Plastid phylogenomics uncovers multiple species in Medicago truncatula (Fabaceae) germplasm accessions.

ABSTRACT: Medicago truncatula is a model legume that has been extensively investigated in diverse subdisciplines of plant science. Medicago littoralis can interbreed with M. truncatula and M. italica; these three closely related species form a clade, i.e. TLI clade. Genetic studies have indicated that M. truncatula accessions are heterogeneous but their taxonomic identities have not been verified. To elucidate the phylogenetic position of diverse M. truncatula accessions within the genus, we assembled 54 plastid genomes (plastomes) using publicly available next-generation sequencing data and conducted phylogenetic analyses using maximum likelihood. Five accessions showed high levels of plastid DNA polymorphism. Three of these highly polymorphic accessions contained sequences from both M. truncatula

SUBMITTER: Choi IS 

PROVIDER: S-EPMC9729603 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature