Seed morphological properties related to taxonomy in Silene L. species

  1. José Javier Martín-Gómez 2
  2. José Luis Rodríguez-Lorenzo 1
  3. Ana Juan 4
  4. Ángel Tocino 3
  5. Bohuslav Janousek 1
  6. Emilio Cervantes 2
  1. 1 Plant Developmental Genetics, Institute of Biophysics v.v.i, Academy of Sciences of the Czech Republic, Brno
  2. 2 Instituto de Recursos Naturales y Agrobiología (Consejo Superior de Investigaciones Científicas), Salamanca, Spain
  3. 3 Departamento de Matemáticas, Facultad de Ciencias, Universidad de Salamanca
  4. 4 Departamento de Ciencias Ambientales y Recursos Naturales, Universidad de Alicante
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Revue:
Taxonomy

ISSN: 2673-6500

Année de publication: 2022

Volumen: 2

Número: 3

Pages: 298-323

Type: Article

DOI: 10.3390/TAXONOMY2030024 GOOGLE SCHOLAR lock_openAccès ouvert editor

D'autres publications dans: Taxonomy

Objectifs de Développement Durable

Résumé

Silene taxonomy, traditionally based on morphological characteristics, is now driven by DNA sequence analysis. While the usefulness of both morphological and molecular methods remains undisputed, there is an interest in the identification of the morphological characteristics useful in taxonomy. A quantitative morphological analysis of seeds belonging to Silene species is presented here and is based on seed image samples for 95 populations belonging to 52 species (49 species of Silene and 3 related species). According to the silhouette of lateral views of their seed images, Silene species are classified into three groups: smooth, rugose and echinate. The measurements taken for the lateral and dorsal views of the seeds include area, circularity, roundness, aspect ratio and solidity; differences between groups are found for all characteristics. Solidity is the ratio between the area of the seed silhouette and the corresponding convex hull. It is related to seed convexity and is the measurement with the lowest coefficient of variation. In the lateral views, solidity values are conserved, while in the dorsal views, differences are found between the three groups. The group of echinate seeds has the highest values of solidity in the dorsal views, and their species belong to S. subg. Behenantha and S. subg. Lychnis. The group of smooth seeds contains mainly species corresponding to S. subg. Silene, while species of S. subg. Lychnis are absent

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