Comparative Analysis of Tylosema esculentum Mitochondrial DNA Revealed Two Distinct Genome Structures.

ABSTRACT: Tylosema esculentum, commonly known as the marama bean, is an underutilized legume with nutritious seeds, holding potential to enhance food security in southern Africa due to its resilience to prolonged drought and heat. To promote the selection of this agronomically valuable germplasm, this study assembled and compared the mitogenomes of 84 marama individuals, identifying variations in genome structure, single-nucleotide polymorphisms (SNPs), insertions/deletions (indels), heteroplasmy, and horizontal transfer. Two distinct germplasms were identified, and a novel mitogenome structure consisting of three circular molecules and one long linear chromosome was discovered. The structural variation led to an increased copy number of specific genes, nad5, nad9, rrnS,

SUBMITTER: Li J 

PROVIDER: S-EPMC10525999 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature