Neither Phoebe nor Cinnamomum – the tetrasporangiate species of Aiouea (Lauraceae)
Neither Phoebe nor Cinnamomum – the tetrasporangiate species of Aiouea (Lauraceae)
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菲比和肉桂都不是 - Aiouea（樟科）的四孢子囊物种
作者：
R;i Rohde;Barbara Rudolph;Kristina Ruthe;Francisco G. Lorea-Hernández;Pedro Luis Rodrigues de Moraes;Jie Li;Jens G. Rohwer
肉桂属是樟科中最大的属之一，包括从热带到温带亚洲和从热带到亚热带美洲的物种。然而，以往的研究表明，肉桂可能不是单系在其目前的界限。因此，我们重新调查了属和可能的亲属与增加分类群样本，特别是新热带区种。我们的研究结果，基于核ITS区和叶绿体间隔子psbA-trnH和trnG-trnS的序列，表明新热带区的肉桂属物种确实不形成一个单系群与古热带区的物种。相反，美洲种形成了一个分支，其中大多数新热带属Aiouea的物种都嵌套在几个亚分支中。根据ITS数据的Aiouea/Cinnamomum分支是姐妹同样占主导地位的新热带区Ocotea复杂，而不是两个古热带区Cinnamomum分支。因此，肉桂不能维持其目前的界限。作为C型。verum，是来自亚洲，新热带种需要放在一个不同的属。我们决定将它们转移到Aiouea这里，因为这是Aiouea/Cinnamomum分支中最古老的属名，并且将Aiouea与新热带区Cinnamomum分开的唯一特征是每个花药的花粉囊数量（di- vs. tetrasporangiate），已知这一特征在其他几个属中也是可变的。这种转移需要42个新组合和两个新名称。此外，在未发表的博士论文中描述了6个物种。其中一位作者（FLH）的论文在这里的Aiouea得到了验证，并且Mocinnodaphne属的唯一物种也转移到了Aiouea。
Cinnamomum is among the largest genera of the Lauraceae, including species from tropical to temperate Asia and from tropical to subtropical America. However, previous studies indicated that Cinnamomum might not be monophyletic in its current circumscription. We therefore re-investigated the genus and possible relatives with an increased taxon sample, particularly of the Neotropical species. Our results, based on sequences of the nuclear ITS region and the chloroplast spacers psbA-trnH and trnG-trnS, show that the Neotropical Cinnamomum species indeed do not form a monophyletic group with the Paleotropical species. Instead, the American species form a clade in which most species of the Neotropical genus Aiouea are nested within several subclades. According to the ITS data the Aiouea/Cinnamomum clade is sister to the likewise predominantly Neotropical Ocotea complex, rather than the two Paleotropical Cinnamomum clades. Therefore, Cinnamomum cannot be upheld in its cur- rent circumscription. As the type C. verum, is from Asia, the Neotropical species need to be placed in a different genus. We decided to transfer them to Aiouea here, because this is the oldest generic name in the Aiouea/Cinnamomum clade, and the only character separating Aiouea from Neotropical Cinnamomum is the number of pollen sacs per anther (di- vs. tetrasporangiate), a feature that is known to be variable within several other genera as well. This transfer requires 42 new combinations and two nomina nova. In addition, six species described in the unpublished Ph.D. thesis of one of the authors (FLH) are validated in Aiouea here, and the only species of the genus Mocinnodaphne is transferred to Aiouea as well.
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影响因子：
4.1
作者：
C. Klak;P. Bruyns;P. Hanáček
通讯作者：
C. Klak;P. Bruyns;P. Hanáček
DOI：
--
发表时间：
--
期刊：
--
影响因子：
--
作者：
A. Grisebach;A. Gray;Charles Wright
通讯作者：
A. Grisebach;A. Gray;Charles Wright
DOI：
--
发表时间：
2012
期刊：
--
影响因子：
--
作者：
J. McNeill;F. Barrie;W. R. Buck;Vincent Demoulin;Werner Greuter;D. L. Hawksworth;P. Herendeen
通讯作者：
J. McNeill;F. Barrie;W. R. Buck;Vincent Demoulin;Werner Greuter;D. L. Hawksworth;P. Herendeen
影响因子：
3
作者：
Li, Lang;Li, Jie;Li, Hsi-Wen
通讯作者：
Li, Hsi-Wen
DOI：
--
发表时间：
1990-01
期刊：
Fieldiana Botany
影响因子：
--
作者：
W. Burger;H. Werff
通讯作者：
W. Burger;H. Werff