Taxonomic Significance of Seed Morphology in Veronica L. (Plantaginaceae) Species from Central Europe

被引:5
|
作者
Mazur, Malgorzata [1 ]
Marcysiak, Katarzyna [1 ]
Dunajska, Agnieszka [1 ]
Gawlak, Magdalena [2 ]
Kaluski, Tomasz [2 ]
机构
[1] Kazimierz Wielki Univ, Fac Biol Sci, Ossolinskich 12, PL-85093 Bydgoszcz, Poland
[2] Natl Res Inst, Inst Plant Protect, Wladyslawa Wegorka 20, PL-60318 Poznan, Poland
来源
PLANTS-BASEL | 2022年 / 11卷 / 01期
关键词
micromorphology; numerical analysis; scanning electron microscopy; seed; seed coat; ACYLATED FLAVONE GLYCOSIDES; SYSTEMATIC SIGNIFICANCE; TRIBE VERONICEAE; SCROPHULARIACEAE; CHARACTERS; PHYLOGENY; EVOLUTION; SOUTHERN;
D O I
10.3390/plants11010088
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In this study, 1159 seeds of 29 Central European species of the genus Veronica were analyzed based on scanning electron microscopy images. The species belonged to nine subgenera: Beccabunga, Chamaedrys, Cochlidiosperma, Pellidosperma, Pentasepalae, Pocilla, Pseudolysimachium, Stenocarpon and Veronica, following the newest phylogenetic classification of the genus. Nine measured characteristics of seeds and nine ratios were analyzed statistically using ANOVA followed by post hoc testing, cluster analysis and discriminant analysis. In most cases, the results were not congruent with the contemporary classification of the genus. Examinations of qualitative seed features by scanning electron microscopy included the cochlidiospermous or discoid seed type, the seed shape, the general sculpture of the seed coat surface, the sculpture of anticlinal and periclinal walls and some species-specific traits such as the presence of the epidermal appendix. All these features, apart from seed shape, were useful to distinguish all subgenera and some species within subgenera: Beccabunga, Chamaedrys, Pellidosperma, Pocilla (only V. filiformis) and Veronica. The identification key based on the seed micromorphological features was prepared.
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页数:17
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