Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae)
Species delimitation in recent radiations is challenging because these species often display overlap in their expression of morphological characters. Here we analyze morphological characters measured from field-collected herbarium specimens and compare them to measurements from live plants grown in...
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The American Society of Plant Taxonomists
2018
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ftbioone:10.1600/036364418X697058 2023-07-30T03:59:16+02:00 Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae) Jessica M. Prebble Heidi M. Meudt Jennifer A. Tate V. Vaughan Symonds Jessica M. Prebble Heidi M. Meudt Jennifer A. Tate V. Vaughan Symonds world 2018-04-18 text/HTML https://doi.org/10.1600/036364418X697058 en eng The American Society of Plant Taxonomists doi:10.1600/036364418X697058 All rights reserved. https://doi.org/10.1600/036364418X697058 Text 2018 ftbioone https://doi.org/10.1600/036364418X697058 2023-07-09T09:40:03Z Species delimitation in recent radiations is challenging because these species often display overlap in their expression of morphological characters. Here we analyze morphological characters measured from field-collected herbarium specimens and compare them to measurements from live plants grown in a common garden to determine reliable characters that could be used to delimit species in the Myosotis pygmaea (Boraginaceae) species group in New Zealand. This species complex is of primary interest because it includes many threatened species as well as several taxonomically indeterminate entities. The common garden experiment revealed high levels of morphological plasticity within the M. pygmaea species group, as plants in the common garden grew to be strikingly larger than those in the field. The M. pygmaea species complex was found to be a morphologically definable group, and several taxonomically indeterminate entities were placed as being either morphologically similar to the M. pygmaea species group or to other species complexes. In multidimensional scaling analyses of morphological data, of the five named species that make up the M. pygmaea species group, three formed separate clusters (M. pygmaea, M. glauca, and M. brevis), and the two others were indistinguishable from each other (M. antarctica and M. drucei). This study represents an important step towards a planned integrative taxonomic revision of the M. pygmaea species group, and highlights the value of morphological data collected from a common garden experiment. Text Antarc* Antarctica BioOne Online Journals New Zealand Systematic Botany 43 1 266 289 |
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description |
Species delimitation in recent radiations is challenging because these species often display overlap in their expression of morphological characters. Here we analyze morphological characters measured from field-collected herbarium specimens and compare them to measurements from live plants grown in a common garden to determine reliable characters that could be used to delimit species in the Myosotis pygmaea (Boraginaceae) species group in New Zealand. This species complex is of primary interest because it includes many threatened species as well as several taxonomically indeterminate entities. The common garden experiment revealed high levels of morphological plasticity within the M. pygmaea species group, as plants in the common garden grew to be strikingly larger than those in the field. The M. pygmaea species complex was found to be a morphologically definable group, and several taxonomically indeterminate entities were placed as being either morphologically similar to the M. pygmaea species group or to other species complexes. In multidimensional scaling analyses of morphological data, of the five named species that make up the M. pygmaea species group, three formed separate clusters (M. pygmaea, M. glauca, and M. brevis), and the two others were indistinguishable from each other (M. antarctica and M. drucei). This study represents an important step towards a planned integrative taxonomic revision of the M. pygmaea species group, and highlights the value of morphological data collected from a common garden experiment. |
author2 |
Jessica M. Prebble Heidi M. Meudt Jennifer A. Tate V. Vaughan Symonds |
format |
Text |
author |
Jessica M. Prebble Heidi M. Meudt Jennifer A. Tate V. Vaughan Symonds |
spellingShingle |
Jessica M. Prebble Heidi M. Meudt Jennifer A. Tate V. Vaughan Symonds Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae) |
author_facet |
Jessica M. Prebble Heidi M. Meudt Jennifer A. Tate V. Vaughan Symonds |
author_sort |
Jessica M. Prebble |
title |
Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae) |
title_short |
Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae) |
title_full |
Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae) |
title_fullStr |
Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae) |
title_full_unstemmed |
Bolstering Species Delimitation in Difficult Species Complexes by Analyzing Herbarium and Common Garden Morphological Data: A Case Study Using the New Zealand Native Myosotis pygmaea Species Group (Boraginaceae) |
title_sort |
bolstering species delimitation in difficult species complexes by analyzing herbarium and common garden morphological data: a case study using the new zealand native myosotis pygmaea species group (boraginaceae) |
publisher |
The American Society of Plant Taxonomists |
publishDate |
2018 |
url |
https://doi.org/10.1600/036364418X697058 |
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world |
geographic |
New Zealand |
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New Zealand |
genre |
Antarc* Antarctica |
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Antarc* Antarctica |
op_source |
https://doi.org/10.1600/036364418X697058 |
op_relation |
doi:10.1600/036364418X697058 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1600/036364418X697058 |
container_title |
Systematic Botany |
container_volume |
43 |
container_issue |
1 |
container_start_page |
266 |
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289 |
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1772810000905797632 |