Application of principal component analysis to identify pollen subtypes in Miconia (Melastomataceae)
Ceballos, Sergio J.; María E. García; Alber to C. Slanis; Nora J. F. Reyes. 2014. “Application of principal component analysis to identify pollen subtypes in Miconia (Melastomataceae)”. Lilloa 51 (2). Miconia Ruiz et Pav. inhabits forest regions being represented in Argentina by 10 species. The aim of this study was to identify possible pollen subtypes in the Argentine species of Miconia. Previous studies found that the genus is stenopalynous. Pollen grains of each species were measured with an optical microscope and a PCA was conducted based on a matrix of species versus morphometric variables of pollen grains. Two components were selected because these explained together 77% of the total variation in the data. Most of the variables were correlated with component 1. Three pollen subtypes were defined in the genus, but four of the species could not be included in any of them because they presented intermediated characters. It was concluded that multivariate analysis is a possible tool that helps to differentiate pollen subtypes within stenopalynous genera
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | spa |
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Fundación Miguel Lillo
2014
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| Online Access: | http://www.lillo.org.ar/journals/index.php/lilloa/article/view/344 |
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