0
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Taxonomic notes on Scutellaria taipeiensis (Lamiaceae) from morphological and molecular data

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Abstract

          The genus Scutellaria comprises eight species distributed from 50 to 2000 m in Taiwan. Amongst them, S. barbata and S. taipeiensis are very similar on the basis of morphological and plastid DNA sequence information. Therefore, a comprehensive study of the taxonomic status of S. taipeiensis is necessary. We reviewed the herbarium sheets, related literature and protologues and compared morphologies of these two species, as well as their phylogenetic relationships. All evidence, including the diagnostic characters between S. taipeiensis and S. barbata , suggest that they belonged to a single species rather than two. As a result, S. taipeiensis is treated as a synonym of S. barbata .

          Related collections

          Most cited references 9

          • Record: found
          • Abstract: not found
          • Book Chapter: not found

          Labiatae

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            An updated phylogeny and classification of Lamiaceae subfamily Lamioideae

              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              Diversification, Biogeographic Pattern, and Demographic History of Taiwanese Scutellaria Species Inferred from Nuclear and Chloroplast DNA

              The ragged topography created by orogenesis generates diversified habitats for plants in Taiwan. In addition to colonization from nearby mainland China, high species diversity and endemism of plants is also present in Taiwan. Five of the seven Scutellaria species (Lamiaceae) in Taiwan, for example, are endemic to the island. Hypotheses of multiple sources or in situ radiation have arisen to explain the high endemism of Taiwanese species. In this study, phylogenetic analyses using both nuclear and chloroplast markers revealed the multiple sources of Taiwanese Scutellaria species and confirmed the rapid and recent speciation of endemic species, especially those of the “indica group” composed of S. indica, S. austrotaiwanensis, S. tashiroi, and S. playfairii. The common ancestors of the indica group colonized first in northern Taiwan and dispersed regionally southward and eastward. Climate changes during glacial/interglacial cycles led to gradual colonization and variance events in the ancestors of these species, resulting in the present distribution and genetic differentiation of extant populations. Population decline was also detected in S. indica, which might reflect a bottleneck effect from the glacials. In contrast, the recently speciated endemic members of the indica group have not had enough time to accumulate much genetic variation and are thus genetically insensitive to demographic fluctuations, but the extant lineages were spatially expanded in the coalescent process. This study integrated phylogenetic and population genetic analyses to illustrate the evolutionary history of Taiwanese Scutellaria of high endemism and may be indicative of the diversification mechanism of plants on continental islands.
                Bookmark

                Author and article information

                Contributors
                Journal
                PhytoKeys
                PhytoKeys
                3
                urn:lsid:arphahub.com:pub:F7FCE910-8E78-573F-9C77-7788555F8AAD
                PhytoKeys
                Pensoft Publishers
                1314-2011
                1314-2003
                2020
                24 February 2020
                : 140
                : 33-45
                Affiliations
                [1 ] School of Life Science, National Taiwan Normal University, No. 88, Tingchou Rd. 4 section, Wenshan District, Taipei City 116, Taiwan National Taiwan Normal University Taipei City Taiwan
                Author notes
                Corresponding author: Chien-Ti Chao ( ff8bahamut@ 123456gmail.com )

                Academic editor: Alan Paton

                Article
                48578
                10.3897/phytokeys.140.48578
                7052021
                Chien-Ti Chao, Bing-Hong Huang, Jui-Tse Chang, Pei-Chun Liao

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Categories
                Research Article
                Lamiaceae
                Taxonomy
                Cenozoic
                Taiwan

                Plant science & Botany

                lamiaceae, scutellarioideae , plant taxonomy, taiwan, plantae, lamiales, lamiaceae

                Comments

                Comment on this article