Analysis of six chloroplast genomes provides insight into the evolution of Chrysosplenium (Saxifragaceae).

ABSTRACT:

Background

Chrysosplenium L. (Saxifragaceae) is a genus of plants widely distributed in Northern Hemisphere and usually found in moist, shaded valleys and mountain slopes. This genus is ideal for studying plant adaptation to low light conditions. Although some progress has been made in the systematics and biogeography of Chrysosplenium, its chloroplast genome evolution remains to be investigated.

Results

To fill this gap, we sequenced the chloroplast genomes of six Chrysosplenium species and analyzed their genome structure, GC content, and nucleotide diversity. Moreover, we performed a phylogenetic analysis and calculated non-synonymous (Ka) /synonymous (Ks) substitution ratios using the combined protein-coding genes of 29 species within Saxifragales and two additional speci

SUBMITTER: Wu Z 

PROVIDER: S-EPMC7488271 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature