Is Persea (Lauraceae) monophyletic? Evidence from nuclear ribosomal ITS sequences
Is Persea (Lauraceae) monophyletic? Evidence from nuclear ribosomal ITS sequences
复制标题
Persea（樟科）是单系吗？
DOI：
10.1002/tax.584009
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发表时间：
2009-11-01
期刊：
影响因子：
3.4
通讯作者：
Li, Hsi-wen
中科院分区：
文献类型：
--
作者：
Rohwer, Jens G.;Li, Jie;Li, Hsi-wen
樟科（Lauraceae）属的划分一直是有争议的。在试图解决这个组内的系统发育线，我们分析了61种的波斯组（樟科）和30个樟科其他物种的ITS序列。几个传统的属或亚属形成了支持良好的类群，即，波斯亚属Eriodaphne，Machilus，Persea subg.波斯，阿勒赛达芬，包括底哈西亚。包括的种形成两个分支，这是未解决的Alseodaphne。然而，Persea subg. Eriodaphne（与Macaronesian Apollonias barbujana一起）形成了Persea组内未解决的基底分异的分支之一，而Persea subg.波斯是一个亚洲分支的成员，包括Alseodaphne和Phoebe。这表明，波斯，作为目前的限制，是不是单系。Macaronesian Persea indica的亲缘关系显然是美洲而不是亚洲。
The delimitation of genera within the Persea group (Lauraceae) has always been controversial. In an attempt to resolve the phylogenetic lines within this group, we analyzed ITS sequences of 61 species of the Persea group (Lauraceae) and 30 other species of Lauraceae. Several of the traditional genera or subgenera form well-supported groups, viz., Persea subg. Eriodaphne, Machilus, Persea subg. Persea, and Alseodaphne including Dehaasia. The included species of Phoebe form two clades that are unresolved with respect to Alseodaphne. However, Persea subg. Eriodaphne (together with the Macaronesian Apollonias barbujana) forms one of the clades of an unresolved basal trichotomy within the Persea group, whereas Persea subg. Persea is well supported as member of an otherwise Asian clade including Alseodaphne and Phoebe. This indicates that Persea, as currently circumscribed, is not monophyletic. The affinities of the Macaronesian Persea indica are clearly American rather than Asian.