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Chromosome numbers in Bolboschoenus (Cyperaceae) correspond to main morphotypes at a worldwide scale

  • Vlasta Jarolímová
  • , Zdenka Hroudová
  • , Mohammad Amini Rad
  • , Jeremy Bruhl
  • , Anne Charpentier
  • , Jindřich Chrtek Jun
  • , Éric Collias
  • , Michal Ducháček
  • , George Ganf
  • , Thomas Gregor
  • , Astrid Grüttner
  • , Eisuke Hayasaka
  • , Zdeněk Kaplan
  • , Jan Kirschner
  • , František Krahulec
  • , Atilla Mesterházy
  • , Lenka Moravcová
  • , David Rosen
  • , Jiří Sádlo
  • , Jan Štěpánek
  • Petr Zákravský, Karol Marhold

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Great progress in cytotaxonomic research during the last decades indicated an importance of relationships between morphological features, geographical distribution of plants, and chromosome counts. This study is aimed to fill the gaps in our knowledge on Bolboschoenus chromosome numbers related to morphological differentiation of plants and their distribution worldwide. We counted gametophytic chromosome numbers in meiotic phase of plants, collected from localities worldwide during the period 1980–2013, and cultivated in an experimental garden in Průhonice. The chromosome numbers of seven species (Bolboschoenus afnis, B. caldwellii, B. grandispicus, B. medianus, B. novae-angliae, B. robustus and B. schmidii) were counted for the first time. All the studied Bolboschoenus taxa were divided into groups according to chromosome numbers, which were found to correspond to morphotypes formerly described. We have improved the taxonomic classification of some species. The relationship between chromosome counts and morphotypes appeared to be identical within some continents, and may indicate parallel evolution within the genus.

    Original languageEnglish
    Article number2
    Pages (from-to)1-20
    JournalPlant Systematics and Evolution
    Volume311
    Early online date14 Dec 2024
    DOIs
    Publication statusPublished - 31 Dec 2025

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