Evolution of six novel ORFs in the plastome of Mankyua chejuense and phylogeny of eusporangiate ferns.

ABSTRACT: In this paper, three plastomes of Mankyua chejuense, Helminthostachys zeylanica, and Botrychium ternatum in Ophioglossaceae were completely sequenced in order to investigate the plastome evolution and phylogeny of eusporangiate ferns. They were similar to each other in terms of length and the gene orders; however, six unknown open reading frames (ORFs) were found between rps4 and trnL-UAA genes in M. chejuense. Similar sequence regions of six ORFs of M. chejuense were found at the plastomes of Ophioglossum californicum and H. zeylanica, as well as the mitochondrial genome (mitogenome) of H. zeylanica, but not in B. ternatum. Interestingly, the translated amino acid sequences of three ORFs were more similar to the proteins of distantly related taxa such as algae and bacteria than they were

SUBMITTER: Kim HT 

PROVIDER: S-EPMC6220310 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature