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Evolution of pollen morphology in Loranthaceae. | LitMetric

Evolution of pollen morphology in Loranthaceae.

Grana

Department of Palaeontology, University of Vienna, Vienna, Austria.

Published: February 2017

AI Article Synopsis

  • - The study investigates the relationship between pollen characteristics and taxonomy in the Loranthaceae family using advanced imaging techniques to analyze pollen from 35 genera, including 15 that are newly examined.
  • - By applying a molecular phylogenetic approach, researchers trace the evolution of Loranthaceae pollen, confirming that pollen features are closely tied to the family’s phylogenetic relationships and can help identify specific genera or lineages.
  • - The findings reveal both agreement and differences between pollen analysis and molecular data, suggesting directions for future research that integrates both palynological and molecular methods to enhance understanding of Loranthaceae evolution and classification.

Article Abstract

Earlier studies indicate a strong correlation of pollen morphology and ultrastructure with taxonomy in Loranthaceae. Using high-resolution light microscopy and scanning electron microscopy imaging of the same pollen grains, we document pollen types of 35 genera including 15 studied for the first time. Using a molecular phylogenetic framework based on currently available sequence data with good genus-coverage, we reconstruct trends in the evolution of Loranthaceae pollen and pinpoint traits of high diagnostic value, partly confirming earlier intuitive hypotheses based on morphological observations. We find that pollen morphology in Loranthaceae is strongly linked to phylogenetic relationships. Some pollen types are diagnostic for discrete genera or evolutionary lineages, opening the avenue to recruit dispersed fossil pollen as age constraints for dated phylogenies and as independent data for testing biogeographic scenarios; so far based exclusively on modern-day data. Correspondences and discrepancies between palynological and molecular data and current taxonomic/systematic concepts are identified and suggestions made for future palynological and molecular investigations of Loranthaceae.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5771552PMC
http://dx.doi.org/10.1080/00173134.2016.1261939DOI Listing

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