecular markers in soybean breeding consider QTL detection, developing procedure for marker based selection and estimates of QTL effect. Success of appropriate molecular marker application concept possesses several challenges: type of molecular markers, quality of phenotypic data, epistasis, G x E interaction, QTL x environment and QTL x genetic background interaction. Soybean genome is covered by 4000 different types of markers, it is precondition for successful mapping of complex traits and marker assisted selection. Due to inconsistency of QTLs simple transfer of QTLs in to new soybean variety is very difficult and uncertain. Even closely related are parental populations, whit one common genotype, having different QTLs for complex traits. Accordingly to this fact, breeding procedure need to involve QTL analysis whit simultaneously selection of superior progeny. One time embedded linkage between molecular markers and QTL can be used for screening seed remnant of that biparental population.
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