Distribution and Diversity of Orchids—2nd Edition

A special issue of Diversity (ISSN 1424-2818). This special issue belongs to the section "Biogeography and Macroecology".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 1458

Special Issue Editors


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Guest Editor
1. Department of Biodiversity Research, Czechglobe, Academy of Sciences of the Czech Republic, Prokišova 7, 37000 České Budějovice, Czech Republic
2. Institute for Environmental Studies, Faculty of Science, Charles University, Benatska 2, 128 01 Prague 2, Czech Republic
Interests: species diversity; population and metapopulation dynamics; evolution of life histories; landscape connectivity; nature protection; insect pests and their predators; orchids; large mammals
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Institute of Agricultural and Environmental Sciences, Department of Biodiversity and Nature Tourism, Estonian University of Life Sciences, Kreutzwaldi 5, 51006 Tartu, Estonia
Interests: population biology of threatened species; conservation biology; distribution ecology; nature tourism; orchid ecology; plant ecology
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Smithsonian Environmental Research Center, 647 Contees Wharf Rd., Edgewater, MD 20137, USA
Interests: orchid–fungus symbiosis; orchids; plant ecology
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Special Issue Information

Dear Colleagues,

Orchids are disappearing worldwide, mostly due to habitat loss, but other factors like climate change are likely to increase in importance during the 21st century. Thus, one of the most worrying issues is that we still do not know the optimal abiotic and biotic requirements for population persistence of many of the ca. 30,000 species of orchids. On top of that, there are still unclear issues in orchid taxonomy, nomenclature and systematics. This all makes it very difficult to develop effective conservation methods for this endangered plant group.

This Special Issue aims to fill in some of these gaps in our knowledge. To achieve this, we welcome a range of contributions (including original research articles, reviews, perspectives, and opinion pieces) on themes including but not limited to:

  • Orchid species distribution models;
  • Orchid diversity in individual regions/countries;
  • Orchid population dynamics and its effects on orchid diversity;
  • Floristic studies and taxonomic revisions of problematic taxa in orchids;
  • Genetic studies of orchid species used for determination of differences between species.

We kindly invite you to submit a manuscript focused on any of the above topics. If you are interested in this opportunity or have any questions, please do not hesitate to contact us.

Prof. Dr. Pavel Kindlmann
Prof. Dr. Tiiu Kull
Dr. Melissa McCormick
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Diversity is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • orchids
  • species distribution models
  • diversity
  • taxonomic revisions
  • genetic studies

Published Papers (1 paper)

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Research

20 pages, 11949 KiB  
Article
Advances in the Study of Orchidinae Subtribe (Orchidaceae) Species with 40,42-Chromosomes in the Mediterranean Region
by Alessio Turco, Robert Philipp Wagensommer, Pietro Medagli, Antonella Albano and Saverio D’Emerico
Diversity 2024, 16(1), 41; https://doi.org/10.3390/d16010041 - 09 Jan 2024
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Abstract
This study presents an updated analysis of cytogenetic data for several species within the 40,42-chromosome genera of the subtribe Orchidinae. The research includes insights into the distribution of heterochromatin obtained using C-banding and fluorochrome techniques. Our investigation confirmed variation in the distribution [...] Read more.
This study presents an updated analysis of cytogenetic data for several species within the 40,42-chromosome genera of the subtribe Orchidinae. The research includes insights into the distribution of heterochromatin obtained using C-banding and fluorochrome techniques. Our investigation confirmed variation in the distribution of heterochromatin and repetitive DNA sequences among species pertaining to Neotinea s.l. and Orchis s.str. These variations also potentially contribute to the diversification of these species. Cytogenetic analyses of the Neotinea group demonstrated that both H33258 and DAPI staining result in blocks of fluorescent regions on numerous chromosomes. Particular attention was paid to the cytological composition of the polyploid Neotinea commutata, focusing on its potential origin. Based on the karyological results acquired, a hypothesis concerning the origin of N. commutata is proposed. The most noteworthy revelations regard the O. mascula complex. In these species, the telomeric areas of all chromosome sets display extensive heterochromatin. Fluorochrome staining revealed telomeric blocks on many chromosomes that were not seen with Giemsa staining. This highlighted a distinct feature of O. mascula, where particularly large C-bands surrounding the centromeric regions of multiple chromosomes were found. However, in O. mascula, O. provincialis, O. pauciflora, and O. patens, C+ chromatin may not show a significant response to fluorochrome Hoechst or DAPI+ staining. The unique cytomorphological arrangement observed in the O. mascula species, unlike other members of the O. mascula complex, suggest epigenetic phenomena. Additional data are presented for the genera Dactylorhiza and Gymnadenia. A deeper understanding of the diversity of chromosomal structures among these orchids promises to shed light on the mechanisms underlying speciation, adaptation, and the remarkable diversity characteristic of the Orchidaceae family. Full article
(This article belongs to the Special Issue Distribution and Diversity of Orchids—2nd Edition)
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