Morphometric studies suggest taxonomic changes in a species complex in Chromolaena (Asteraceae, Eupatorieae, Praxelinae)

IF 0.9 4区生物学 Q4 PLANT SCIENCES

Acta Botanica Brasilica Pub Date : 2022-12-19 DOI:10.1590/1677-941x-abb-2022-0126

A. L. Christ, D. D. Saraiva, J. Nakajima, M. Ritter

{"title":"Morphometric studies suggest taxonomic changes in a species complex in Chromolaena (Asteraceae, Eupatorieae, Praxelinae)","authors":"A. L. Christ, D. D. Saraiva, J. Nakajima, M. Ritter","doi":"10.1590/1677-941x-abb-2022-0126","DOIUrl":null,"url":null,"abstract":"The Chromolaena congesta complex (Asteraceae, Eupatorieae) presents a difficult challenge for biodiversity researchers due to the intertwined connections of its species and the difficulty of establishing morphological boundaries. In this study, we aimed to use morphometric analyses to evaluate the delimitation of the taxa belonging to the C. congesta complex, identify informative morphological traits and to understand the identity of several “atypical” specimens morphologically related to the complex. To achieve this, we used cluster and principal component analysis to evaluate 50 morphological traits from a total of 210 specimens throughout the geographic distribution of the species complex. We found support for the recognition of at least six species - Chromolaena ascendens , C. gentianoides , C. hirsuta , C. latisquamulosa , C. rhinanthacea and C. squarrulosa - according to a phenetic species concept and to corroborate the restoration of three species from synonymy. Furthermore, our results provide a morphological recircumscription of C. congesta and C. elliptica and indicate two taxonomic novelties, including a new combination and a new species. Despite the answers provided by morphology, many taxonomic issues remain to be solved, and further studies with other types of evidence should be carried to contribute towards a more stable","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2022-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Botanica Brasilica","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1590/1677-941x-abb-2022-0126","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

The Chromolaena congesta complex (Asteraceae, Eupatorieae) presents a difficult challenge for biodiversity researchers due to the intertwined connections of its species and the difficulty of establishing morphological boundaries. In this study, we aimed to use morphometric analyses to evaluate the delimitation of the taxa belonging to the C. congesta complex, identify informative morphological traits and to understand the identity of several “atypical” specimens morphologically related to the complex. To achieve this, we used cluster and principal component analysis to evaluate 50 morphological traits from a total of 210 specimens throughout the geographic distribution of the species complex. We found support for the recognition of at least six species - Chromolaena ascendens , C. gentianoides , C. hirsuta , C. latisquamulosa , C. rhinanthacea and C. squarrulosa - according to a phenetic species concept and to corroborate the restoration of three species from synonymy. Furthermore, our results provide a morphological recircumscription of C. congesta and C. elliptica and indicate two taxonomic novelties, including a new combination and a new species. Despite the answers provided by morphology, many taxonomic issues remain to be solved, and further studies with other types of evidence should be carried to contribute towards a more stable

查看原文本刊更多论文

形态计量学研究提示了一种杂种的分类学变化(Asteraceae, Eupatorieae, Praxelinae)

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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

期刊介绍： Experimental, theoretical and applied papers on all aspects of plant (including algae) and fungi biology are welcome. The submitted manuscript or its essential content must not have been published previously or be under consideration for publication elsewhere. Contributions should be substantial, written in high-quality English and show general interest. We expect that the submitted manuscript presents a great novelty in Botany, and this should attract a wide audience. Considering this, case studies are only considered if the narrative and implications are provided to be of general interest. Thus, manuscripts that report aspects of local interest are discouraged unless the implications of the findings are wide-reaching. Manuscripts with agronomic subjects are expected to contain a substantial amount of basic plant biology. Please see below some details for specific area.