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Construction of high density genetic linkage map of mango

Author:South Subtropical Crops Research Institute From:Chinese Academy of Tropical Agricultural Sciences Date:2017-09-15 Hits:
     Genetic maps are particularly important and valuable tools for quantitative trait loci (QTL) mapping and marker assisted selection (MAS). In this study, 173 F1 plants from the cross between ‘Jin-Hwang’ (Mangifera indica L.) and ‘Irwin’ (M. indica L.) and the parents were subjected to high-throughput sequencing and specific-locus amplified fragment (SLAF) library construction. After preprocessing, 66.02 G raw data containing 330.64 M reads were obtained. A total of 318,414 SLAFs were detected, of which 156,368 were polymorphic. Finally, 6,594 SLAFs were mapped onto the linkage map consisting of 20 linkage groups (LGs). The total length of the map was 3148.28 cM and the average distance between adjacent markers was 0.48 cM. The map could be considered the first high density map of mango and might form the basis for the fine QTL mapping and MAS of mango.

    World Tropical Zone