Maternal Inheritance of U's Triangle and Evolutionary Process of Brassica Mitochondrial Genomes.

ABSTRACT: The sequences and genomic structures of plant mitochondrial (mt) genomes provide unique material for phylogenetic studies. The nature of uniparental inheritance renders an advantage when utilizing mt genomes for determining the parental sources of hybridized taxa. In this study, a concatenated matrix of mt genes was used to infer the phylogenetic relationships of six cultivated Brassica taxa and explore the maternal origins of three allotetraploids. The well-resolved sister relationships between two pairs of diploid and allotetraploid taxa suggest that Brassica carinata (car) possessed a maternal origin from Brassica nigra, while Brassica juncea (jun) was maternally derived from Brassica rapa (cam). Another allotetraploid taxon, Br

SUBMITTER: Xue JY 

PROVIDER: S-EPMC7303332 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature