Phylogenetic relationships between and within sections Hypechusa, Narbonensis and Peregrinae of genus Vicia (Fabaceae) based on evidence from isozymes and morphology

Abstract

Abstract:Previous studies of vetch species belonging to sections Hypechusa, Narbonensis and Peregrinae have revealed controversies and open questions that deserve revisiting with the use of contemporary approaches. The paper extends the previous work of Leht and Jaaska (2002) by describing variation of 16 isozymes and 86 morphological characters among 17 Vicia species belonging to sections Hypechusa, Narbonensis and Peregrinae of the type subgenus in comparison with V. bithynica of section Pseudolathyrus. Three more isozymes and 12 new morphological characters are included to improve the resolution of phylogenetic relationships. The maximum parsimony trees based on isozymes and morphology revealed essentially the same four clusters of species that correspond to series Hypechusa and Hyrcanicae of section Hypechusa, to sections Narbonensis and Peregrinae of current taxonomy, except that the isozyme tree placed V. lutea of series Hypechusa into a separate clade. Isozyme variation in V. mollis, V. noeana, V. sericocarpa and V. ciliatula of section Hypechusa is described for the first time. Twenty-three species-specific isozymes that may be used for species identification by analysis of seeds are described. Two new isozymes that distinguish V. serratifolia from V. narbonensis are described that further support their specific status. Series Hypechusa and Hyrcanicae of section Hypechusa, sections Narbonensis and Peregrinae of traditional taxonomy are monophyletic groups that deserve sectional status within the genus Vicia. The phylogenetic position and sectional placement of V. lutea warrants further study with independent sets of DNA characters.

Phylogenetic Relationships Between and Within 11 Taxa of Genus Vicia from Algeria Based on Evidence from Isozymes and Physical Seed Properties

“…The taxa of V. narbonensis showed the same three morphs (S37.5, S44.6, S50.3). Our results concord with those of Jaaska and Leht (2007) which showed the species of sections Hypechusa as sister to the clade of section Narbonensis. A closer relationship between the NSC and section Hypechusa has been deduced based on isozyme studies by Jaaska (1997) where the Narbonensis section appears as a clade on both cladistic and phenetic trees which is linked to species of the section Hypechusa.…”

Interspecific variation of seed morphological and micro‐morphological traits in the genus Vicia (Fabaceae)

“…contains six Vicia species with some major seed characteristics, such as a lens opposite the hilum (Alefeld, 1860). In the cladistic parsimony analysis based on isozyme and 84 morphological variations, species in section Hypechusa were in a monophyletic group (Jaaska & Leht, 2007). However, in the present study, based on 20 seed morphological characteristics, the species is section Hypechusa were not in a monophyletic group.…”

Significance of genetic resources of cool season annual legumes, I: Crop wild relatives

“…However, a chemotaxonomic investigation of leaf flavonoids by paper chromatography showed that faba bean is rather distinct from both (Perrino et al 1991). Apart from morphological differences, such as leaf indentation present in French vetch, they differ from each other by alternate orthozymes ( Jaaska & Leht 2007).…”