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Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance
The genus Rubus L. (Rosaceae) not been investigated satisfactorily in terms of palynology. This genus is taxonomically very difficult due to the large number of species and problems with their delimitation, as well as very different distribution areas of particular species. The aim of this study was...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7259507/ https://www.ncbi.nlm.nih.gov/pubmed/32469903 http://dx.doi.org/10.1371/journal.pone.0221607 |
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author | Lechowicz, Kacper Wrońska-Pilarek, Dorota Bocianowski, Jan Maliński, Tomasz |
author_facet | Lechowicz, Kacper Wrońska-Pilarek, Dorota Bocianowski, Jan Maliński, Tomasz |
author_sort | Lechowicz, Kacper |
collection | PubMed |
description | The genus Rubus L. (Rosaceae) not been investigated satisfactorily in terms of palynology. This genus is taxonomically very difficult due to the large number of species and problems with their delimitation, as well as very different distribution areas of particular species. The aim of this study was to investigate pollen morphology and for the first time the ranges of intrageneric and interspecific variability of Rubus species, as well as verify the taxonomic usefulness of these traits in distinguishing studied taxa from this genus. The selected species of the genus Rubus were analysed for 11 quantitative pollen characteristics and the following qualitative ones: exine ornamentation, pollen outline and shape, as well as bridge structure. Analyses were conducted on a total of 1740 pollen grains, which represent 58 blackberry species belonging to a majority of subgenera and all the sections and series found in Poland. The most important characters included exine ornamentation (exine ornamentation type, width and direction of grooves and striae, number and diameter of perforations) and length of the polar axis (P). The arrangement of the examined species on the dendrogram does not corroborate division of the genus Rubus into subgenera, sections and series currently adopted in taxonomy. This fact is not surprising because the taxonomy of the genus was not based on pollen characters. Pollen features should be treated in taxonomy as auxiliary, because they fail to differentiate several (10) individual species, while the other ones create groups with similar pollen traits. |
format | Online Article Text |
id | pubmed-7259507 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-72595072020-06-08 Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance Lechowicz, Kacper Wrońska-Pilarek, Dorota Bocianowski, Jan Maliński, Tomasz PLoS One Research Article The genus Rubus L. (Rosaceae) not been investigated satisfactorily in terms of palynology. This genus is taxonomically very difficult due to the large number of species and problems with their delimitation, as well as very different distribution areas of particular species. The aim of this study was to investigate pollen morphology and for the first time the ranges of intrageneric and interspecific variability of Rubus species, as well as verify the taxonomic usefulness of these traits in distinguishing studied taxa from this genus. The selected species of the genus Rubus were analysed for 11 quantitative pollen characteristics and the following qualitative ones: exine ornamentation, pollen outline and shape, as well as bridge structure. Analyses were conducted on a total of 1740 pollen grains, which represent 58 blackberry species belonging to a majority of subgenera and all the sections and series found in Poland. The most important characters included exine ornamentation (exine ornamentation type, width and direction of grooves and striae, number and diameter of perforations) and length of the polar axis (P). The arrangement of the examined species on the dendrogram does not corroborate division of the genus Rubus into subgenera, sections and series currently adopted in taxonomy. This fact is not surprising because the taxonomy of the genus was not based on pollen characters. Pollen features should be treated in taxonomy as auxiliary, because they fail to differentiate several (10) individual species, while the other ones create groups with similar pollen traits. Public Library of Science 2020-05-29 /pmc/articles/PMC7259507/ /pubmed/32469903 http://dx.doi.org/10.1371/journal.pone.0221607 Text en © 2020 Lechowicz et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Lechowicz, Kacper Wrońska-Pilarek, Dorota Bocianowski, Jan Maliński, Tomasz Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance |
title | Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance |
title_full | Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance |
title_fullStr | Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance |
title_full_unstemmed | Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance |
title_short | Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance |
title_sort | pollen morphology of polish species from the genus rubus l. (rosaceae) and its systematic importance |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7259507/ https://www.ncbi.nlm.nih.gov/pubmed/32469903 http://dx.doi.org/10.1371/journal.pone.0221607 |
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