木兰藤科系统位置评述

A Review on the Phylogenetics of Austrobaileyaceae

木兰藤科(Austrobaileyaceae)含1属2种,是系统学上最孤立的科之一。其花粉类似于最古老的被子植物化石之一:晚白垩世的棒纹粉。最新的分子系统发育研究结果表明,木兰藤科是现存被子植物的基部类群之一,其对于被子植物的起源与早期进化的研究具有重要价值。被子植物(有花植物)的起源和辐射一直是植物学家关注的热点。有关木兰藤科的系统位置一直存在争议。本文对该科系统位置的研究历史与现状进行评述。

The monotypic family Austrobaileyaceae with 2 species, is one of the systematically most isolated families. The pollen grains resemble to a remarkable degree Clavatipollenites of the Lower Cretaceous period, one of the oldest angiosperm fossils. Recent phylogenetic analyses of multiple molecular data sets indicate that Austrobaileyaceae are some of the basal taxa among the extant angiosperms, which implies their important value for study of the origin and early evolution of angiosperms. The origin and radiation of angiosperms （flowering plants） has long been important issues attracting botanists. The systematic position of Austrobaileyaceae is controversial. This paper reviews the research history and recent advances related to this family.