More molecular evidence for interspecific relationships in Liquidambar (Hamamelidaceae)

摘要

Phylogenetic analysis was carried out on the basis of the nucleotide sequences of the plastid gene matK of L. orientalis (Western Asia), L. styraciflua (North and Central America) and L. acalycina and L. formosana from southeastern Asia. It is confirmed that L. orientalis is more closely related to L. styraciflua than to the southeast Asian species. In addition, it is suggested that the introns of the GBSS gene provide another informative nuclear marker for determining phylogenetic relationships between closely related species.