Conflicting phylogenetic signals in plastomes of the tribe Laureae (Lauraceae).

ABSTRACT:

Background

Gene tree discordance is common in phylogenetic analyses. Many phylogenetic studies have excluded non-coding regions of the plastome without evaluating their impact on tree topology. In general, plastid loci have often been treated as a single unit, and tree discordance among these loci has seldom been examined. Using samples of Laureae (Lauraceae) plastomes, we explored plastome variation among the tribe, examined the influence of non-coding regions on tree topology, and quantified intra-plastome conflict.

Results

We found that the plastomes of Laureae have low inter-specific variation and are highly similar in structure, size, and gene content. Laureae was divided into three groups, subclades I, II and III. The inclusion of non-coding regions changed the phyloge

SUBMITTER: Xiao TW 

PROVIDER: S-EPMC7568859 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature