Fine mapping of a thrips resistance QTL in Capsicum and the role of diterpene glycosides in the underlying mechanism.

ABSTRACT:

Key message

A major thrips resistance QTL in Capsicum was fine-mapped to a region of 0.4 Mbp, and a multidisciplinary approach has been used to study putative underlying mechanisms. Resistance to thrips is an important trait for pepper growers. These insects can cause extensive damage to fruits, flowers and leaves on field and greenhouse grown plants worldwide. Two independent studies in Capsicum identified diterpene glycosides as metabolites that are correlated with thrips resistance. In this study, we fine-mapped a previously defined thrips resistance QTL on chromosome 6, to a region of 0.4 Mbp harbouring 15 genes. Two of these 15 candidate genes showed differences in gene expression upon thrips induction, when comparing plants carrying the resistance allele in homozygous state t

SUBMITTER: van Haperen P 

PROVIDER: S-EPMC8081677 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature