Angiosperms, also known as flowering plants, have about 300,000 species.
In recent years, great progress has been made in the evolution of angiosperms, but the phylogenetic relationships among some major branches are still unclear, which greatly hinders people's full understanding of their evolution and early diversification
Correspondent October 31 from China Kexue Yuan Kunming Institute of Botany was informed that recently, scientists and foreign collaboration, build a family level angiosperm most complete "Tree of Life", provides a solid foundation for the future evolution of angiosperms
Academy of Sciences Rebuilding the angiosperm "tree of life" is a hot issue
Rebuilding the angiosperm "tree of life" is a hot issue "Angiosperms are a major part of the global terrestrial ecosystem
Academy of Sciences In the past 30 years, with the rise of branch systematics and molecular systematics, the study of angiosperm phylogeny has made continuous progress.
"For decades, the phylogenetic relationship of angiosperm family level and above has only been partially resolved
Research covers all recognized representatives of the angiosperm family
Research covers all recognized representatives of the angiosperm family The research team of Kunming Institute of Botany, led by researcher Li Dezhu, has been committed to the study of angiosperm phylogeny for many years
Following the publication of important results in the study of the origin and early evolution of angiosperms in Nature Plants in 2019, the team conducted a phylogenetic study of the most complete sampling of angiosperms at the family level
"The study took 8 orders, 12 families, 77 genera and 162 species of gymnosperms as the exogroups, and selected 416 families of angiosperms recognized by the fourth edition of the order-level system regardless of class or subclass, and 17 families recognized by the angiosperm phylogeny website.
On the basis of the 2019 angiosperm chloroplast phylogeny tree, the study added 73 new families of chloroplast genome data, and constructed the angiosperm phylogenetic tree version 2.
An in-depth study of the eight main branches of angiosperms, including the basal Cinnamomum, Nymphaea, and Magnolias, and the five branch systems of the core angiosperms indicate that the core angiosperms may undergo rapid radiation evolution in the early stages of differentiation
"The new research has clearly clarified many deep phylogenetic relationships, especially those at and above the family level
On October 29, the research results were published online in the important international biology journal "BMC Biology"
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