Plastid RNA editing reduction accompanied with genetic variations in Cymbidium, a genus with diverse lifestyle modes.

ABSTRACT: Recent sequencing efforts have broadly uncovered the evolutionary trajectory of plastid genomes (plastomes) of flowering plants in diverse habitats, yet our knowledge of the evolution of plastid posttranscriptional modifications is limited. In this study, we generated 11 complete plastomes and performed ultra-deep transcriptome sequencing to investigate the co-evolution of plastid RNA editing and genetic variation in Cymbidium, a genus with diverse trophic lifestyles. Genome size and gene content is reduced in terrestrial and green mycoheterotrophic orchids relative to their epiphytic relatives. This could be partly due to extensive losses and pseudogenization of ndh genes for the plastid NADH dehydrogenase-like complex, but independent pseudogenization of ndh genes ha

SUBMITTER: Zhe M 

PROVIDER: S-EPMC9209865 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature