Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analyses

Abstract Background The genus Argyreia Lour. is one of the species-rich Asian genera in the family Convolvulaceae. Several species complexes were recognized in which taxon delimitation was imprecise, especially when examining herbarium materials without fully developed open flowers. The main goal of...

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Main Authors: Paweena Traiperm, Janene Chow, Possathorn Nopun, G. Staples, Sasivimon C. Swangpol
Format: Article
Language:English
Published: SpringerOpen 2017-06-01
Series:Botanical Studies
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40529-017-0178-6
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author Paweena Traiperm
Janene Chow
Possathorn Nopun
G. Staples
Sasivimon C. Swangpol
author_facet Paweena Traiperm
Janene Chow
Possathorn Nopun
G. Staples
Sasivimon C. Swangpol
author_sort Paweena Traiperm
collection DOAJ
description Abstract Background The genus Argyreia Lour. is one of the species-rich Asian genera in the family Convolvulaceae. Several species complexes were recognized in which taxon delimitation was imprecise, especially when examining herbarium materials without fully developed open flowers. The main goal of this study is to investigate and describe leaf anatomy for some morphologically similar Argyreia using epidermal peeling, leaf and petiole transverse sections, and scanning electron microscopy. Phenetic analyses including cluster analysis and principal component analysis were used to investigate the similarity of these morpho-types. Results Anatomical differences observed between the morpho-types include epidermal cell walls and the trichome types on the leaf epidermis. Additional differences in the leaf and petiole transverse sections include the epidermal cell shape of the adaxial leaf blade, the leaf margins, and the petiole transverse sectional outline. The phenogram from cluster analysis using the UPGMA method represented four groups with an R value of 0.87. Moreover, the important quantitative and qualitative leaf anatomical traits of the four groups were confirmed by the principal component analysis of the first two components. The results from phenetic analyses confirmed the anatomical differentiation between the morpho-types. Conclusions Leaf anatomical features regarded as particularly informative for morpho-type differentiation can be used to supplement macro morphological identification.
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spelling doaj.art-3c09d5252ffe4faf813246ae7f961d682022-12-22T00:06:36ZengSpringerOpenBotanical Studies1999-31102017-06-0158111410.1186/s40529-017-0178-6Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analysesPaweena Traiperm0Janene Chow1Possathorn Nopun2G. Staples3Sasivimon C. Swangpol4Department of Plant Science, Faculty of Science, Mahidol UniversityDepartment of Plant Science, Faculty of Science, Mahidol UniversityDepartment of Plant Science, Faculty of Science, Mahidol UniversityHRA, Herbarium, Royal Botanic GardensDepartment of Plant Science, Faculty of Science, Mahidol UniversityAbstract Background The genus Argyreia Lour. is one of the species-rich Asian genera in the family Convolvulaceae. Several species complexes were recognized in which taxon delimitation was imprecise, especially when examining herbarium materials without fully developed open flowers. The main goal of this study is to investigate and describe leaf anatomy for some morphologically similar Argyreia using epidermal peeling, leaf and petiole transverse sections, and scanning electron microscopy. Phenetic analyses including cluster analysis and principal component analysis were used to investigate the similarity of these morpho-types. Results Anatomical differences observed between the morpho-types include epidermal cell walls and the trichome types on the leaf epidermis. Additional differences in the leaf and petiole transverse sections include the epidermal cell shape of the adaxial leaf blade, the leaf margins, and the petiole transverse sectional outline. The phenogram from cluster analysis using the UPGMA method represented four groups with an R value of 0.87. Moreover, the important quantitative and qualitative leaf anatomical traits of the four groups were confirmed by the principal component analysis of the first two components. The results from phenetic analyses confirmed the anatomical differentiation between the morpho-types. Conclusions Leaf anatomical features regarded as particularly informative for morpho-type differentiation can be used to supplement macro morphological identification.http://link.springer.com/article/10.1186/s40529-017-0178-6Leaf epidermisLeaf transverse sectionPCASEMSpecies complexStomatal index
spellingShingle Paweena Traiperm
Janene Chow
Possathorn Nopun
G. Staples
Sasivimon C. Swangpol
Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analyses
Botanical Studies
Leaf epidermis
Leaf transverse section
PCA
SEM
Species complex
Stomatal index
title Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analyses
title_full Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analyses
title_fullStr Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analyses
title_full_unstemmed Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analyses
title_short Identification among morphologically similar Argyreia (Convolvulaceae) based on leaf anatomy and phenetic analyses
title_sort identification among morphologically similar argyreia convolvulaceae based on leaf anatomy and phenetic analyses
topic Leaf epidermis
Leaf transverse section
PCA
SEM
Species complex
Stomatal index
url http://link.springer.com/article/10.1186/s40529-017-0178-6
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