Complete chloroplast genome of two Brachycorythis (Orchidaceae) species from China: comparative analysis and phylogenetic implications.

ABSTRACT:

Background

Brachycorythis Lindl. (Orchidinae, Orchidaceae) was characterized by a large and densely leafy stem throughout its length, comprising about 35 species with African-Asian disjunct distribution. However, the intergeneric and infrageneric phylogeny of Brachycorythis has been debated based on morphological and molecular data. The chloroplast (cp.) genomes of B. henryi and B. menglianensis were investigated in detail and compared with those of related taxa for providing new evidence for the phylogenetics of Brachycorythis.

Results

The cp. genomes of B. henryi and B. menglianensis exhibited conserved quadripartite structures, measured 153,006 bp and 152,932 bp in length, with an identical GC content of 37.2%. Gene annotations identified 133 genes, 20 duplicated in the i

SUBMITTER: Ma D 

PROVIDER: S-EPMC12224626 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature