Key Laboratory of Biodiversity and Biogeography, Plant Germplasm and Genomics Center, Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204, China.
Mol Phylogenet Evol. 2011 Jul;60(1):21-8. doi: 10.1016/j.ympev.2011.04.008. Epub 2011 Apr 22.
Despite many attempts to resolve evolutionary relationships among the major clades of Rosales, some nodes have been extremely problematic and have remained unresolved. In this study, we use two nuclear and 10 plastid loci to infer phylogenetic relationships among all nine families of Rosales. Rosales were strongly supported as monophyletic; within Rosales all family relationships are well-supported with Rosaceae sister to all other members of the order. Remaining Rosales can be divided into two subclades: (1) Ulmaceae are sister to Cannabaceae plus (Urticaceae+Moraceae); (2) Rhamnaceae are sister to Elaeagnaceae plus (Barbeyaceae+Dirachmaceae). One noteworthy result is that we recover the first strong support for a sister relationship between the enigmatic Dirachmaceae and Barbeyaceae. These two small families have distinct morphologies and potential synapomorphies remain unclear. Future studies should try to identify nonDNA synapomorphies uniting Barbeyaceae with Dirachmaceae.
尽管人们多次试图解决蔷薇目中主要分支的进化关系，但有些节点一直存在问题，尚未解决。在这项研究中，我们使用两个核和 10 个质体基因座来推断蔷薇目的所有九个科之间的系统发育关系。蔷薇目被强烈支持为单系群；在蔷薇目中，所有的科间关系都得到了很好的支持，蔷薇科与该目中的其他成员是姐妹群关系。其余的蔷薇目可以分为两个亚分支：（1）榆科与大麻科加荨麻科（桑科+榆科）为姐妹群关系；（2）鼠李科与胡颓子科加（朴科+伯乐树科）为姐妹群关系。一个值得注意的结果是，我们首次强烈支持神秘的伯乐树科和朴科之间存在姐妹关系。这两个小科具有明显不同的形态，潜在的同源特征仍不清楚。未来的研究应试图确定将朴科与伯乐树科联合起来的非 DNA 同源特征。
