QTL mapping of cucumber fruit flesh thickness by SLAF-seq.

ABSTRACT: Cucumber is an agriculturally and economically important vegetable crop worldwide. Fruit flesh thickness is an important trait for cucumber and also a central determinant of yield, yet little is known about the underlying mechanism of this trait. In this study, bulked segregant analysis (BSA) combined with specific length amplified fragment sequencing (SLAF-seq) was applied to finely map the gene that underlies fruit flesh thickness in cucumber. A 0.19-Mb-long quantitative trait locus on chromosome 2 controlling fruit flesh thickness (QTL fft2.1) was identified and further confirmed by simple sequence repeat (SSR) marker-based classical QTL mapping in 138 F2 individuals. Gene prediction of this 0.19-Mb region identified 20 genes. Quantitative RT-PCR revealed higher expression levels of Csa

SUBMITTER: Xu X 

PROVIDER: S-EPMC4623748 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature