Seed image analysis and taxonomy of Diplotaxis DC. (Brassicaceae, Brassiceae)

Grillo, Oscar and Draper, David and Venora, Gianfranco and Martinez Laborde, Juan Bautista (2012). Seed image analysis and taxonomy of Diplotaxis DC. (Brassicaceae, Brassiceae). "Systematics And Biodiversity", v. 10 (n. 1); pp. 57-70. ISSN 1477-2000. https://doi.org/10.1080/14772000.2012.658881.

Description

Title: Seed image analysis and taxonomy of Diplotaxis DC. (Brassicaceae, Brassiceae)
Author/s:
  • Grillo, Oscar
  • Draper, David
  • Venora, Gianfranco
  • Martinez Laborde, Juan Bautista
Item Type: Article
Título de Revista/Publicación: Systematics And Biodiversity
Date: March 2012
ISSN: 1477-2000
Volume: 10
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Biología Vegetal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The genus Diplotaxis, comprising 32 or 34 species, plus several additional infraspecific taxa, displays a considerable degree of heterogeneity in the morphology, molecular markers, chromosome numbers and geographical amplitude of the species. The taxonomic relationships within the genus Diplotaxis were investigated by phenetic characterisation of germplasm belonging to 27 taxa of the genus, because there is an increasing interest in Diplotaxis, since some of its species (D. tenuifolia, D. muralis) are gathered or cultivated for human consumption, whereas others are frequent arable weeds (D. erucoides) in many European vineyards. Using a computer-aided vision system, 33 morpho-colorimetric features of seeds were electronically measured. The data were used to implement a statistical classifier, which is able to discriminate the taxa within the genus Diplotaxis, in order to compare the resulting species grouping with the current infrageneric systematics of this genus. Despite the high heterogeneity of the samples, due to the great intra-population variability, the stepwise Linear Discriminant Analysis method, applied to distinguish the groups, was able to reach over 80% correct identification. The results obtained allowed us to confirm the current taxonomic position of most taxa and suggested the taxonomic position of others for reconsideration.

More information

Item ID: 16059
DC Identifier: http://oa.upm.es/16059/
OAI Identifier: oai:oa.upm.es:16059
DOI: 10.1080/14772000.2012.658881
Official URL: http://www.tandfonline.com/doi/full/10.1080/14772000.2012.658881
Deposited by: Memoria Investigacion
Deposited on: 05 Jul 2013 15:10
Last Modified: 21 Apr 2016 16:24
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