An integrative study of Pannaria hookeri (Ascomycota lichenized) from Argentina and the update of the taxon circumscription based on specimens from the Northern and Southern Hemispheres

IF 0.9 4区生物学 Q4 PLANT SCIENCES

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI:10.1590/0102-33062021abb0357

M. J. Kitaura, M. Scur, A. Spielmann, A. Lorenz

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引用次数: 0

Abstract

Pannaria hookeri (Borrer ex Sm.) Nyl. is reported as a bipolar cyanolichen that occurs in more than twenty countries in both Hemispheres. In the Northern Hemisphere, a minor variation is attributed to the species, whereas larger morphological and chemical variations have been reported in specimens from the Southern Hemisphere. Six P. hookeri DNA sequences are available in GenBank, and only one (from Australia) is associated with a published morphological description. In this study, we performed a preliminary phylogenetic analysis including seven nuITS and mtSSU sequences from eight specimens collected in south Argentina. In addition, we provide an update of the taxon circumscription based on 50 specimens from 13 countries. Here, the molecular analyses revealed a well-supported monophyletic group formed by the P. hookeri sequences from Argentina, Australia, Norway and USA (Alaska). Regarding the morphological and anatomical characteristics, the Southern Hemisphere specimens did not present the historical reported variations, resulting in the proposition of a concise species description that accomplishes most of P. hookeri known geographical distribution.

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阿根廷地衣子囊菌属(Pannaria hookeri)的综合研究及基于南北半球标本的分类群划分更新

帕纳利亚·胡克里(Borrer ex Sm.)Nyl。据报道，它是一种双相蓝藻，在两个半球的20多个国家都有发生。在北半球，该物种的变异较小，而在南半球的标本中报告了较大的形态和化学变异。在GenBank中有6个P. hookeri DNA序列，只有一个(来自澳大利亚)与已发表的形态描述有关。在这项研究中，我们对阿根廷南部采集的8个标本进行了初步的系统发育分析，包括7个nuITS和mtSSU序列。此外，我们还对来自13个国家的50个标本进行了分类群划分的更新。在这里，分子分析显示了一个由阿根廷、澳大利亚、挪威和美国(阿拉斯加)的P. hookeri序列形成的良好支持的单系群。在形态学和解剖学特征方面，南半球标本没有呈现历史报道的变异，因此提出了一个简明的物种描述，完成了大部分已知的hookeri地理分布。

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来源期刊

Acta Botanica Brasilica PLANT SCIENCES-

CiteScore

2.30

自引率

9.10%

发文量

审稿时长

6-12 weeks

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