Phylogenomics resolves the rediscovered Himalayan endemic Brachymeniopsis gymnostoma (Bryophyta, Funariaceae), as a species of Entosthodon , prompting also the transfer of Clavitheca poeltii
Phylogenomics resolves the rediscovered Himalayan endemic Brachymeniopsis gymnostoma (Bryophyta, Funariaceae), as a species of Entosthodon , prompting also the transfer of Clavitheca poeltii
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系统基因组学解析了重新发现的喜马拉雅特有的 Brachymeniopsis gynostoma（苔藓植物，Funariaceae），作为 Entosthodon 的一种，也促进了 Clavitheca poeltii 的转移
DOI：
10.1002/tax.13106
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发表时间：
2023
期刊：
影响因子：
3.4
通讯作者：
Goffinet, Bernard
中科院分区：
文献类型：
--
作者：
Zhang, Li;Zuo, Qin;Ma, Wen‐Zhang;Shevock, James R.;Patel, Nikisha;Johnson, Matthew;Medina, Rafael;Wilding, Nicholas;Goffinet, Bernard
在历史上，有孢子一代的特征为苔藓的系统发育谱和深度提供了系统概念的基础。以简单孢子体结构为特征的分类群是密切相关的，还是从独立的还原中产生的，往往是模棱两可的。系统发育学推断，在具有模式分类的壶状菌科中，孢子体复杂性发生了一些变化，并且主要发生在内生壶状菌-壶状菌复合体中。在这里，我们报告了单特异性的喜马拉雅特有属abachymeniopsisa和clavitheca的重新发现，它们分别在近100年和40年后被描述。该属的特点是，除其他特征外，它们的短孢子体缺乏控制孢子扩散的孢子囊壁齿。系统发育分析表明，裸眼短肌病发生在内齿动物分支中。典型的长外露蒴果的一个属。因此，我们建议将b。裸骨口，内齿齿属，asE。gymnostomuscomb。此外，该属的唯一种Clavitheca poeltii在形态上与toE高度相似。裸骨动物，也应该转移到内齿动物，但保留作为一个独特的分类单元，E。poeltiicomb。11月，直到更多的种群允许测试在尼泊尔和中国种群之间观察到的哥斯达黎加和seta长度差异的稳健性。
Traits of the spore‐bearing generation have historically provided the basis for systematic concepts across the phylogenetic spectrum and depth of mosses. Whether taxa characterized by a simple sporophytic architecture are closely related or emerged from independent reduction is often ambiguous. Phylogenomic inferences in the Funariaceae, which hold the model taxonPhyscomitrium patens, revealed that several such shifts in sporophyte complexity occurred, and mostly within theEntosthodon‐Physcomitriumcomplex. Here, we report the rediscovery of the monospecific, Himalayan endemic generaBrachymeniopsisandClavitheca, after nearly 100 years and 40 years since their respective descriptions. The genera are characterized by, among other traits, their short sporophytes lacking the sporangial peristome teeth controlling spore dispersal. Phylogenomic inferences reveal thatBrachymeniopsis gymnostomaarose within the clade ofEntosthodons.str., a genus with typically long‐exserted capsules. We therefore propose to transferB. gymnostomato the genusEntosthodon, asE. gymnostomuscomb. nov.Furthermore,Clavitheca poeltii, the sole species of the genus, is morphologically highly similar toE. gymnostomus, and should also be transferred toEntosthodon, but is retained as a distinct taxon,E. poeltiicomb. nov., until additional populations allow for testing the robustness of the observed divergence in costa and seta length between the Nepalese and Chinese populations.