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Morphological and anatomical evolution of species of Valeriana (Caprifoliaceae) during the uplift of the Andean range
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SYSNO ASEP 0575418 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Morphological and anatomical evolution of species of Valeriana (Caprifoliaceae) during the uplift of the Andean range Author(s) da Silva Cruz, Rafael (BU-J) ORCID, RID
Klimeš, Adam (BU-J) ORCID, RID
Doležal, Jiří (BU-J) RID, ORCID
Sklenář, P. (CZ)
Klimešová, Jitka (BU-J) RID, ORCIDNumber of authors 5 Source Title Botanical Journal of the Linnean Society. - : Oxford University Press - ISSN 0024-4074
Roč. 203, č. 1 (2023), s. 50-66Number of pages 17 s. Language eng - English Country US - United States Keywords Valeriana ; growth forms ; Anatomy ; evolution Subject RIV EF - Botanics OECD category Plant sciences, botany R&D Projects LTAUSA18007 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support BU-J - RVO:67985939 UT WOS 001019658100001 DOI 10.1093/botlinnean/boad011 Annotation Andean species of Valeriana are frequently pointed to as an example of island woodiness, i.e. plants with herbaceous ancestors that usually evolve woodier forms on islands. We investigated this phenomenon through morphoanatomical and phylogenetic analyses. Plants were collected in the Paramos of Ecuador and had their vegetative morphology described. Stems were sectioned for histological analyses. We mapped the morphoanatomical data plus the maximum reported size for these and other species of the genus, on phylogenetic trees reconstructed on the basis of previously published sequences. Bigger than their Holarctic counterparts, the ancestor of the South American Valeriana was likely to have had a maximum size of 132 cm, and then after evolved to bigger and smaller sizes in a pattern similar to Brownian motion, as supported by phylogenetic signal values. We classified the collected plants into six growth forms (rosette herbs, semirosette herbs, elevated rosettes, elevated semirosettes, shrubs, and lianas), that are not directly related to variable levels of woodiness, as pointed out by our histological analyses. However, the production of unlignified parenchyma in the wood is very frequent, except in older regions of shrubs. The ancestor of the South American Valeriana is also very likely to have unlignified parenchyma in its wood. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2024 Electronic address https://doi.org/10.1093/botlinnean/boad011
Number of the records: 1