干旱区生态环境知识资源中心(Arid): Revisiting Metternichia (Solanaceae) Through an Integrative Approach: A Monotypic Genus?

Arid

DOI	10.1600/036364423X16936046516363
	Revisiting Metternichia (Solanaceae) Through an Integrative Approach: A Monotypic Genus?
	de Souza, Leonardo da Silveira; Andrade, Bianca Ott; Radaeski, Jefferson Nunes; Bauermann, Soraia Girardi; Stehmann, Joao Renato
通讯作者	de Souza, LD
来源期刊	SYSTEMATIC BOTANY
ISSN	0363-6445
EISSN	1548-2324
出版年	2023
卷号	48 期号:3 页码:419-434
英文摘要	Improving species delimitation and knowledge on species complexes is crucial for many areas of study in Biology, especially conservation. Integrative taxonomy contributes to this topic by using different approaches to better delineate taxonomic boundaries. Metternichia (Solanaceae), historically a monospecific genus, has a geographic range that comprises contrasting environments. Metternichia principis was described as having two varieties: the typical variety, found in the humid forests of eastern Brazil (Atlantic Forest region), and M. principis var. macrocalyx, which presents a larger calyx and inhabits mostly semi-arid areas (Caatinga region). In this study, we tested the validity of such groups by integrating environmental, phenological, morphometric, and palynological data; applying uni- and multivariate tests; and evaluating the conservation status of each taxon. Our results support the recognition of two morphological groups within Metternichia, largely in agreement with the original circumscription of the varieties. Multivariate analyses clearly indicate different ecological niches, with each taxon inhabiting environments with distinct mean annual precipitation and temperature. Phenological data show some differences between the varieties regarding months with the highest number of flowering and fruiting records. In general, M. principis var. macrocalyx presents larger flower and pollen characters, and smaller fruit characters compared to the typical variety. Based on these findings, we elevate the variety to the status of species, as the new combination Metternichia macrocalyx. Following IUCN guidelines, both taxa are here preliminarily considered endangered (EN).
英文关键词	Atlantic Forest Caatinga conservation ecological analysis morphometrics palynology species complex
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001091765500007
WOS关键词	SPECIES COMPLEXES ; ATLANTIC FOREST ; CONSERVATION ; DELIMITATION ; PHYLOGENY ; TAXONOMY ; MORPHOMETRICS ; RESOLUTION ; DIVERSITY ; EVOLUTION
WOS类目	Plant Sciences ; Evolutionary Biology
WOS研究方向	Plant Sciences ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398883
推荐引用方式 GB/T 7714	de Souza, Leonardo da Silveira,Andrade, Bianca Ott,Radaeski, Jefferson Nunes,et al. Revisiting Metternichia (Solanaceae) Through an Integrative Approach: A Monotypic Genus?[J],2023,48(3):419-434.
APA	de Souza, Leonardo da Silveira,Andrade, Bianca Ott,Radaeski, Jefferson Nunes,Bauermann, Soraia Girardi,&Stehmann, Joao Renato.(2023).Revisiting Metternichia (Solanaceae) Through an Integrative Approach: A Monotypic Genus?.SYSTEMATIC BOTANY,48(3),419-434.
MLA	de Souza, Leonardo da Silveira,et al."Revisiting Metternichia (Solanaceae) Through an Integrative Approach: A Monotypic Genus?".SYSTEMATIC BOTANY 48.3(2023):419-434.