Complete plastome sequences from Bertholletia excelsa and 23 related species yield informative markers for Lecythidaceae.

ABSTRACT:

Premise of the study

The tropical tree family Lecythidaceae has enormous ecological and economic importance in the Amazon basin. Lecythidaceae species can be difficult to identify without molecular data, however, and phylogenetic relationships within and among the most diverse genera are poorly resolved.

Methods

To develop informative genetic markers for Lecythidaceae, we used genome skimming to de novo assemble the full plastome of the Brazil nut tree (Bertholletia excelsa) and 23 other Lecythidaceae species. Indices of nucleotide diversity and phylogenetic signal were used to identify regions suitable for genetic marker development.

Results

The B. excelsa plastome contained 160,472 bp and was arranged in a quadripartite structure. Using the 24 plastome

SUBMITTER: Thomson AM 

PROVIDER: S-EPMC5991589 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature