Comparative plastomic analysis of cultivated Dioscorea polystachya and its close relatives provides insights on the inter- and intraspecific phylogenies and potential wild origins of domestication.

ABSTRACT:

Background

Dioscorea polystachya and its closely related species are original plants of the tuber crop "yam", which had been intensively use for medicinal and food purposes and widely cultivated in northern China and its surrounding areas with a long history. Many cultivars of these species are often confused with one another because of similar tuber morphology, however, conventional DNA barcoding faces practical limitations restricting the method to effectively identify closely related species. In addition, phylogenetic relationships among various cultivar groups of Chinese yam (D. polystachya) remains unclear. To solve these problems, genomic DNAs of 15 Dioscorea samples were sequenced to assemble and annotate chloroplast genomes, which were used for analyzing their structural ch

SUBMITTER: Feng W 

PROVIDER: S-EPMC11670431 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature