Phylogenetic relationships in the Hamamelidaceae:: evidence from the nucleotide sequences of the plastid gene matK
Phylogenetic relationships in the Hamamelidaceae:: evidence from the nucleotide sequences of the plastid gene matK
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DOI：
10.1007/bf01089228
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发表时间：
1999-01-01
影响因子：
1.9
通讯作者：
Klein, AS
中科院分区：
文献类型：
--
作者：
Li, JH;Bogle, AL;Klein, AS
金缕梅科是连接蔷薇科和“低等”金缕梅科的基础元素的一个科，因此更好地了解该科的系统发育对于阐明双子叶植物多样化的进化模式非常重要。然而，金缕梅科的亚科和部落关系一直存在争议。叶绿体基因 matK 的核苷酸序列用于研究该科的属间关系。在使用简约分析构建的系统发育树中，包含 Altingia 和 Liqui dambar (Altingioideae) 的进化枝是包含所有其他金缕梅科的进化枝的姐妹。 Exbucklandia 和 Rhodoleia 形成一个分支，表明两个属之间的密切关系。双花属是单系金缕梅亚科的姐妹。 Disanthus、Mytilaria 和 Exbucklandia 相对于金缕梅亚科的并系排列并不支持这些属合并在一个亚科中。在金缕梅亚科中，matK 系统发育支持了几个先前认识的经过修改的类群的单系，包括 Eustigmateae 族（包括 Molinadendron）、Fothergilleae（不包括 Molinadendron 和 Matudaea）和 Dicoryphinae 亚族。然而，传统意义上的金缕梅科是多系的。 Apetaly 在金缕梅亚科中独立进化了 3 次。
The Hamamelidaceae is a family that bridges the basal elements of the Rosidae and the "lower" Hamamelidae, thus a better understanding of the phylogeny of the family is important for clarifying evolutionary patterns in the diversification of eudicots. However, subfamilial as well as tribal relationships in the Hamamelidaceae have been controversial. Nucleotide sequences of the chloroplast gene matK were used to study the intergeneric relationships of the family. In the phylogenetic trees, constructed using parsimony analysis, the clade containing Altingia and Liqui dambar (Altingioideae) is sister to a clade that includes all other Hamamelidaceae. Exbucklandia and Rhodoleia form a clads, suggesting a close relationship between the two genera. Disanthus is sister to the monophyletic Hamamelidoideae. The paraphyletic arrangement of Disanthus, Mytilaria and Exbucklandia with respect to the Hamamelidoideae does not support the combination of these genera in one subfamily. In the Hamamelidoideae, the matK phylogeny supports the monophyly of several previously recognized groups with modifications, including the tribes Eustigmateae (incl. Molinadendron), Fothergilleae (excl. Molinadendron and Matudaea), and the subtribe Dicoryphinae. However, the Hamamelideae as traditionally circumscribed is polyphyletic. Apetaly has evolved three times independently in the Hamamelidoideae.