Comparative Analysis of Chloroplast Genomes Reveals Molecular Evolution and Phylogenetic Relationships in Fraxinus (Fraxinus mandshurica)

Description

Wenxuan Liu, Jiawei Wu, and three colleagues read the full chloroplast genome of the Manchurian ash and place the tree among its relatives, in a paper published in two thousand twenty-six. This ash is a valuable hardwood of Northeast Asia, prized ecologically and commercially, but its genomic resources were thin.

Combining long and short sequencing reads, they assembled a chloroplast genome of about one hundred fifty-six thousand bases in the classic four-part structure. It holds one hundred fourteen unique genes, including eighty that code for proteins, plus the usual transfer and ribosomal RNA genes. Repetitive stretches were dominated by single-letter runs of A and T. Comparing fifty-three chloroplast genomes across the olive family confirmed the family as one lineage and set the Manchurian ash beside the North American black ash as its closest sampled relative. Chloroplast genomes are workhorse evidence for plant evolution and identification.

Catalog record

Source: https://europepmc.org/articles/PMC13566462