坦桑尼亚、圣多美和普林西比果胶酶聚集体的分子、形态和化学变化

IF 1.6 4区生物学 Q4 MYCOLOGY

Lichenologist Pub Date : 2022-09-01 DOI:10.1017/S0024282922000251

Stella G. Temu, P. Clerc, M. R. Nadel, L. Tibell, D. Tibuhwa, Sanja Tibell

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引用次数: 0

摘要

摘要本研究使用了42个标本，其中22个来自坦桑尼亚，20个来自圣多美和普林西比，研究了果胶酶集料的分子、化学和形态变化。共产生31个序列（13个ITS、13个nuLSU和5个RPB1）。结果显示在两个系统发生学中：首先是梳状藻集合体的三个标记“主干”系统发生学，其中六个不同的、得到有力支持的子带表明数据集中存在相当大的遗传变异；第二，具有47个末端的ITS系统发育以及形态学和化学数据的图谱。在两个系统发育中都发现了几个得到充分支持的单系分支，这些分支很可能代表了复合物中的单独物种，在这里被称为梳状聚集体。观察到三种以轴色素沉着为特征的形态类型和四种以分枝形状为特征的形态学类型。观察到6种化学型。

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Molecular, morphological and chemical variation of the Usnea pectinata aggregate from Tanzania, São Tomé and Príncipe

Abstract This study investigated the molecular, chemical and morphological variation in the Usnea pectinata aggregate using 42 specimens, 22 from Tanzania and 20 from São Tomé and Príncipe. A total of 31 sequences (13 ITS, 13 nuLSU and 5 RPB1) were generated. The results are presented in two phylogenies: first a three-markers ‘backbone’ phylogeny for the U. pectinata aggregate, where six distinct, strongly supported subclades indicate considerable genetic variation in the dataset; and second, an ITS phylogeny with 47 terminals along with a mapping of morphological and chemistry data. Several well-supported monophyletic clades were recovered in both phylogenies and these may well represent separate species in the complex referred to here as the U. pectinata aggregate. Three morphotypes characterized by axis pigmentation and four by branch shape were noted. Six chemotypes were observed.

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来源期刊

Lichenologist 生物-真菌学

CiteScore

2.90

自引率

14.30%

发文量

审稿时长

6.0 months

期刊介绍： The Lichenologist is the premier scientific journal devoted exclusively to the study of lichens worldwide. As the leading forum for the dissemination of new concepts and topical reviews, The Lichenologist reaches more scientists concerned with the study of lichens and lichen symbionts than any other single journal. All aspects of lichenology are considered including systematics and phylogenetics; molecular biology; ultrastructure, anatomy and morphology; secondary chemistry, effects of pollutants and use as bioindicators; biogeography. In addition to standard length research papers, the journal also publishes Short Communications and Book Reviews. A monthly issue may occasionally be devoted to papers deriving from a symposium.