Molecular Mapping and Candidate Gene Analysis for GA₃ Responsive Short Internode in Watermelon (Citrullus lanatus).

ABSTRACT: Plants with shorter internodes are suitable for high-density planting, lodging resistance and the preservation of land resources by improving yield per unit area. In this study, we identified a locus controlling the short internode trait in watermelon using Zhengzhouzigua (long internode) and Duan125 (short internode) as mapping parents. Genetic analysis indicated that F₁ plants were consistent with long internode plants, which indicates that the long internode was dominant over the short internode. The observed F₂ and BC₁ individuals fitted the expected phenotypic segregation ratios of 3:1 and 1:1, respectively. The locus was mapped on chromosome 9 using a bulked segregant analysis approach. The region was narrowed down to 8.525 kb having only one putative

SUBMITTER: Gebremeskel H 

PROVIDER: S-EPMC6982186 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature