Dactylorhiza maculata agg. (Orchidaceae) in Central Europe: Intricate patterns in morphological variability, cytotype diversity and ecology support the single-species concept

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00094862%3A_____%2F24%3A10000345" target="_blank" >RIV/00094862:_____/24:10000345 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/23:73621012

Result on the web

<a href="https://link.springer.com/article/10.1007/s12224-024-09441-0" target="_blank" >https://link.springer.com/article/10.1007/s12224-024-09441-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12224-024-09441-0" target="_blank" >10.1007/s12224-024-09441-0</a>

Result language

angličtina

Original language name

Dactylorhiza maculata agg. (Orchidaceae) in Central Europe: Intricate patterns in morphological variability, cytotype diversity and ecology support the single-species concept

Original language description

Effective protection of endangered species is often limited by taxonomic discrepancies across state borders. This is also the case of the Dactylorhiza maculata agg. in Central Europe, where one to three species and several infraspecific taxa are recognized in various countries. Based on an extensive analysis of morphological variation, ploidy levels, environmental traits and habitats of 64 populations in Central Europe and adjacent regions, we aimed to propose a unified taxonomic concept applicable throughout the study area. Multivariate analysis of morphological traits revealed continuous variation at the individual level and only minor differences between particular clusters of populations. Four DNA-ploidy levels were detected using flow cytometry. Diploids (2n = 40) and tetraploids (2n = 80) were the most abundant and usually formed single-cytotype populations whereas DNA-triploids and DNA-hexaploids occurred only sporadically as minority cytotypes. The inferred patterns of morphological and ploidy variation were not congruent with traditional taxonomic treatment regarding diploid D. fuchsii and tetraploid D. maculata as two species with several infraspecific taxa. Instead, all taxa analysed in the current study are best treated at the subspecies level within D. maculata s. lat. due to somewhat continuous morphological variation between morphotypes. A total of eight D. maculata subspecies may be recognized in Central Europe, of which one is newly described here as D. maculata subsp. arcana, subsp. nov. Some nomenclatural riddles have been resolved, and the threat status of the recognized taxa is discussed.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Folia Geobotanica

ISSN

1211-9520

e-ISSN

1874-9348

Volume of the periodical

58

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

38

Pages from-to

151-188

UT code for WoS article

001173128400001

EID of the result in the Scopus database

2-s2.0-85186206227