QTL Analysis of Root Yield and Sugar Content Traits in Sugar Beet

doi:10.11924/j.issn.1000-6850.casb16120030

Abstract

Abstract: The objective is to carry out target gene cloning and other further researches, including breeding new varieties with high yield, high sugar content and disease resistance. In the study, 200 F2 individuals derived from the cross of‘JV34-2’and‘2B023’were used as materials. QTL location analysis of the root yield and sugar content traits of sugar beet was conducted with 123 SRAP primer pairs and 18 SSR primers. Using mapping analysis software of icimapping 3.1, 17 QTLs of root yield and sugar content trait were detected and located on the 6 linkage groups. 7 QTLs of root yield traits were located, and LOD was from 2.5322 to 4.0098, and PVE was at a range of 4.5704%-12.3782%. 10 QTLs of sugar content trait were located, and LOD was from 2.5385 to 10.8314, and PVE was at a range of 2.3482%-19.3828%. The study got the most QTL mapping sites in the important economic traits QTL research of domestic sugar beet.

CLC Number:

S566.3

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