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Is floral structure a reliable indicator of breeding system in the Brassicaceae?

This study investigated the usefulness of floral characters as a potential indicator of breeding system in the Brassicaceae. Initially, pod set, seed set and pollen tube growth experiments were carried out to confirm the breeding systems of 53 lines representing 25 different cultivated and weedy spe...

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Autores principales: Salisbury, Phillip A., Fripp, Yvonne J., Gurung, Allison M., Williams, Warren M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5360323/
https://www.ncbi.nlm.nih.gov/pubmed/28323862
http://dx.doi.org/10.1371/journal.pone.0174176
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author Salisbury, Phillip A.
Fripp, Yvonne J.
Gurung, Allison M.
Williams, Warren M.
author_facet Salisbury, Phillip A.
Fripp, Yvonne J.
Gurung, Allison M.
Williams, Warren M.
author_sort Salisbury, Phillip A.
collection PubMed
description This study investigated the usefulness of floral characters as a potential indicator of breeding system in the Brassicaceae. Initially, pod set, seed set and pollen tube growth experiments were carried out to confirm the breeding systems of 53 lines representing 25 different cultivated and weedy species from the Brassicaceae. The results of the pod set tests clearly differentiated between self-compatible and self-incompatible species. Floral characters were then evaluated on one or more lines of each of the 25 species. Fourteen floral characters were evaluated including, flower diameter, Cruden’s outcrossing index, timing and direction of dehiscence and pollen-ovule ratio. Significant differences between species were evident in all of the floral characteristics evaluated. Flower diameter was generally larger in self-incompatible species than self-compatible species and pollen/ovule ratio was generally higher in self-incompatible species than self-compatible species. However, none of the floral characteristics was able to clearly differentiate the self-compatible and self-incompatible species and allow prediction of the breeding system with absolute confidence. The floral characteristic which was most effective at differentiating the two groups was anther direction at dehiscence.
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spelling pubmed-53603232017-04-06 Is floral structure a reliable indicator of breeding system in the Brassicaceae? Salisbury, Phillip A. Fripp, Yvonne J. Gurung, Allison M. Williams, Warren M. PLoS One Research Article This study investigated the usefulness of floral characters as a potential indicator of breeding system in the Brassicaceae. Initially, pod set, seed set and pollen tube growth experiments were carried out to confirm the breeding systems of 53 lines representing 25 different cultivated and weedy species from the Brassicaceae. The results of the pod set tests clearly differentiated between self-compatible and self-incompatible species. Floral characters were then evaluated on one or more lines of each of the 25 species. Fourteen floral characters were evaluated including, flower diameter, Cruden’s outcrossing index, timing and direction of dehiscence and pollen-ovule ratio. Significant differences between species were evident in all of the floral characteristics evaluated. Flower diameter was generally larger in self-incompatible species than self-compatible species and pollen/ovule ratio was generally higher in self-incompatible species than self-compatible species. However, none of the floral characteristics was able to clearly differentiate the self-compatible and self-incompatible species and allow prediction of the breeding system with absolute confidence. The floral characteristic which was most effective at differentiating the two groups was anther direction at dehiscence. Public Library of Science 2017-03-21 /pmc/articles/PMC5360323/ /pubmed/28323862 http://dx.doi.org/10.1371/journal.pone.0174176 Text en © 2017 Salisbury 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
Salisbury, Phillip A.
Fripp, Yvonne J.
Gurung, Allison M.
Williams, Warren M.
Is floral structure a reliable indicator of breeding system in the Brassicaceae?
title Is floral structure a reliable indicator of breeding system in the Brassicaceae?
title_full Is floral structure a reliable indicator of breeding system in the Brassicaceae?
title_fullStr Is floral structure a reliable indicator of breeding system in the Brassicaceae?
title_full_unstemmed Is floral structure a reliable indicator of breeding system in the Brassicaceae?
title_short Is floral structure a reliable indicator of breeding system in the Brassicaceae?
title_sort is floral structure a reliable indicator of breeding system in the brassicaceae?
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5360323/
https://www.ncbi.nlm.nih.gov/pubmed/28323862
http://dx.doi.org/10.1371/journal.pone.0174176
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