当前位置: X-MOL 学术Bot. J. Linn. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Phylogenetic analysis of Microlicieae (Melastomataceae), with emphasis on the re-circumscription of the large genus Microlicia
Botanical Journal of the Linnean Society ( IF 2.3 ) Pub Date : 2021-01-15 , DOI: 10.1093/botlinnean/boab011
Ana Flávia Alves Versiane 1 , Rosana Romero 2 , Marcelo Reginato 3 , Cassiano A Dorneles Welker 2 , Fabián A Michelangeli 4 , Renato Goldenberg 5
Affiliation  

Microlicieae are a monophyletic tribe comprising seven genera: Chaetostoma, Lavoisiera, Microlicia s.s., Poteranthera, Rhynchanthera, Stenodon and Trembleya. Microlicia s.s. includes 172 species predominantly distributed in the campo rupestre of Brazil. Its delimitation is complex because the generic boundaries, mostly with Lavoisiera and Trembleya, are unclear. Here we present a phylogenetic analysis for Microlicieae focusing on Microlicia s.s., with the specific goals: (1) to test the monophyly of Microlicia s.s.; (2) to investigate morphological characters that could help in circumscribing clades and/or genera in the tribe and (3) to provide an appropriate classification for Microlicia s.s. and related genera. This study was based on plastid (atpF-atpH, trnS-trnG), nuclear ribosomal (nrITS, nrETS) and nuclear low-copy (waxy) DNA sequences, through maximum likelihood and Bayesian inference analyses. The history of 12 morphological characters was estimated based on ancestral state reconstruction analyses. Our analysis shows Microlicia s.s. to be paraphyletic with Chaetostoma, Lavoisiera, Stenodon and Trembleya nested in it. Most characters traditionally used to diagnose these genera are homoplastic. We propose the inclusion of these four genera in a broadly circumscribed Microlicia s.l., and provide new combinations and names for their species. As here defined, Microlicieae has three genera, Rhynchanthera, Poteranthera and Microlicia s.l., Microlicia s.l. being the fourth richest genus in Melastomataceae with c. 245 species.

中文翻译:

Microlicieae (Melastomataceae) 的系统发育分析,重点是大属 Microlicia 的再限制

Microlicieae 是一个单系部落,包括七个属:Chaetostoma、Lavoisiera、Microlicia ss、Poteranthera、Rhynchanthera、Stenodon 和 Trembleya。Microlicia ss 包括 172 种,主要分布在巴西的 campo rupestre。它的划界很复杂,因为一般边界,主要是拉瓦锡耶拉和特伦布雷亚,是不清楚的。在这里,我们提出了以 Microlicia ss 为重点的 Microliciaae 的系统发育分析,其具体目标是:(1)测试 Microlicia ss 的单系性;(2) 研究有助于在部落中划定进化枝和/或属的形态特征,以及 (3) 为 Microlicia ss 和相关属提供适当的分类。本研究基于质体 (atpF-atpH, trnS-trnG)、核核糖体 (nrITS, nrETS) 和核低拷贝 (waxy) DNA 序列,通过最大似然和贝叶斯推理分析。基于祖先状态重建分析估计了12个形态特征的历史。我们的分析表明 Microlicia ss 与 Chaetostoma、Lavoisiera、Stenodon 和 Trembleya 嵌套在其中。传统上用于诊断这些属的大多数特征都是同质的。我们建议将这四个属纳入范围广泛的 Microlicia sl 中,并为其物种提供新的组合和名称。如这里所定义的,Microlicieae 具有三个属,Rhynchanthera、Poteranthera 和 Microlicia sl,Microlicia sl 是 Melastomataceae 中第四个最丰富的属,其中 c. 245种。我们的分析表明 Microlicia ss 与 Chaetostoma、Lavoisiera、Stenodon 和 Trembleya 嵌套在其中。传统上用于诊断这些属的大多数特征都是同质的。我们建议将这四个属纳入范围广泛的 Microlicia sl 中,并为其物种提供新的组合和名称。如这里所定义的,Microlicieae 具有三个属,Rhynchanthera、Poteranthera 和 Microlicia sl,Microlicia sl 是 Melastomataceae 中第四个最丰富的属,其中 c. 245种。我们的分析表明 Microlicia ss 与 Chaetostoma、Lavoisiera、Stenodon 和 Trembleya 嵌套在其中。传统上用于诊断这些属的大多数特征都是同质的。我们建议将这四个属纳入范围广泛的 Microlicia sl 中,并为其物种提供新的组合和名称。如这里所定义的,Microlicieae 具有三个属,Rhynchanthera、Poteranthera 和 Microlicia sl,Microlicia sl 是 Melastomataceae 中第四个最丰富的属,其中 c. 245种。并为其物种提供新的组合和名称。如这里所定义的,Microlicieae 具有三个属,Rhynchanthera、Poteranthera 和 Microlicia sl,Microlicia sl 是 Melastomataceae 中第四个最丰富的属,其中 c. 245种。并为其物种提供新的组合和名称。如这里所定义的,Microlicieae 具有三个属,Rhynchanthera、Poteranthera 和 Microlicia sl,Microlicia sl 是 Melastomataceae 中第四个最丰富的属,其中 c. 245种。
更新日期:2021-01-15
down
wechat
bug